pax_global_header00006660000000000000000000000064135064332640014520gustar00rootroot0000000000000052 comment=7e5b6be461fb29a2e9ada116b00eadcc4d5b9b1b shc-4.0.3/000077500000000000000000000000001350643326400123015ustar00rootroot00000000000000shc-4.0.3/AUTHORS000066400000000000000000000001541350643326400133510ustar00rootroot00000000000000Francisco Garcia MD. JAHIDUL HAMID intika shc-4.0.3/COPYING000066400000000000000000001045131350643326400133400ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. 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The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . shc-4.0.3/ChangeLog000066400000000000000000000137041350643326400140600ustar00rootroot00000000000000CHANGES 4.0.3 Tue Nov 20 08:22:20 UTC 2018 * Enhance -H flag by intika (Hide commands arguments from ps and cmdline) * Remove -s flag (experimental feature not working as expected by intika ) 4.0.2 Mon 01 Jul 2019 02:57:36 PM UTC * Fix typo * Fix NULL-ptr dereference in shll string (Thanks to Ren Kimura) 4.0.1 Tue Nov 20 08:22:20 UTC 2018 * Add LDFLAGS environment variable (Thanks to zboszor ) 4.0.0 Mon Nov 12 16:54:56 UTC 2018 * Add -H option for extra security without root (Thanks to intika ). It protects against dumping, code injection, `cat /proc/pid/cmdline`, ptrace, etc.. (only works with Bourne shell (sh) scripts with no parameter) * Add -s option to force single process for hardening features (requires -H) . (only works with Bourne shell (sh) scripts with no parameter) * dash support 3.9.8 Sat Oct 20 17:49:28 UTC 2018 * Add setuid option -S (Thanks to Boon Pang ) 3.9.7 Sat Oct 20 15:25:13 UTC 2018 * Fix issue #58 3.9.6 Sat Jun 3 10:05:03 UTC 2017 * Fix issue #38 3.9.5 Wed May 31 01:35:33 UTC 2017 * Fix issue #36 3.9.4 Sat May 13 18:46:05 UTC 2017 * Fix issue #23 (debian bug #861180) (Thanks to original author Francisco Rosales ) 3.9.3 Sat Jul 30 18:46:34 BDT 2016 * zsh support * Fix issue #13 (https://github.com/neurobin/shc/issues/13) 3.9.2 Fri Aug 21 16:12:33 BDT 2015 Added BusyBox support with patch taken from: https://onedrive.live.com/prev?cid=18a41d08a9f3c543&id=18A41D08A9F3C543!231&authkey=!AJQ6Iah_5D3WJ60&v=TextFileEditor as suggested by https://github.com/marcoburatto 3.9.1 Fri Apr 03 00:22:11 GMT 2015 Renamed option -T to -U and reversed it's logic. So now, the executable prepared will execute without using sudo, by default. 3.9.0 Wed Apr 01 08:35:22 AM GMT 2015 (http://github.com/neurobin) Added output file option with [-o filename] and fixed bug on make install (manual install failed) Now you can access manual by entering command: man shc in a terminal. 3.8.9 Wed Apr 25 09:24:25 CEST 2012 Thanks to Giacomo Picconi for: - Fixing a long standing bug making the source not hidden. 3.8.8 Mon Nov 28 11:26:25 CEST 2012 "me". 3.8.7 Wed Feb 10 20:40:37 CET 2010 - Bug on 64bit systems with expiration dates. 3.8.6 Fri Jul 7 15:54:39 CEST 2006 Thanks to George Danchev for: - License clarification about the rc4 implementation. 3.8.5 Fri Oct 21 13:11:36 CEST 2005 Thanks to Jukka A. Ukkonen for: - Fixed untraceable() problems on FreeBSD. 3.8.4 Tue Oct 4 16:52:15 CEST 2005 Thanks to Ron McOuat for: - Fixed sma11 -d option bug. 3.8.3 Tue Jun 28 21:29:06 CEST 2005 Thanks to Jacek Kalinski for: - Fixed bug: "vfork" fails on multiprocessor systems. 3.8.2 Thu Jun 16 17:15:59 CEST 2005 Thanks to Arjen Visser for: - Fixed bug: "rlax" used after encryption. Thanks to Nalneesh Gaur for: - Read permision of the script.x exposes it to disassembling. - Group and others read permision is now removed by default. 3.8 Thu Nov 4 20:33:52 CET 2004 Fixed incorrect implementation on rc4. Hidden all the binary executable symbols but one. Expiration date and most strings are encrypted too. All the encrypted payload is now randomized. 3.7 Wed Jun 18 16:32:26 CEST 2003 Thanks to Philipp Koller for: - Removed all strings in the compiled script. - Improved program output and error messages. - The -m option allows to define the *complete* expiration message. - Updated manpage shc.1. Thanks to Bryan for: - Fix wrong $0 on ksh. 3.6 Fri Feb 21 09:40:32 CET 2003 Two new options: -D switch on Debug exec calls. -T switch off unTraceable. Bash does not need -- after -c. 3.5 Mon Jan 20 19:08:43 CET 2003 Rewrite of large strings to silence the ISO C89 compiler warnings about strings larger than 509 characters. 3.4 Tue Apr 16 17:43:12 CEST 2002 Remove "bad alignment" problem on AIX and other systems. Where exists, use /proc//as in untraceable. 3.3 Thu Jan 24 21:27:07 CET 2002 Prevent to ptrace the process. 3.2 Tue Mar 9 19:03:54 CET 1999 Find ancient pclose that must be fclose. 3.1 Tue Feb 16 21:36:59 CET 1999 Fixed a misbehavior on scripts with a in-frist-line option equal to "end of options" (i.e. #!/bin/sh -- ) (Thanks to Bernard Blundell ) Stupid GCC "warning: return type of `main' is not `int'" removed. 3.0 Tue Oct 14 14:20:52 MET DST 1997 Added a new option "-r" to force a relaxed security and so make a redistributable binary. Modified expiration day format. Now is dd/mm/yyyy. 3.0b3 Fri Jun 6 22:09:05 WET DST 1997 Yet other few bugs fixed. Output format simplified. -pedantic compilation. 3.0b2 Tue Jun 3 17:51:51 GMT 1997 Some explicit type conversions removed. Fixed the bug "END_OF_FILE" when compiling the generated code. A flush is needed before a pclose. st_blksize and st_blocks struct stat fields does not exist on SCO, both not used now. 3.0b1 Wed Feb 26 14:27:22 WET 1997 The main difference with 2.4 is that in it the script was compressed an then shuffle around, now int 3.0 the script is encripted with an inline code, so not needend any external comand to work, and been faster at startup. Other related adventage is that the only information not encripted in .x.c is an stamp, expiration date and provider email address. Something equivalent to cheksums have been used to enforced at execution that the executing shell has not been modified from the time the script was compiled. If anybody tries to change the excuting shell, .x will refuse to execute. The generated .x.c source code is now readable. shc-4.0.3/INSTALL000066400000000000000000000366141350643326400133440ustar00rootroot00000000000000Installation Instructions ************************* Copyright (C) 1994-1996, 1999-2002, 2004-2016 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without warranty of any kind. Basic Installation ================== Briefly, the shell command './configure && make && make install' should configure, build, and install this package. The following more-detailed instructions are generic; see the 'README' file for instructions specific to this package. Some packages provide this 'INSTALL' file but do not implement all of the features documented below. 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Shc takes a script, which is specified on the command line and produces C source code. The generated source code is then compiled and linked to produce a stripped binary executable. The compiled binary will still be dependent on the shell specified in the first line of the shell code (i.e shebang) (i.e. #!/bin/sh), thus shc does not create completely independent binaries. shc itself is not a compiler such as cc, it rather encodes and encrypts a shell script and generates C source code with the added expiration capability. It then uses the system compiler to compile a stripped binary which behaves exactly like the original script. Upon execution, the compiled binary will decrypt and execute the code with the shell -c option. ## Install ```bash ./configure make sudo make install ``` **Note** If `make` fails due to *automake* version, run `./autogen.sh` before running the above commands. ### Ubuntu-specific ``` sudo add-apt-repository ppa:neurobin/ppa sudo apt-get update sudo apt-get install shc ``` If the above installation method seems like too much work, then just download a compiled binary package from [release page](https://github.com/neurobin/shc/releases/latest) and copy the `shc` binary to `/usr/bin` and `shc.1` file to `/usr/share/man/man1`. ## Usage ``` shc [options] shc -f script.sh -o binary shc -U -f script.sh -o binary # Untraceable binary (prevent strace, ptrace etc..) shc -H -f script.sh -o binary # Untraceable binary, does not require root (only bourne shell (sh) scripts with no parameter) ``` ## The hardening flag -H This flag is currently in an experimental state and may not work in all systems. This flag only works for **default** shell. For example, if you compile a **bash** script with `-H` flag then the resultant executable will only work in systems where the default shell is **bash**. You may change the default shell which generally is `/bin/sh` which further is just a link to another shell like bash or dash etc. **Also `-H` does not work with positional parameters (yet)** ## Testing ```bash ./configure make make check ``` ## Known limitations The one (and I hope the only) limitation using shc is the _SC_ARG_MAX system configuration parameter. It limits the maximum length of the arguments to the exec function, limiting the maximum length of the runnable script of shc. !! - CHECK YOUR RESULTS CAREFULLY BEFORE USING - !! ## Links 1. [Man Page](http://neurobin.github.io/shc/man.html) 2. [Web Page](http://neurobin.github.io/shc) # Contributing If you want to make pull requests, please do so against the **master** branch. 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"$@" ret=$? if test -f "$cofile"; then test "$cofile" = "$ofile" || mv "$cofile" "$ofile" elif test -f "${cofile}bj"; then test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile" fi rmdir "$lockdir" exit $ret # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'before-save-hook 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC0" # time-stamp-end: "; # UTC" # End: shc-4.0.3/config/depcomp000077500000000000000000000560201350643326400151260ustar00rootroot00000000000000#! /bin/sh # depcomp - compile a program generating dependencies as side-effects scriptversion=2018-03-07.03; # UTC # Copyright (C) 1999-2018 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try '$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by 'PROGRAMS ARGS'. object Object file output by 'PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputting dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac # Get the directory component of the given path, and save it in the # global variables '$dir'. Note that this directory component will # be either empty or ending with a '/' character. This is deliberate. set_dir_from () { case $1 in */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;; *) dir=;; esac } # Get the suffix-stripped basename of the given path, and save it the # global variable '$base'. set_base_from () { base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'` } # If no dependency file was actually created by the compiler invocation, # we still have to create a dummy depfile, to avoid errors with the # Makefile "include basename.Plo" scheme. make_dummy_depfile () { echo "#dummy" > "$depfile" } # Factor out some common post-processing of the generated depfile. # Requires the auxiliary global variable '$tmpdepfile' to be set. aix_post_process_depfile () { # If the compiler actually managed to produce a dependency file, # post-process it. if test -f "$tmpdepfile"; then # Each line is of the form 'foo.o: dependency.h'. # Do two passes, one to just change these to # $object: dependency.h # and one to simply output # dependency.h: # which is needed to avoid the deleted-header problem. { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile" sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile" } > "$depfile" rm -f "$tmpdepfile" else make_dummy_depfile fi } # A tabulation character. tab=' ' # A newline character. nl=' ' # Character ranges might be problematic outside the C locale. # These definitions help. upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ lower=abcdefghijklmnopqrstuvwxyz digits=0123456789 alpha=${upper}${lower} if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Avoid interferences from the environment. gccflag= dashmflag= # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. Note that we *cannot* use a case # here, because this file can only contain one case statement. if test "$depmode" = hp; then # HP compiler uses -M and no extra arg. gccflag=-M depmode=gcc fi if test "$depmode" = dashXmstdout; then # This is just like dashmstdout with a different argument. dashmflag=-xM depmode=dashmstdout fi cygpath_u="cygpath -u -f -" if test "$depmode" = msvcmsys; then # This is just like msvisualcpp but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvisualcpp fi if test "$depmode" = msvc7msys; then # This is just like msvc7 but w/o cygpath translation. # Just convert the backslash-escaped backslashes to single forward # slashes to satisfy depend.m4 cygpath_u='sed s,\\\\,/,g' depmode=msvc7 fi if test "$depmode" = xlc; then # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information. gccflag=-qmakedep=gcc,-MF depmode=gcc fi case "$depmode" in gcc3) ## gcc 3 implements dependency tracking that does exactly what ## we want. Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. ## Unfortunately, FreeBSD c89 acceptance of flags depends upon ## the command line argument order; so add the flags where they ## appear in depend2.am. Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. ## (see the conditional assignment to $gccflag above). ## There are various ways to get dependency output from gcc. Here's ## why we pick this rather obscure method: ## - Don't want to use -MD because we'd like the dependencies to end ## up in a subdir. Having to rename by hand is ugly. ## (We might end up doing this anyway to support other compilers.) ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like ## -MM, not -M (despite what the docs say). Also, it might not be ## supported by the other compilers which use the 'gcc' depmode. ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then gccflag=-MD, fi "$@" -Wp,"$gccflag$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" echo "$object : \\" > "$depfile" # The second -e expression handles DOS-style file names with drive # letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. ## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; sgi) if test "$libtool" = yes; then "$@" "-Wp,-MDupdate,$tmpdepfile" else "$@" -MDupdate "$tmpdepfile" fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files echo "$object : \\" > "$depfile" # Clip off the initial element (the dependent). Don't try to be # clever and replace this with sed code, as IRIX sed won't handle # lines with more than a fixed number of characters (4096 in # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines; # the IRIX cc adds comments like '#:fec' to the end of the # dependency line. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ | tr "$nl" ' ' >> "$depfile" echo >> "$depfile" # The second pass generates a dummy entry for each header file. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" ;; xlc) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the # current directory. Also, the AIX compiler puts '$object:' at the # start of each line; $object doesn't have directory information. # Version 6 uses the directory in both cases. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.u tmpdepfile2=$base.u tmpdepfile3=$dir.libs/$base.u "$@" -Wc,-M else tmpdepfile1=$dir$base.u tmpdepfile2=$dir$base.u tmpdepfile3=$dir$base.u "$@" -M fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" do test -f "$tmpdepfile" && break done aix_post_process_depfile ;; tcc) # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26 # FIXME: That version still under development at the moment of writing. # Make that this statement remains true also for stable, released # versions. # It will wrap lines (doesn't matter whether long or short) with a # trailing '\', as in: # # foo.o : \ # foo.c \ # foo.h \ # # It will put a trailing '\' even on the last line, and will use leading # spaces rather than leading tabs (at least since its commit 0394caf7 # "Emit spaces for -MD"). "$@" -MD -MF "$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'. # We have to change lines of the first kind to '$object: \'. sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile" # And for each line of the second kind, we have to emit a 'dep.h:' # dummy dependency, to avoid the deleted-header problem. sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile" rm -f "$tmpdepfile" ;; ## The order of this option in the case statement is important, since the ## shell code in configure will try each of these formats in the order ## listed in this file. A plain '-MD' option would be understood by many ## compilers, so we must ensure this comes after the gcc and icc options. pgcc) # Portland's C compiler understands '-MD'. # Will always output deps to 'file.d' where file is the root name of the # source file under compilation, even if file resides in a subdirectory. # The object file name does not affect the name of the '.d' file. # pgcc 10.2 will output # foo.o: sub/foo.c sub/foo.h # and will wrap long lines using '\' : # foo.o: sub/foo.c ... \ # sub/foo.h ... \ # ... set_dir_from "$object" # Use the source, not the object, to determine the base name, since # that's sadly what pgcc will do too. set_base_from "$source" tmpdepfile=$base.d # For projects that build the same source file twice into different object # files, the pgcc approach of using the *source* file root name can cause # problems in parallel builds. Use a locking strategy to avoid stomping on # the same $tmpdepfile. lockdir=$base.d-lock trap " echo '$0: caught signal, cleaning up...' >&2 rmdir '$lockdir' exit 1 " 1 2 13 15 numtries=100 i=$numtries while test $i -gt 0; do # mkdir is a portable test-and-set. if mkdir "$lockdir" 2>/dev/null; then # This process acquired the lock. "$@" -MD stat=$? # Release the lock. rmdir "$lockdir" break else # If the lock is being held by a different process, wait # until the winning process is done or we timeout. while test -d "$lockdir" && test $i -gt 0; do sleep 1 i=`expr $i - 1` done fi i=`expr $i - 1` done trap - 1 2 13 15 if test $i -le 0; then echo "$0: failed to acquire lock after $numtries attempts" >&2 echo "$0: check lockdir '$lockdir'" >&2 exit 1 fi if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" # Each line is of the form `foo.o: dependent.h', # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'. # Do two passes, one to just change these to # `$object: dependent.h' and one to simply `dependent.h:'. sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this invocation # correctly. Breaking it into two sed invocations is a workaround. sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp2) # The "hp" stanza above does not work with aCC (C++) and HP's ia64 # compilers, which have integrated preprocessors. The correct option # to use with these is +Maked; it writes dependencies to a file named # 'foo.d', which lands next to the object file, wherever that # happens to be. # Much of this is similar to the tru64 case; see comments there. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then tmpdepfile1=$dir$base.d tmpdepfile2=$dir.libs/$base.d "$@" -Wc,+Maked else tmpdepfile1=$dir$base.d tmpdepfile2=$dir$base.d "$@" +Maked fi stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile1" "$tmpdepfile2" exit $stat fi for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" do test -f "$tmpdepfile" && break done if test -f "$tmpdepfile"; then sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile" # Add 'dependent.h:' lines. sed -ne '2,${ s/^ *// s/ \\*$// s/$/:/ p }' "$tmpdepfile" >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" "$tmpdepfile2" ;; tru64) # The Tru64 compiler uses -MD to generate dependencies as a side # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'. # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put # dependencies in 'foo.d' instead, so we check for that too. # Subdirectories are respected. set_dir_from "$object" set_base_from "$object" if test "$libtool" = yes; then # Libtool generates 2 separate objects for the 2 libraries. These # two compilations output dependencies in $dir.libs/$base.o.d and # in $dir$base.o.d. We have to check for both files, because # one of the two compilations can be disabled. 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The second sed program outputs the file # name when reading, but also accumulates all include files in the # hold buffer in order to output them again at the end. This only # works with sed implementations that can handle large buffers. sed < "$tmpdepfile" -n ' /^Note: including file: *\(.*\)/ { s//\1/ s/\\/\\\\/g p }' | $cygpath_u | sort -u | sed -n ' s/ /\\ /g s/\(.*\)/'"$tab"'\1 \\/p s/.\(.*\) \\/\1:/ H $ { s/.*/'"$tab"'/ G p }' >> "$depfile" echo >> "$depfile" # make sure the fragment doesn't end with a backslash rm -f "$tmpdepfile" ;; msvc7msys) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. 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AC_PROG_CC AC_PROG_INSTALL # Checks for libraries. # Checks for header files. AC_CHECK_HEADERS([fcntl.h stdlib.h string.h unistd.h]) # Checks for typedefs, structures, and compiler characteristics. AC_CHECK_MEMBERS([struct stat.st_rdev]) # Checks for library functions. AC_FUNC_MALLOC AC_FUNC_MKTIME AC_FUNC_REALLOC AC_CHECK_FUNCS([memset putenv strchr strdup strrchr]) AC_OUTPUT(Makefile src/Makefile) shc-4.0.3/shc.1000066400000000000000000000106171350643326400131450ustar00rootroot00000000000000.TH "shc" "1" "January 14, 2019" "shc user manual" "" .SH NAME .PP shc \- Generic shell script compiler .SH SYNOPSIS .PP \f[B]shc\f[] [ \-e \f[I]date\f[] ] [ \-m \f[I]addr\f[] ] [ \-i \f[I]iopt\f[] ] [ \-x \f[I]cmnd\f[] ] [ \-l \f[I]lopt\f[] ] [ \-o \f[I]outfile\f[] ] [ \-ABCDhUHvSr ] \-f \f[I]script\f[] .SH DESCRIPTION .PP \f[B]shc\f[] creates a stripped binary executable version of the script specified with \f[C]\-f\f[] on the command line. .PP The binary version will get a \f[C]\&.x\f[] extension appended by default if \f[I]outfile\f[] is not defined with [\-o \f[I]outfile\f[]] option and will usually be a bit larger in size than the original ascii code. Generated C source code is saved in a file with the extension \f[C]\&.x.c\f[] or in a file specified with appropriate option. .PP If you supply an expiration date with the \f[C]\-e\f[] option, the compiled binary will refuse to run after the date specified. The message \f[B]Please contact your provider\f[] will be displayed instead. This message can be changed with the \f[C]\-m\f[] option. .PP You can compile any kind of shell script, but you need to supply valid \f[C]\-i\f[], \f[C]\-x\f[] and \f[C]\-l\f[] options. .PP The compiled binary will still be dependent on the shell specified in the first line of the shell code (i.e. \f[C]#!/bin/sh\f[]), thus \f[B]shc\f[] does not create completely independent binaries. .PP \f[B]shc\f[] itself is not a compiler such as cc, it rather encodes and encrypts a shell script and generates C source code with the added expiration capability. It then uses the system compiler to compile a stripped binary which behaves exactly like the original script. Upon execution, the compiled binary will decrypt and execute the code with the shell \f[C]\-c\f[] option. Unfortunately, it will not give you any speed improvement as a real C program would. .PP \f[B]shc\f[]\[aq]s main purpose is to protect your shell scripts from modification or inspection. You can use it if you wish to distribute your scripts but don\[aq]t want them to be easily readable by other people. .SH OPTIONS .PP \-e \f[I]date\f[] : Expiration date in \f[I]dd/mm/yyyy\f[] format \f[C][none]\f[] .PP \-m \f[I]message\f[] : message to display upon expiration \f[C]["Please\ contact\ your\ provider"]\f[] .PP \-f \f[I]script_name\f[] : File path of the script to compile .PP \-i \f[I]inline_option\f[] : Inline option for the shell interpreter i.e: \f[C]\-e\f[] .PP \-x \f[I]command\f[] : eXec command, as a printf format i.e: \f[C]exec(\\\\\[aq]%s\\\\\[aq],\@ARGV);\f[] .PP \-l \f[I]last_option\f[] : Last shell option i.e: \f[C]\-\-\f[] .PP \-o \f[I]outfile\f[] : output to the file specified by outfile .PP \-r : Relax security. Make a redistributable binary which executes on different systems running the same operating system. You can release your binary with this option for others to use .PP \-v : Verbose compilation .PP \-S : Switch ON setuid for root callable programs [OFF] .PP \-D : Switch on debug exec calls .PP \-U : Make binary to be untraceable (using \f[I]strace\f[], \f[I]ptrace\f[], \f[I]truss\f[], etc.) .PP \-H : Hardening. Extra security flag without root access requirement that protects against dumping, code injection, \f[C]cat\ /proc/pid/cmdline\f[], ptrace, etc.. This feature is \f[B]experimental\f[] and may not work on all systems. it require bourne shell (sh) scripts any positional parameters. .PP \-C : Display license and exit .PP \-A : Display abstract and exit .PP \-B : Compile for BusyBox .PP \-h : Display help and exit .SH ENVIRONMENT VARIABLES .PP CC : C compiler command \f[C][cc]\f[] .PP CFLAGS : C compiler flags \f[C][none]\f[] .PP LDFLAGS : Linker flags \f[C][none]\f[] .SH EXAMPLES .PP Compile a script which can be run on other systems with the trace option enabled (without \f[C]\-U\f[] flag): .IP .nf \f[C] shc\ \-f\ myscript\ \-o\ mybinary \f[] .fi .PP Compile an untraceable binary: .IP .nf \f[C] shc\ \-Uf\ myscript\ \-o\ mybinary \f[] .fi .PP Compile an untraceable binary that doesn\[aq]t require root access (experimental): .IP .nf \f[C] shc\ \-Hf\ myscript\ \-o\ mybinary \f[] .fi .SH LIMITATIONS .PP The maximum size of the script that could be executed once compiled is limited by the operating system configuration parameter \f[C]_SC_ARG_MAX\f[] (see sysconf(2)) .SH AUTHORS .PP Francisco Rosales .PP intika .PP Md Jahidul Hamid .SH REPORT BUGS TO .PP shc-4.0.3/src/000077500000000000000000000000001350643326400130705ustar00rootroot00000000000000shc-4.0.3/src/Makefile.am000066400000000000000000000001271350643326400151240ustar00rootroot00000000000000bin_PROGRAMS = shc shc_SOURCES = shc.c check: shc $(srcdir)/../test/ttest.sh ./shc shc-4.0.3/src/Makefile.in000066400000000000000000000416241350643326400151440ustar00rootroot00000000000000# Makefile.in generated by automake 1.16.1 from Makefile.am. # @configure_input@ # Copyright (C) 1994-2018 Free Software Foundation, Inc. # This Makefile.in is free software; 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Allen) * Newsgroups: comp.lang.c * Subject: Shrink this C code for fame and fun * Date: 21 May 1996 10:49:37 -0400 * And it is licensed also under GPL. * *That's where I got it, now I am going to do some work on it *It will reside here: http://github.com/neurobin/shc */ static const char my_name[] = "shc"; static const char version[] = "Version 4.0.3"; static const char subject[] = "Generic Shell Script Compiler"; static const char cpright[] = "GNU GPL Version 3"; static const struct { const char * f, * s, * e; } provider = { "Md Jahidul", "Hamid", "" }; /* static const struct { const char * f, * s, * e; } author = { "Francisco", "Garcia", "" }; */ /*This is the original author who first came up with this*/ static const char * copying[] = { "Copying:", "", " This program is free software; you can redistribute it and/or modify", " it under the terms of the GNU General Public License as published by", " the Free Software Foundation; either version 3 of the License, or", " (at your option) any later version.", "", " This program is distributed in the hope that it will be useful,", " but WITHOUT ANY WARRANTY; without even the implied warranty of", " MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the", " GNU General Public License for more details.", "", " You should have received a copy of the GNU General Public License", " along with this program; if not, write to the Free Software", " @Neurobin, Dhaka, Bangladesh", "", " Report problems and questions to:http://github.com/neurobin/shc", "", 0}; static const char * abstract[] = { "Abstract:", "", " This tool generates a stripped binary executable version", " of the script specified at command line.", "", " Binary version will be saved with a .x extension by default.", " You can specify output file name too with [-o filname] option.", "", " You can specify expiration date [-e] too, after which binary will", " refuse to be executed, displaying \"[-m]\" instead.", "", " You can compile whatever interpreted script, but valid [-i], [-x]", " and [-l] options must be given.", "", 0}; static const char usage[] = "Usage: shc [-e date] [-m addr] [-i iopt] [-x cmnd] [-l lopt] [-o outfile] [-rvDSUHCABh] -f script"; static const char * help[] = { "", " -e %s Expiration date in dd/mm/yyyy format [none]", " -m %s Message to display upon expiration [\"Please contact your provider\"]", " -f %s File name of the script to compile", " -i %s Inline option for the shell interpreter i.e: -e", " -x %s eXec command, as a printf format i.e: exec('%s',@ARGV);", " -l %s Last shell option i.e: --", " -o %s output filename", " -r Relax security. Make a redistributable binary", " -v Verbose compilation", " -S Switch ON setuid for root callable programs [OFF]", " -D Switch ON debug exec calls [OFF]", " -U Make binary untraceable [no]", " -H Hardening : extra security protection [no]", " Require bourne shell (sh) and parameters are not supported", " -C Display license and exit", " -A Display abstract and exit", " -B Compile for busybox", " -h Display help and exit", "", " Environment variables used:", " Name Default Usage", " CC cc C compiler command", " CFLAGS C compiler flags", " LDFLAGS Linker flags", "", " Please consult the shc man page.", "", 0}; #include #include #include #include #include #include #include #include #include #include #include #include #include #define SIZE 4096 static char * file; static char * file2; static char date[21]; static char * mail = "Please contact your provider jahidulhamid@yahoo.com"; static char rlax[1]; static char * shll; static char * inlo; static char * xecc; static char * lsto; static char * opts; static char * text; static int verbose; static const char SETUID_line[] = "#define SETUID %d /* Define as 1 to call setuid(0) at start of script */\n"; static int SETUID_flag = 0; static const char DEBUGEXEC_line[] = "#define DEBUGEXEC %d /* Define as 1 to debug execvp calls */\n"; static int DEBUGEXEC_flag = 0; static const char TRACEABLE_line[] = "#define TRACEABLE %d /* Define as 1 to enable ptrace the executable */\n"; static int TRACEABLE_flag = 1; static const char HARDENING_line[] = "#define HARDENING %d /* Define as 1 to disable ptrace/dump the executable */\n"; static int HARDENING_flag = 0; static const char BUSYBOXON_line[] = "#define BUSYBOXON %d /* Define as 1 to enable work with busybox */\n"; static int BUSYBOXON_flag = 0; static const char * RTC[] = { "", "#if HARDENING", "static const char * shc_x[] = {", "\"/*\",", "\" * Copyright 2019 - Intika \",", "\" * Replace ******** with secret read from fd 21\",", "\" * Also change arguments location of sub commands (sh script commands)\",", "\" * gcc -Wall -fpic -shared -o shc_secret.so shc_secret.c -ldl\",", "\" */\",", "\"\",", "\"#define _GNU_SOURCE /* needed to get RTLD_NEXT defined in dlfcn.h */\",", "\"#define PLACEHOLDER \\\"********\\\"\",", "\"#include \",", "\"#include \",", "\"#include \",", "\"#include \",", "\"#include \",", "\"#include \",", "\"\",", "\"static char secret[128000]; //max size\",", "\"typedef int (*pfi)(int, char **, char **);\",", "\"static pfi real_main;\",", "\"\",", "\"// copy argv to new location\",", "\"char **copyargs(int argc, char** argv){\",", "\" char **newargv = malloc((argc+1)*sizeof(*argv));\",", "\" char *from,*to;\",", "\" int i,len;\",", "\"\",", "\" for(i = 0; i 0) {\",", "\" int i;\",", "\"\",", "\" if (secret[n - 1] == '\\\\n') secret[--n] = '\\\\0';\",", "\" for (i = 1; i < argc; i++)\",", "\" if (strcmp(argv[i], PLACEHOLDER) == 0)\",", "\" argv[i] = secret;\",", "\" }\",", "\"\",", "\" real_main = main;\",", "\"\",", "\" return real___libc_start_main(mymain, argc, argv, init, fini, rtld_fini, stack_end);\",", "\"}\",", "\"\",", "0};", "#endif /* HARDENING */", "", "/* rtc.c */", "", "#include ", "#include ", "", "#include ", "#include ", "#include ", "#include ", "#include ", "#include ", "", "/* 'Alleged RC4' */", "", "static unsigned char stte[256], indx, jndx, kndx;", "", "/*", " * Reset arc4 stte. ", " */", "void stte_0(void)", "{", " indx = jndx = kndx = 0;", " do {", " stte[indx] = indx;", " } while (++indx);", "}", "", "/*", " * Set key. Can be used more than once. ", " */", "void key(void * str, int len)", "{", " unsigned char tmp, * ptr = (unsigned char *)str;", " while (len > 0) {", " do {", " tmp = stte[indx];", " kndx += tmp;", " kndx += ptr[(int)indx % len];", " stte[indx] = stte[kndx];", " stte[kndx] = tmp;", " } while (++indx);", " ptr += 256;", " len -= 256;", " }", "}", "", "/*", " * Crypt data. ", " */", "void arc4(void * str, int len)", "{", " unsigned char tmp, * ptr = (unsigned char *)str;", " while (len > 0) {", " indx++;", " tmp = stte[indx];", " jndx += tmp;", " stte[indx] = stte[jndx];", " stte[jndx] = tmp;", " tmp += stte[indx];", " *ptr ^= stte[tmp];", " ptr++;", " len--;", " }", "}", "", "/* End of ARC4 */", "", "#if HARDENING", "", "#include ", "#include ", "#include ", "#include ", "#define PR_SET_PTRACER 0x59616d61", "", "/* Seccomp Sandboxing Init */", "#include ", "#include ", "#include ", "#include ", "#include ", "#include ", "", "#include ", "#include ", "#include ", "#include ", "", "#include ", "#include ", "#include ", "", "#define ArchField offsetof(struct seccomp_data, arch)", "", "#define Allow(syscall) \\", " BPF_JUMP(BPF_JMP+BPF_JEQ+BPF_K, SYS_##syscall, 0, 1), \\", " BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW)", "", "struct sock_filter filter[] = {", " /* validate arch */", " BPF_STMT(BPF_LD+BPF_W+BPF_ABS, ArchField),", " BPF_JUMP( BPF_JMP+BPF_JEQ+BPF_K, AUDIT_ARCH_X86_64, 1, 0),", " BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_KILL),", "", " /* load syscall */", " BPF_STMT(BPF_LD+BPF_W+BPF_ABS, offsetof(struct seccomp_data, nr)),", "", " /* list of allowed syscalls */", " Allow(exit_group), /* exits a process */", " Allow(brk), /* for malloc(), inside libc */", " Allow(mmap), /* also for malloc() */", " Allow(munmap), /* for free(), inside libc */", "", " /* and if we don't match above, die */", " BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_KILL),", "};", "struct sock_fprog filterprog = {", " .len = sizeof(filter)/sizeof(filter[0]),", " .filter = filter", "};", "", "/* Seccomp Sandboxing - Set up the restricted environment */", "void seccomp_hardening() {", " if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {", " perror(\"Could not start seccomp:\");", " exit(1);", " }", " if (prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &filterprog) == -1) {", " perror(\"Could not start seccomp:\");", " exit(1);", " }", "} ", "/* End Seccomp Sandboxing Init */", "", "void shc_x_file() {", " FILE *fp;", " int line = 0;", "", " if ((fp = fopen(\"/tmp/shc_x.c\", \"w\")) == NULL ) {exit(1); exit(1);}", " for (line = 0; shc_x[line]; line++) fprintf(fp, \"%s\\n\", shc_x[line]);", " fflush(fp);fclose(fp);", "}", "", "int make() {", " char * cc, * cflags, * ldflags;", " char cmd[4096];", "", " cc = getenv(\"CC\");", " if (!cc) cc = \"cc\";", "", " sprintf(cmd, \"%s %s -o %s %s\", cc, \"-Wall -fpic -shared\", \"/tmp/shc_x.so\", \"/tmp/shc_x.c -ldl\");", " if (system(cmd)) {remove(\"/tmp/shc_x.c\"); return -1;}", " remove(\"/tmp/shc_x.c\"); return 0;", "}", "", "void arc4_hardrun(void * str, int len) {", " //Decode locally", " char tmp2[len];", " char tmp3[len+1024];", " memcpy(tmp2, str, len);", "", " unsigned char tmp, * ptr = (unsigned char *)tmp2;", " int lentmp = len;", " int pid, status;", " pid = fork();", "", " shc_x_file();", " if (make()) {exit(1);}", "", " setenv(\"LD_PRELOAD\",\"/tmp/shc_x.so\",1);", "", " if(pid==0) {", "", " //Start tracing to protect from dump & trace", " if (ptrace(PTRACE_TRACEME, 0, 0, 0) < 0) {", " kill(getpid(), SIGKILL);", " _exit(1);", " }", "", " //Decode Bash", " while (len > 0) {", " indx++;", " tmp = stte[indx];", " jndx += tmp;", " stte[indx] = stte[jndx];", " stte[jndx] = tmp;", " tmp += stte[indx];", " *ptr ^= stte[tmp];", " ptr++;", " len--;", " }", "", " //Do the magic", " sprintf(tmp3, \"%s %s\", \"'********' 21<<<\", tmp2);", "", " //Exec bash script //fork execl with 'sh -c'", " system(tmp2);", "", " //Empty script variable", " memcpy(tmp2, str, lentmp);", "", " //Clean temp", " remove(\"/tmp/shc_x.so\");", "", " //Sinal to detach ptrace", " ptrace(PTRACE_DETACH, 0, 0, 0);", " exit(0);", " }", " else {wait(&status);}", "", " /* Seccomp Sandboxing - Start */", " seccomp_hardening();", "", " exit(0);", "}", "#endif /* HARDENING */", "", "/*", " * Key with file invariants. ", " */", "int key_with_file(char * file)", "{", " struct stat statf[1];", " struct stat control[1];", "", " if (stat(file, statf) < 0)", " return -1;", "", " /* Turn on stable fields */", " memset(control, 0, sizeof(control));", " control->st_ino = statf->st_ino;", " control->st_dev = statf->st_dev;", " control->st_rdev = statf->st_rdev;", " control->st_uid = statf->st_uid;", " control->st_gid = statf->st_gid;", " control->st_size = statf->st_size;", " control->st_mtime = statf->st_mtime;", " control->st_ctime = statf->st_ctime;", " key(control, sizeof(control));", " return 0;", "}", "", "#if DEBUGEXEC", "void debugexec(char * sh11, int argc, char ** argv)", "{", " int i;", " fprintf(stderr, \"shll=%s\\n\", sh11 ? sh11 : \"\");", " fprintf(stderr, \"argc=%d\\n\", argc);", " if (!argv) {", " fprintf(stderr, \"argv=\\n\");", " } else { ", " for (i = 0; i <= argc ; i++)", " fprintf(stderr, \"argv[%d]=%.60s\\n\", i, argv[i] ? argv[i] : \"\");", " }", "}", "#endif /* DEBUGEXEC */", "", "void rmarg(char ** argv, char * arg)", "{", " for (; argv && *argv && *argv != arg; argv++);", " for (; argv && *argv; argv++)", " *argv = argv[1];", "}", "", "void chkenv_end(void);", "", "int chkenv(int argc)", "{", " char buff[512];", " unsigned long mask, m;", " int l, a, c;", " char * string;", " extern char ** environ;", "", " mask = (unsigned long)getpid();", " stte_0();", " key(&chkenv, (void*)&chkenv_end - (void*)&chkenv);", " key(&data, sizeof(data));", " key(&mask, sizeof(mask));", " arc4(&mask, sizeof(mask));", " sprintf(buff, \"x%lx\", mask);", " string = getenv(buff);", "#if DEBUGEXEC", " fprintf(stderr, \"getenv(%s)=%s\\n\", buff, string ? string : \"\");", "#endif", " l = strlen(buff);", " if (!string) {", " /* 1st */", " sprintf(&buff[l], \"=%lu %d\", mask, argc);", " putenv(strdup(buff));", " return 0;", " }", " c = sscanf(string, \"%lu %d%c\", &m, &a, buff);", " if (c == 2 && m == mask) {", " /* 3rd */", " rmarg(environ, &string[-l - 1]);", " return 1 + (argc - a);", " }", " return -1;", "}", "", "void chkenv_end(void){}", "", "#if HARDENING", "", "static void gets_process_name(const pid_t pid, char * name) {", " char procfile[BUFSIZ];", " sprintf(procfile, \"/proc/%d/cmdline\", pid);", " FILE* f = fopen(procfile, \"r\");", " if (f) {", " size_t size;", " size = fread(name, sizeof (char), sizeof (procfile), f);", " if (size > 0) {", " if ('\\n' == name[size - 1])", " name[size - 1] = '\\0';", " }", " fclose(f);", " }", "}", "", "void hardening() {", " prctl(PR_SET_DUMPABLE, 0);", " prctl(PR_SET_PTRACER, -1);", "", " int pid = getppid();", " char name[256] = {0};", " gets_process_name(pid, name);", "", " if ( (strcmp(name, \"bash\") != 0) ", " && (strcmp(name, \"/bin/bash\") != 0) ", " && (strcmp(name, \"sh\") != 0) ", " && (strcmp(name, \"/bin/sh\") != 0) ", " && (strcmp(name, \"sudo\") != 0) ", " && (strcmp(name, \"/bin/sudo\") != 0) ", " && (strcmp(name, \"/usr/bin/sudo\") != 0)", " && (strcmp(name, \"gksudo\") != 0) ", " && (strcmp(name, \"/bin/gksudo\") != 0) ", " && (strcmp(name, \"/usr/bin/gksudo\") != 0) ", " && (strcmp(name, \"kdesu\") != 0) ", " && (strcmp(name, \"/bin/kdesu\") != 0) ", " && (strcmp(name, \"/usr/bin/kdesu\") != 0) ", " )", " {", " printf(\"Operation not permitted\\n\");", " kill(getpid(), SIGKILL);", " exit(1);", " }", "}", "", "#endif /* HARDENING */", "", "#if !TRACEABLE", "", "#define _LINUX_SOURCE_COMPAT", "#include ", "#include ", "#include ", "#include ", "#include ", "#include ", "#include ", "", "#if !defined(PT_ATTACHEXC) /* New replacement for PT_ATTACH */", " #if !defined(PTRACE_ATTACH) && defined(PT_ATTACH)", " #define PT_ATTACHEXC PT_ATTACH", " #elif defined(PTRACE_ATTACH)", " #define PT_ATTACHEXC PTRACE_ATTACH", " #endif", "#endif", "", "void untraceable(char * argv0)", "{", " char proc[80];", " int pid, mine;", "", " switch(pid = fork()) {", " case 0:", " pid = getppid();", " /* For problematic SunOS ptrace */", "#if defined(__FreeBSD__)", " sprintf(proc, \"/proc/%d/mem\", (int)pid);", "#else", " sprintf(proc, \"/proc/%d/as\", (int)pid);", "#endif", " close(0);", " mine = !open(proc, O_RDWR|O_EXCL);", " if (!mine && errno != EBUSY)", " mine = !ptrace(PT_ATTACHEXC, pid, 0, 0);", " if (mine) {", " kill(pid, SIGCONT);", " } else {", /*" fprintf(stderr, \"%s is being traced!\\n\", argv0);",*/ " perror(argv0);", " kill(pid, SIGKILL);", " }", " _exit(mine);", " case -1:", " break;", " default:", " if (pid == waitpid(pid, 0, 0))", " return;", " }", " perror(argv0);", " _exit(1);", "}", "#endif /* !TRACEABLE */", "", "char * xsh(int argc, char ** argv)", "{", " char * scrpt;", " int ret, i, j;", " char ** varg;", " char * me = argv[0];", " if (me == NULL) { me = getenv(\"_\"); }", " if (me == 0) { fprintf(stderr, \"E: neither argv[0] nor $_ works.\"); exit(1); }", "", " ret = chkenv(argc);", " stte_0();", " key(pswd, pswd_z);", " arc4(msg1, msg1_z);", " arc4(date, date_z);", " if (date[0] && (atoll(date) 1) ? ret : 0; /* Args numbering correction */", " while (i < argc)", " varg[j++] = argv[i++]; /* Main run-time arguments */", " varg[j] = 0; /* NULL terminated array */", "#if DEBUGEXEC", " debugexec(shll, j, varg);", "#endif", " execvp(shll, varg);", " return shll;", "}", "", "int main(int argc, char ** argv)", "{", "#if SETUID", " setuid(0);", "#endif", "#if DEBUGEXEC", " debugexec(\"main\", argc, argv);", "#endif", "#if HARDENING", " hardening();", "#endif", "#if !TRACEABLE", " untraceable(argv[0]);", "#endif", " argv[1] = xsh(argc, argv);", " fprintf(stderr, \"%s%s%s: %s\\n\", argv[0],", " errno ? \": \" : \"\",", " errno ? strerror(errno) : \"\",", " argv[1] ? argv[1] : \"\"", " );", " return 1;", "}", 0}; static int parse_an_arg(int argc, char * argv[]) { extern char * optarg; const char * opts = "e:m:f:i:x:l:o:rvDSUHCABh"; struct tm tmp[1]; time_t expdate; int cnt, l; char ctrl; switch (getopt(argc, argv, opts)) { case 'e': memset(tmp, 0, sizeof(tmp)); cnt = sscanf(optarg, "%2d/%2d/%4d%c", &tmp->tm_mday, &tmp->tm_mon, &tmp->tm_year, &ctrl); if (cnt == 3) { tmp->tm_mon--; tmp->tm_year -= 1900; expdate = mktime(tmp); } if (cnt != 3 || expdate <= 0) { fprintf(stderr, "%s parse(-e %s): Not a valid value\n", my_name, optarg); return -1; } sprintf(date, "%lld", (long long)expdate); if (verbose) fprintf(stderr, "%s -e %s", my_name, ctime(&expdate)); expdate = atoll(date); if (verbose) fprintf(stderr, "%s -e %s", my_name, ctime(&expdate)); break; case 'm': mail = optarg; break; case 'f': if (file) { fprintf(stderr, "%s parse(-f): Specified more than once\n", my_name); return -1; } file = optarg; break; case 'i': inlo = optarg; break; case 'x': xecc = optarg; break; case 'l': lsto = optarg; break; case 'o': file2 = optarg; break; case 'r': rlax[0]++; break; case 'v': verbose++; break; case 'S': SETUID_flag = 1; break; case 'D': DEBUGEXEC_flag = 1; break; case 'U': TRACEABLE_flag = 0; break; case 'H': HARDENING_flag = 1; break; case 'C': fprintf(stderr, "%s %s, %s\n", my_name, version, subject); fprintf(stderr, "%s %s %s %s %s\n", my_name, cpright, provider.f, provider.s, provider.e); fprintf(stderr, "%s ", my_name); for (l = 0; copying[l]; l++) fprintf(stderr, "%s\n", copying[l]); fprintf(stderr, " %s %s %s\n\n", provider.f, provider.s, provider.e); exit(0); break; case 'A': fprintf(stderr, "%s %s, %s\n", my_name, version, subject); fprintf(stderr, "%s %s %s %s %s\n", my_name, cpright, provider.f, provider.s, provider.e); fprintf(stderr, "%s ", my_name); for (l = 0; abstract[l]; l++) fprintf(stderr, "%s\n", abstract[l]); exit(0); break; case 'h': fprintf(stderr, "%s %s, %s\n", my_name, version, subject); fprintf(stderr, "%s %s %s %s %s\n", my_name, cpright, provider.f, provider.s, provider.e); fprintf(stderr, "%s %s\n", my_name, usage); for (l = 0; help[l]; l++) fprintf(stderr, "%s\n", help[l]); exit(0); break; case -1: if (!file) { fprintf(stderr, "%s parse(-f): No source file specified\n", my_name); file = ""; return -1; } return 0; case 'B': BUSYBOXON_flag = 1; break; case ':': fprintf(stderr, "%s parse: Missing parameter\n", my_name); return -1; case '?': fprintf(stderr, "%s parse: Unknown option\n", my_name); return -1; default: fprintf(stderr, "%s parse: Unknown return\n", my_name); return -1; } return 1; } static void parse_args(int argc, char * argv[]) { int err = 0; int ret; #if 0 my_name = strrchr(argv[0], '/'); if (my_name) my_name++; else my_name = argv[0]; #endif do { ret = parse_an_arg(argc, argv); if (ret == -1) err++; } while (ret); if (err) { fprintf(stderr, "\n%s %s\n\n", my_name, usage); exit(1); } } /* 'Alleged RC4' */ static unsigned char stte[256], indx, jndx, kndx; /* * Reset arc4 stte. */ void stte_0(void) { indx = jndx = kndx = 0; do { stte[indx] = indx; } while (++indx); } /* * Set key. Can be used more than once. */ void key(void * str, int len) { unsigned char tmp, * ptr = (unsigned char *)str; while (len > 0) { do { tmp = stte[indx]; kndx += tmp; kndx += ptr[(int)indx % len]; stte[indx] = stte[kndx]; stte[kndx] = tmp; } while (++indx); ptr += 256; len -= 256; } } /* * Crypt data. */ void arc4(void * str, int len) { unsigned char tmp, * ptr = (unsigned char *)str; while (len > 0) { indx++; tmp = stte[indx]; jndx += tmp; stte[indx] = stte[jndx]; stte[jndx] = tmp; tmp += stte[indx]; *ptr ^= stte[tmp]; ptr++; len--; } } /* End of ARC4 */ /* * Key with file invariants. */ int key_with_file(char * file) { struct stat statf[1]; struct stat control[1]; if (stat(file, statf) < 0) return -1; /* Turn on stable fields */ memset(control, 0, sizeof(control)); control->st_ino = statf->st_ino; control->st_dev = statf->st_dev; control->st_rdev = statf->st_rdev; control->st_uid = statf->st_uid; control->st_gid = statf->st_gid; control->st_size = statf->st_size; control->st_mtime = statf->st_mtime; control->st_ctime = statf->st_ctime; key(control, sizeof(control)); return 0; } /* * NVI stands for Shells that complaint "Not Valid Identifier" on * environment variables with characters as "=|#:*?$ ". */ struct { char * shll; char * inlo; char * lsto; char * xecc; } shellsDB[] = { { "perl", "-e", "--", "exec('%s',@ARGV);" }, { "rc", "-c", "", "builtin exec %s $*" }, { "sh", "-c", "", "exec '%s' \"$@\"" }, /* IRIX_nvi */ { "dash", "-c", "", "exec '%s' \"$@\"" }, { "bash", "-c", "", "exec '%s' \"$@\"" }, { "zsh", "-c", "", "exec '%s' \"$@\"" }, { "bsh", "-c", "", "exec '%s' \"$@\"" }, /* AIX_nvi */ { "Rsh", "-c", "", "exec '%s' \"$@\"" }, /* AIX_nvi */ { "ksh", "-c", "", "exec '%s' \"$@\"" }, /* OK on Solaris, AIX and Linux (THX ) */ { "tsh", "-c", "--", "exec '%s' \"$@\"" }, /* AIX */ { "ash", "-c", "--", "exec '%s' \"$@\"" }, /* Linux */ { "csh", "-c", "-b", "exec '%s' $argv" }, /* AIX: No file for $0 */ { "tcsh", "-c", "-b", "exec '%s' $argv" }, { NULL, NULL, NULL, NULL }, }; int eval_shell(char * text) { int i; char * ptr; ptr = strchr(text, (int)'\n'); if (!ptr) i = strlen(text); else i = ptr - text; ptr = malloc(i + 1); shll = malloc(i + 1); opts = malloc(i + 1); if (!ptr || !shll || !opts) return -1; strncpy(ptr, text, i); ptr[i] = '\0'; *opts = '\0'; i = sscanf(ptr, " #!%s%s %c", shll, opts, opts); if (i < 1 || i > 2) { fprintf(stderr, "%s: invalid first line in script: %s\n", my_name, ptr); return -1; } free(ptr); shll = realloc(shll, strlen(shll) + 1); ptr = strrchr(shll, (int)'/'); if (!ptr) { fprintf(stderr, "%s: invalid shll\n", my_name); return -1; } if (*ptr == '/') ptr++; if (verbose) fprintf(stderr, "%s shll=%s\n", my_name, ptr); for(i=0; shellsDB[i].shll; i++) { if(!strcmp(ptr, shellsDB[i].shll)) { if (!inlo) inlo = strdup(shellsDB[i].inlo); if (!xecc) xecc = strdup(shellsDB[i].xecc); if (!lsto) lsto = strdup(shellsDB[i].lsto); } } if (!inlo || !xecc || !lsto) { fprintf(stderr, "%s Unknown shell (%s): specify [-i][-x][-l]\n", my_name, ptr); return -1; } if (verbose) fprintf(stderr, "%s [-i]=%s\n", my_name, inlo); if (verbose) fprintf(stderr, "%s [-x]=%s\n", my_name, xecc); if (verbose) fprintf(stderr, "%s [-l]=%s\n", my_name, lsto); opts = realloc(opts, strlen(opts) + 1); if (*opts && !strcmp(opts, lsto)) { fprintf(stderr, "%s opts=%s : Is equal to [-l]. Removing opts\n", my_name, opts); *opts = '\0'; } else if (!strcmp(opts, "-")) { fprintf(stderr, "%s opts=%s : No real one. Removing opts\n", my_name, opts); *opts = '\0'; } if (verbose) fprintf(stderr, "%s opts=%s\n", my_name, opts); return 0; } char * read_script(char * file) { FILE * i; char * text; int cnt, l; text = malloc(SIZE); if (!text) return NULL; i = fopen(file, "r"); if (!i) return NULL; for (l = 0;;) { text = realloc(text, l + SIZE); if (!text) return NULL; cnt = fread(&text[l], 1, SIZE, i); if (!cnt) break; l += cnt; } fclose(i); text = realloc(text, l + 1); if (!text) return NULL; text[l] = '\0'; /* Check current System ARG_MAX limit. */ if (l > 0.80 * (cnt = sysconf(_SC_ARG_MAX))) { fprintf(stderr, "%s: WARNING!!\n" " Scripts of length near to (or higher than) the current System limit on\n" " \"maximum size of arguments to EXEC\", could comprise its binary execution.\n" " In the current System the call sysconf(_SC_ARG_MAX) returns %d bytes\n" " and your script \"%s\" is %d bytes length.\n", my_name, cnt, file, l); } return text; } unsigned rand_mod(unsigned mod) { /* Without skew */ unsigned rnd, top = RAND_MAX; top -= top % mod; while (top <= (rnd = rand())) continue; /* Using high-order bits. */ rnd = 1.0*mod*rnd/(1.0+top); return rnd; } char rand_chr(void) { return (char)rand_mod(1<<(sizeof(char)<<3)); } int noise(char * ptr, unsigned min, unsigned xtra, int str) { if (xtra) xtra = rand_mod(xtra); xtra += min; for (min = 0; min < xtra; min++, ptr++) do *ptr = rand_chr(); while (str && !isalnum((int)*ptr)); if (str) *ptr = '\0'; return xtra; } static int offset; void prnt_bytes(FILE * o, char * ptr, int m, int l, int n) { int i; l += m; n += l; for (i = 0; i < n; i++) { if ((i & 0xf) == 0) fprintf(o, "\n\t\""); fprintf(o, "\\%03o", (unsigned char)((i>=m) && (i=0) {prnt_array(o, msg1, "msg1", msg1_z, 0); msg1_z=done=-1; break;} case 2: if (date_z>=0) {prnt_array(o, date, "date", date_z, 0); date_z=done=-1; break;} case 3: if (shll_z>=0) {prnt_array(o, shll, "shll", shll_z, 0); shll_z=done=-1; break;} case 4: if (inlo_z>=0) {prnt_array(o, inlo, "inlo", inlo_z, 0); inlo_z=done=-1; break;} case 5: if (xecc_z>=0) {prnt_array(o, xecc, "xecc", xecc_z, 0); xecc_z=done=-1; break;} case 6: if (lsto_z>=0) {prnt_array(o, lsto, "lsto", lsto_z, 0); lsto_z=done=-1; break;} case 7: if (tst1_z>=0) {prnt_array(o, tst1, "tst1", tst1_z, 0); tst1_z=done=-1; break;} case 8: if (chk1_z>=0) {prnt_array(o, chk1, "chk1", chk1_z, 0); chk1_z=done=-1; break;} case 9: if (msg2_z>=0) {prnt_array(o, msg2, "msg2", msg2_z, 0); msg2_z=done=-1; break;} case 10: if (rlax_z>=0) {prnt_array(o, rlax, "rlax", rlax_z, 0); rlax_z=done=-1; break;} case 11: if (opts_z>=0) {prnt_array(o, opts, "opts", opts_z, 0); opts_z=done=-1; break;} case 12: if (text_z>=0) {prnt_array(o, text, "text", text_z, 0); text_z=done=-1; break;} case 13: if (tst2_z>=0) {prnt_array(o, tst2, "tst2", tst2_z, 0); tst2_z=done=-1; break;} case 14: if (chk2_z>=0) {prnt_array(o, chk2, "chk2", chk2_z, 0); chk2_z=done=-1; break;} } indx = 0; } while (!done); } while (numd+=done); fprintf(o, "/* End of data[] */;\n"); fprintf(o, "#define %s_z %d\n", "hide", 1<<12); fprintf(o, SETUID_line, SETUID_flag); fprintf(o, DEBUGEXEC_line, DEBUGEXEC_flag); fprintf(o, TRACEABLE_line, TRACEABLE_flag); fprintf(o, HARDENING_line, HARDENING_flag); fprintf(o, BUSYBOXON_line, BUSYBOXON_flag); for (indx = 0; RTC[indx]; indx++) fprintf(o, "%s\n", RTC[indx]); fflush(o); fclose(o); return 0; } int make(void) { char * cc, * cflags, * ldflags; char cmd[SIZE]; cc = getenv("CC"); if (!cc) cc = "cc"; cflags = getenv("CFLAGS"); if (!cflags) cflags = ""; ldflags = getenv("LDFLAGS"); if (!ldflags) ldflags = ""; if(!file2){ file2=(char*)realloc(file2,strlen(file)+3); strcpy(file2,file); file2=strcat(file2,".x"); } sprintf(cmd, "%s %s %s %s.x.c -o %s", cc, cflags, ldflags, file, file2); if (verbose) fprintf(stderr, "%s: %s\n", my_name, cmd); if (system(cmd)) return -1; sprintf(cmd, "strip %s", file2); if (verbose) fprintf(stderr, "%s: %s\n", my_name, cmd); if (system(cmd)) fprintf(stderr, "%s: never mind\n", my_name); sprintf(cmd, "chmod ug=rwx,o=rx %s", file2); if (verbose) fprintf(stderr, "%s: %s\n", my_name, cmd); if (system(cmd)) fprintf(stderr, "%s: remove read permission\n", my_name); return 0; } void do_all(int argc, char * argv[]) { parse_args(argc, argv); text = read_script(file); if (!text) return; if (eval_shell(text)) return; if (write_C(file, argv)) return; if (make()) return; exit(0); } int main(int argc, char * argv[]) { putenv("LANG="); do_all(argc, argv); /* Return on error */ perror(argv[0]); exit(1); return 1; } shc-4.0.3/test/000077500000000000000000000000001350643326400132605ustar00rootroot00000000000000shc-4.0.3/test/match000066400000000000000000000005201350643326400142740ustar00rootroot00000000000000#!/bin/sh # # File search script by # Usage: match [Filename] # IFS=":$IFS" for substring in $@ do for path in $PATH do for command in $path/*$substring* do if [ -f $command ] then echo $command fi done done done # Added echo "[$$] PAUSED... Hit return!" read DUMMY shc-4.0.3/test/pru.sh000066400000000000000000000002321350643326400144170ustar00rootroot00000000000000#!/bin/sh -x echo "$0" "$@" ps $$ ps wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww $$ cat /proc/$$/cmdline touch $0.kk read ENTER shc-4.0.3/test/test.bash000066400000000000000000000002201350643326400150700ustar00rootroot00000000000000#!/bin/bash echo "\$@ is $@" echo "command line: $0 $*" echo "hello world" # Added #~ echo "[$$] PAUSED... Hit return!" #~ read DUMMY #~ exit 0 shc-4.0.3/test/test.csh000077500000000000000000000000611350643326400147360ustar00rootroot00000000000000#!/bin/csh echo Hello world # A comment exit 0 shc-4.0.3/test/test.ksh000066400000000000000000000002151350643326400147440ustar00rootroot00000000000000#!/usr/bin/ksh -x echo "\$@ is $@" echo "command line: $0 $*" echo "hello world" # Added echo "[$$] PAUSED... Hit return!" read DUMMY exit 0 shc-4.0.3/test/testc.txt000066400000000000000000000002051350643326400151400ustar00rootroot00000000000000 printf("-----------\n"); printf("%s\n", shll); for(i=0;i "$tmpf" "$shc" $opt -f "$tmpf" -o "$tmpd/a.out" out=$("$tmpd/a.out" first second) #~ echo " Output: $out" if [[ "$out" = 'Hello World fp:first sp:second' ]]; then echo "====================================================" echo -e "=== $shell [with shc $opt]: ${txtgrn}PASSED${txtrst}" echo "====================================================" ((pc++)) else echo "====================================================" echo -e "=== $shell [with shc $opt]: ${txtred}FAILED${txtrst}" echo "====================================================" stat=1 ((fc++)) fi rm -r "$tmpd" done done echo echo "Test Summary" echo "------------" if ((pc>0)); then pt="${txtgrn}PASSED${txtrst}" else pt="PASSED" fi if ((fc>0)); then ft="${txtred}FAILED${txtrst}" else ft="FAILED" fi echo -e "$pt: $pc" echo -e "$ft: $fc" echo "------------" echo exit $stat