cursion 0: .section .text .globl _start _start: pushl $0x000080cd pushl $0x40c03180 pushl $0xcdc289e1 pushl $0x890a4654 pushl $0x57680000 pushl $0x0001bb00 pushl $0x000004b8 jmp *%esp recursion 1: .section .text .globl _start _start: pushl $0x000000e4 pushl $0xff000004 pushl $0xb8680001 pushl $0xbb006857 pushl $0x68000068 pushl $0x890a4654 pushl $0x68cdc289 pushl $0xe16840c0 pushl $0x31806800 pushl $0x0080cd68 jmp *%esp "cursion 0" and "recursion 1" are different looking, but equivalents in net code. this will eventually segfault due excessive stack use! Until so, This is a good obscufacer.