Shellcode techniques¶
When writing shellcode for Linux, system calls (syscalls) are used.
Best is to start with a basic shell, move onto egg hunters, reverse TCP shellcode, and finally, shellcode for 64-bit operating systems.
Resources¶
Counter moves¶
Linux shellcode turns a memory bug into execution. The platform mitigations, NX, ASLR, and the stack protector, are what blunt the jump. Seen from the other side, this sits in the blue notes on memory corruption and its limits.