Small ICMP backdoor which works under BSD, Linux, and Solaris. Because you can define the icmp_code to use it is able simulate an echo_request <-> echo_reply conversation so it looks like a normal ping with bigger packets. It also includes a session_id to detect the right packets (which is also done by certain icmp_id's).
Small ICMP backdoor which works under BSD, Linux, and Solaris. Because you can define the icmp_code to use it is able simulate an echo_request <-> echo_reply conversation so it looks like a normal ping with bigger packets. It also includes a session_id to detect the right packets (which is also done by certain icmp_id's).