Hands-On Red Team Tactics

ICMP

Internet Control Management Protocol (ICMP), which is also known as PING, is also known as PING, is another method that can be used as a C2 channel. Many administrators allow PING through the firewall so they can check whether the servers are alive or not. The C2 payloads can be added as padding to the ICMP headers, making it a unique C2 covert channel.

On the other hand, if the blue team detects our access, they can easily blacklist our C2 IPs forever and our C2s will be burned. However, this does not necessarily mean that we have to go through the whole installation and configuration procedure again.