Today, Trustwave researchers have disclosed their findings on a novel Windows malware sample that uses Internet Control Message Protocol (ICMP) for its command-and-control (C2) activities. Dubbed ...

For many network administrators, they consider the Internet Control Message Protocol (ICMP) a security risk, and therefore as a security measure, should have ICMP always be blocked at the firewall.

The side channel in this case is the rate limit for ICMP, the abbreviation for the Internet Control Message Protocol. To conserve bandwidth and computing resources, servers will respond to only a ...

This article provides an exploration of the key Linux networking protocols: TCP (Transmission Control Protocol), UDP (User Datagram Protocol), and ICMP (Internet Control Message Protocol). We will ...