i saw the new beta of cfosspeed and at the chang log this changing has been written: "cFosSpeed 3.23 build 1270 * cFosSpeed now has support to send ping messages from both usermore and kernelmode, named "hybrid ping". This should hopefully help with some firewalls that are difficult to configure or have problems with spd.exe sending ICMP messages. cFosSpeed will switch between usermode and kernel- mode ping at the beginning of a connection to ensure pings are coming through. " is this ping sending method a security issue for firewalls? and may any malware use this method for icmp or other protocol?