Malware that listens for ICMP echo requests with a code of 1 and sends back a shell to that IP, and a FreeBSD kernel module that protects that listener/shell giver. This readme will be expanded later on.
libpcap, and the executable that you want to run on ping as /bin/ipfctl. stdin, out, and err are redirected from son to this executable.
To compile dad.ko, simply run make on a system with the FreeBSD kernel source tree of your choice in /usr/src. To compile son, run gcc -o son son.c -lpcap.