BoFacil

This Remote administration Tool originated In March 1999. The author is
J.C. Febrero. The prime function of a RAT is allowing the intruder to
get unauthorised remote control over the infected computer. The attacker
embeds a "server" application on his victim's machine via the e-mail or
File and Print Sharing. The "server" opens a default port and awaits
hacker comands. He can connect via the "client" and control the
PC.