DeadCow

Written in Visual C++. This hacker tool was designed to control user's
PC from a distant machine. The functions of this virus offer the
intruder the ability to download, remove and upload files, kill running
processes, etc. The hacker infects his victim's PC via the e-mail or
File and Print Sharing with a "server" application. This application opens a
default port and awaits commands from the attacker. The intruder
communicates with the "server" via a "client" application on his PC. The
origination date of this pest is March 2002.