DaoDan

This RAT was created by a Chinese author called Lovejingtao. It is
written in Visual C++ and compressed wwith ASPack. Several variants
appeared from May 2000 to March 2002. The interface is written in
Chinese. The principle of such application is simple: the attacker infects
his victim via the e-mail or File and Print Sharing with a server
application. Once in the computer, the virus opens a default port TCP 25 and
awaits commands from the intruder. He can connect to the infected PC
via a client application.