Beast is a
Windows-based
backdoor trojan horse, more commonly known in the
hacking community as a
Remote Administration Tool or a "RAT". It is capable of infecting versions of Windows from
95 to
XP. Written in
Delphi and released first by its author Tataye in 2002, it became quite popular due to its unique features. It used the typical
client–server model where the
client would be under operation by the attacker and the
server is what would infect the victim. Beast was one of the first trojans to feature a
reverse connection to its victims, and once established it gave the attacker complete control over the infected computer. The virus would be harmless until opened. When opened, the virus would use the
code injection method to inject itself into other applications.