Backdoor.Cow Discovered on: February 13, 2002
Backdoor.Cow is backdoor Trojan that allows a hacker to control the computer. By default it opens port 2001. The existence of the file Syswindow.exe is a sign of possible infection. It is written in the Delphi programming language and is packed with UPX.
Also Known As: Backdoor.Cow [KAV]
Type: Trojan Horse
Infection Length: 166,400 bytes
Systems Affected: Windows 95, Windows 98, Windows NT, Windows 2000, Windows XP, Windows Me
Systems Not Affected: Windows 3.x, Macintosh, OS/2, UNIX, Linux

Backdoor.NetDevil.B Discovered on: December 27, 2002
Backdoor.NetDevil.B is a variant of Backdoor.NetDevil. The Trojan allows a hacker to remotely control the infected computer. The Trojan opens port 905 for listening.
Type: Trojan Horse
Infection Length: 311, 296 bytes
Systems Affected: Windows 95, Windows 98, Windows NT, Windows 2000, Windows XP, Windows Me
Systems Not Affected: Windows 3.x, Macintosh, OS/2, UNIX, Linux