Trojan.Popdis is a Trojan horse that modifies the registry keys and overwrites the Hosts file.
W32.Kotira is a virus that overwrites executable files.
W97M.Adren is a Microsoft Word Basic Macro virus that spreads using Normal.dot and other templates in the Office\Startup folder. This virus contains two modules, ANDRENALINE and DEFTONES.
W32.Maddis.B is a network-share worm that injects itself into various windows System processes. The worm will open several ports on an infected host. It also operates as a proxy and possibly a spam relay.
This threat is written in x86 Assembly and is packed with ASPack 2.12.