Apply your patches and update your AV software.
Microsoft has issued advice on what you should know about Download.Ject
The Trojan downloader, also known as JS/Scob.A and Toofer, affects websites running Microsoft IIS 5.0 and has been found appended to files on those web servers. When executed, the Trojan attempts to connect to a page on a remote website - which, currently, is not available.
Posted on 25 June 2004 by Virus Bulletin.