This reference file includes detection for the W32.Blaster worm, along with DotWorlds.

Reference Number : 01R20813.08.2003
Internal build : 77
Total size : 506588 Bytes
Signature data size : 497021 Bytes
Reference data size : 9503 Bytes
Signatures total : 11444
Target categories : 10
Target families : 233

You are STRONGLY URGED to patch any computers running Microsoft Windows NT 4, Windows 2000, Windows XP, or Windows Server 2003 Operating Systems with the appropriate patch available at this location.

As always, use Webupdate to install the new referencefile, or download it manually from here.