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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Blaster.gen

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Blaster.gen
Technical name:W32/Blaster.gen.worm
Threat level:Low
Type:Worm
Effects:  It exploits the RPC DCOM vulnerability in order to spread to other computers.

Affected platforms:

Windows XP/2000/NT

First detected on:Aug. 14, 2003
Detection updated on:Jan. 3, 2007
StatisticsNo

Brief Description 

    

Blaster.gen is not a worm, but a generic detection for future variants of the Blaster family. This group of worms have the following common characteristics:

  • It infects only Windows 2003/XP/2000/NT computers.
  • It exploits the Buffer Overrun in RPC Interface vulnerability to spread to as many computers as possible.
  • It spreads by attacking IP addresses generated at random and exploits the vulnerability mentioned above to download a copy of itself to the compromised computer. In order to do this, Blaster.gen incorporates its own TFTP (Trivial File Transfer Protocol) server.

If you have a Windows 2003/XP/2000/NT computer, it is highly recommendable to download the security patch from the Microsoft website. Click here to access the web page for downloading the patch.

Visible Symptoms 

    

A clear indication that Blaster.gen has reached the computer is that the network traffic increases on the TCP 135 and 4444 and UDP 69 ports.