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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

downloader.IWR

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:downloader.IWR
Technical name:Trj/Downloader.IWR
Threat level:Medium
Type:Worm
Effects:   It spreads and affects other computers.
Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:May 17, 2006
Detection updated on:May 17, 2006
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

downloader.IWR is a worm that spreads by copying itself, without infecting other files.

 

It affects productivity, preventing tasks from being carried out:

  • In the affected computer: it displays pop-up windows.
  • In the local network: it generates a large amount of network activity and consumes bandwidth.

 

It reduces the security level of the computer: it opens one or more ports to allow remote access to the computer and takes action that compromises user confidentiality.

 

downloader.IWR accesses several websites to download files, which it then runs. These can be any type of file, although they are normally malware.

 

downloader.IWR uses the following propagation or distribution methods:

  • Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
  • Via Internet, exploiting remote vulnerabilities: attacking random IP addresses, in which it tries to insert a copy of itself by exploiting one or more vulnerabilities.