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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Autorun.JWR

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Autorun.JWR
Technical name:W32/Autorun.JWR.worm
Threat level:Medium
Type:Worm
Effects:   It spreads and affects other computers. It uses the infected computer to take malicious actions on other users. It listens on open ports in order to allow remote access to the computer. It uses stealth techniques to avoid being detected by the user. It spreads , via email, via mapped drives.
Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95/3.X

First detected on:April 14, 2010
Detection updated on:April 14, 2010
StatisticsNo

Brief Description 

    

Autorun.JWR 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 converts the computer into a platform for taking malicious action surreptitiously: spam sending, launch of Denial of Service attacks, malware distribution, etc.

 

It reduces the security level of the computer: it listens on open ports in order to control the computer remotely.

 

It uses stealth techniques to avoid being detected by the user:

  • It uses techniques included in its code to hide itself while it is active.

 

Autorun.JWR 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.
  • Email: sending emails that include a copy of itself as an attachment. The computer is infected when the attachment is run.
  • Computer networks (mapped drives): it creates copies of itself in mapped drives.