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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Autorun.JRZ

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Autorun.JRZ
Technical name:W32/Autorun.JRZ.worm
Threat level:Medium
Alias:Worm.Win32.AutoRun.fjx,
Type:Worm
Effects:   It spreads and affects other computers. It generates a large amount of network traffic activity with the consequent consumption of bandwidth. It uses stealth techniques to avoid being detected by the user. It does not spread automatically using its own means.
Affected platforms:

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

First detected on:Jan. 21, 2010
Detection updated on:Feb. 17, 2010
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Autorun.JRZ is a worm that spreads by copying itself, without infecting other files.

 

  • In the local network: it generates a large amount of network activity and consumes bandwidth.

 

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.
  • It injects itself in running processes.

 

Autorun.JRZ 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.
  • File infection: it infects different types of files, which are then distributed through any of the usual means: floppy disks, email messages with attachments, Internet download, files transferred via FTP, IRC channels, P2P file sharing networks, etc.