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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Autorun.AQZ

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Autorun.AQZ
Technical name:W32/Autorun.AQZ.worm
Threat level:Medium
Type:Virus
Subtype: Worm
Effects:   It spreads and affects other computers, and has damaging effects on the affected computer.
Affected platforms:

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

First detected on:Jan. 6, 2009
Detection updated on:Jan. 6, 2009
StatisticsNo

Brief Description 

    
Autorun.AQZ is a virus that also has the characteristics of a worm.
Autorun.AQZ gets into a computer via e-mail, the Internet, floppy disks, etc, and it spreads by inserting its code in other files and programs. Its effects can range from simply annoying to destructive.
Furthermore, due to its worm characteristics, Autorun.AQZ also spreads by sending out copies of itself. Its main objective is to collapse computers and networks, preventing users from working with the affected computer.

 

It captures certain information entered or saved by the user, with the corresponding threat to privacy: passwords saved by certain Windows services.

 

It reduces the security level of the computer: it terminates processes belonging to security tools, such as antivirus programs and firewalls, leaving the computer defenseless against attacks from other malware.

 

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

  • It deletes the original file from which it was run once it is installed on the computer.
  • It modifies system permissions in order to hide itself.

 

Autorun.AQZ 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.
  • Computer networks (mapped drives): it creates copies of itself in mapped drives.
  • Computer networks (shared resources): it creates copies of itself in shared network resources to which it has access.
  • 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.