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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Autorun.TZ

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Autorun.TZ
Technical name:W32/Autorun.TZ.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:April 25, 2008
Detection updated on:April 25, 2008
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    
Autorun.TZ is a virus that also has the characteristics of a worm.
Autorun.TZ 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.TZ 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: .

It sends the gathered information to a remote user by any available means: email, FTP, etc.

 

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 listens on open ports in order to control the computer remotely.

 

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

  • It terminates processes corresponding to several security tools, such as antivirus programs and firewalls, to prevent detection.

 

Autorun.TZ 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.