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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Gaobot.MRC

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Gaobot.MRC
Technical name:W32/Gaobot.MRC.worm
Threat level:Medium
Type:Worm
Effects:   It spreads and affects other computers. It searches for and steals passwords saved for certain Windows services. It generates a large amount of network traffic activity with the consequent consumption of bandwidth. It carries out actions that decrease the security level of the computer. It uses stealth techniques to avoid being detected by the user. It spreads by exploiting vulnerabilities, via email, via IRC.
Affected platforms:

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

First detected on:March 27, 2006
Detection updated on:March 27, 2006
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Gaobot.MRC is a worm that spreads by copying itself, without infecting other files.

 

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

 

  • 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; it awaits remote-control orders received through IRC, HTTP, or FTP.

 

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.

 

Gaobot.MRC 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.
  • IRC: It sends a copy of itself to all users connected to the channel to which the infected user is connected.