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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Gaobot.MOI

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Gaobot.MOI
Technical name:W32/Gaobot.MOI.worm
Threat level:Medium
Type:Worm
Effects:   It spreads and affects other computers. It carries out actions that decrease the security level of the computer. It uses stealth techniques to avoid being detected by the user. It does not spread automatically using its own means.
Affected platforms:

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

First detected on:March 13, 2006
Detection updated on:March 21, 2006
StatisticsNo

Brief Description 

    

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

 

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 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.

 

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.
  • It deletes the original file from which it was run once it is installed on the computer.

 

Gaobot.MOI does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.