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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

MSNWorm.GE

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:MSNWorm.GE
Technical name:W32/MSNWorm.GE.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 uses anti-monitoring techniques in order to prevent it being detected by antivirus companies. It spreads , via mapped drives, through instant messaging, by infecting files that are then distributed.
Affected platforms:

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

First detected on:April 24, 2009
Detection updated on:April 24, 2009
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

MSNWorm.GE 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 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.

 

It uses several methods in order to avoid detection by antivirus companies:

  • It terminates its own execution if it detects that it is being executed in a virtual machine environment, such as VMWare or VirtualPC.

 

MSNWorm.GE 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.
  • Instant messaging: it sends links pointing to a copy of itself to all users included in the infected user's contacts list.
  • Computer networks (mapped drives): it creates copies of itself in mapped drives.
  • 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.