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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Rayl.A

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Rayl.A
Technical name:W32/Rayl.A.worm
Threat level:Low
Alias:Worm.MSN.Elon.a, AdClicker-BD
Type:Worm
Effects:  

It exploits a vulnerability in order to download and execute other malware on the affected computer. It spreads via MSN Messenger.

Affected platforms:

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

First detected on:Sept. 17, 2004
Detection updated on:Sept. 17, 2004
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Rayl.A is a worm that spreads via MSN Messenger.

A message with a link to a picture hosted within a web address is received. When the user opens the picture, which is in fact an HTM file, Rayl.A affects the computer.

Rayl.A attempts to exploit the vulnerability MhtRedir.gen. If exploited successfully, this vulnerability could allow to download and execute other malware on the affected computer.

Visible Symptoms 

    

Rayl.A is easy to recognize when it reaches the computer, as it is received in a link via MSN Messenger:

http://www.xf2s.com//wode.jpg