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Bagle.AB

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Bagle.AB
Technical name:W32/Bagle.AB.worm
Threat level:High
Type:Worm
Effects:  

It notifies its author that the computer has been affected. It ends processes belonging to several security programs and to several worms.

Affected platforms:

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

First detected on:April 28, 2004
Detection updated on:Aug. 11, 2009
StatisticsNo
Yes, using TruPrevent Technologies
Family:Mylife

Brief Description 

    

Bagle.AB is a worm that spreads via e-mail in a message with variable characteristics and through peer-to-peer file sharing programs.

Bagle.AB ends processes belonging to antivirus and firewalls programs, among other security applications, as well as to several worms.

In addition, it attempts to connect to several websites that host a PHP script through the port 2535. By doing so, Bagle.AB notifies its author that the computer has been affected.

Visible Symptoms 

    

Bagle.AB is easy to recognize, as it displays the following fake error message once it has affected the computer: