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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Marker.X

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Marker.X
Technical name:W97M/Marker.X
Threat level:Low
Type:Virus
Effects:  It eliminates the files of the hard disk root drive on the 22nd of February.
Affected platforms:

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

Detection updated on:Nov. 13, 2002
StatisticsNo
Family:VALENTIN

Brief Description 

    

Marker.X is a macro virus whose most damaging effect is to eliminate the files that are stored in the root drive C:, when the date on the system clockis February 22.

In addition, it infects Word files and the global template (NORMAL.DOT file) that this application uses.

Marker.X is a polymorphic virus, as the infections that it carries out vary.

Visible Symptoms 

    

An indication that Marker.X has infected a computer is the following message, which the virus displays on screen when the date on the system clock is February 22:

When the user tries to run the Visual Basic Editor incorporated in Word, the virus displays the following message, simulating that a memory error has occurred: