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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Tristate.C

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Tristate.C
Technical name:O97M/Tristate.C
Threat level:Low
Type:Virus
Effects:  It infects Word documents, Excel spreadsheets and PowerPoint presentations. It inserts a text in the Word documents it infects.

Affected platforms:

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

Detection updated on:Nov. 13, 2002
StatisticsNo

Brief Description 

    

Tristate.C is a macro virus that adds the text <–1nternal–> Triplicate v0.21 /1nternal in infected to the Word documents it infects.

In addition, it infects Word documents (files with a DOC extension), Excel spreadsheets (files with an XLS extension) and PowerPoint presentations (files with a PPT extension).

Tristate.C does not spread using its own means, but it infects other files. It reaches computers when these infected files are distributed, which can enter computers through any of the typical means of tranmission, which include, among others, floppy disks, e-mail messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer file sharing programs (P2P), etc.

Visible Symptoms 

    

Tristate.C is easy to recognize once it has infected a computer, as it inserts the following text in the Word documents it infects:

<–1nternal–> Triplicate v0.21 /1nternal