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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Appder

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Appder
Technical name:W97M/Appder.A
Threat level:Low
Alias:W97M/NTTHNTA, Appder.A
Type:Virus
Effects:  It infects Word 97 files and deletes some files from the hard disk.
Affected platforms:

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

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

Brief Description 

    

Appder is a   macro virus that tries to delete files with an EXE, COM, TTF and FOT extension from the hard disk, once it has infected 20 Word documents.

In addition, it infects files created with Word 97 and the global template that Word uses.

It is easy to become infected by Appder, as it can reach computers through any of the means normally used by viruses: e-mail messages with infected attachments, computer networks, CD-ROMs, Internet downloads, FTP, diskettes, etc.

Visible Symptoms 

    

Appder is very difficult to recognize, as it does not display any messages or warnings that indicate that it has infected a computer.