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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

DIR II B

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:DIR II B
Technical name:DIR II B
Threat level:Low
Type:Virus
Effects:   It carries out damaging actions on the affected computer. It does not spread automatically using its own means.
Affected platforms:

MS-DOS

First detected on:
Detection updated on:June 29, 2009
StatisticsNo

Brief Description 

    

DIR II B is a virus that spreads to other computers by copying its code to other files or programs.

 

DIR II B does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.

 

DIR II B uses the following infection strategies:

  • Link: it modifies the links that indicate to the operating system where files are stored. It redirects the links to the virus instead of to the original files. When users try to open a file infected by a link virus, they will actually be running the virus. Once infection has been carried out, it will be impossible to work with the original files.