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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

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Boot-437

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Boot-437
Technical name:Boot-437
Threat level:Low
Type:Virus
Effects:  It infects the boot sector of disk drives, making it difficult for the affected computer to start up.

Affected platforms:

MS-DOS

Detection updated on:July 10, 2008
StatisticsNo
Family:VALENTIN

Brief Description 

    

Boot-437 is a boot virus that does not have any destructive effects, which infects the boot sector of floppy disks and hard disks.

Boot-437 can only infect the computers on which an infected floppy disk has been used, it does not use any other means.

When an infected floppy disk is used on a computer, Boot-437 goes memory resident and infects all of the floppy disks used on the infected computer from then on, provided that they are not write-protected.

Visible Symptoms 

    

Boot-437 is difficult to recognize, as it does not display any messages or warnings that indicate that it has infected a computer. Occasionally, the high-density floppy disks used on the infected computer may lose some of the files they contain.

Furthermore, write and read access to infected floppy disks will be slower than usual.

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