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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Monkey.B

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Monkey.B
Technical name:Empire.Monkey.B
Threat level:Low
Alias:Stoned.Monkey.B, Stoned.Empire.Monkey.B
Type:Virus
Effects:  

It infects the boot sector of the hard disk and floppy disks, and prevents the computer from starting up correctly. It overwrites the Partition table and prevents access to the information in the hard disk.

Affected platforms:

MS-DOS

Detection updated on:Nov. 16, 2001
StatisticsNo

Brief Description 

    

Monkey.B is a boot virus that infects the boot sector of floppy disks and of hard disks.

This is considered a very destructive virus, as it overwrites the Partition table, thereby preventing access to the hard disk information.

Monkey.B infects the hard disk of a computer when it is booted from a floppy disk that is infected with this virus. From then on, all of the floppy disks used on that computer will be infected and it will have problems starting up.

Visible Symptoms 

    

The main visible symptom is that infected computers have problems starting.

In addition, if the user attempts to boot the computer from a clean floppy disk, and then accesses the hard disk, the following message is displayed on the screen:

Invalid drive specification