Virus Portal - At a glance description of Polyboot.B - The Panda Software Virus Encyclopedia

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Polyboot.B

The Threat Level varies according to the Distribution and Damage levels


	Common name:			Polyboot.B
	Technical name:			Polyboot.512.B
	Threat Level:			High
	Type:			Virus
	Effects:			It infects floppy disks and the boot sector of the hard disk.
	Systems affected:			MS-DOS
	First detected on:			May 8, 2002
	Detection updated on:			June 4, 2003
	In circulation?			Yes
	Family:			ANTICMOS

	Brief Description
	Polyboot.B is a boot virus that does not have any destructive effects, which infects the boot sector of hard disks (Master Boot Record or MBR) and floppy disks (Boot). Polyboot.B goes memory resident in order to infect the MBR of the hard disks in the infected computer and the Boot of the floppy disks used. Once the computer is infected, Polyboot.B infects all floppy disks used in the computer, provided that they are not write-protected.
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	Visible Symptoms
	The only indication that Polyboot.B has infected a computer is that it has problems starting.
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Last updated: June 4, 2003