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Virus:DOS/JackTheRipper

First posted on 14 January 2015.
Source: Microsoft

Aliases :

There are no other names known for Virus:DOS/JackTheRipper.

Explanation :

Threat behavior

Installation

This boot sector virus infects the master boot record (MBR) on hard disks and the DOS boot sector on floppy disks.

It uses stealth to hide traces of infection.

This virus is unlikely to run in operating systems later than Windows XP.

Spreads via

The virus copies itself to any floppy disks inserted into an infected PC. The virus then spreads to any other PC where the infected floppy disk is inserted.

Payload

Corrupts files

This virus targets the "BIOS interrupt service"; it hooks into the read/write BIOS service and can swap two 16-bits of a random sector.

This can cause your files to become unstable.

Additional information

The virus also contains the following strings:

• (C)1992 Jack Ripper
• FK 'EM UP !

Analysis by Vladimir Zubko

Symptoms

Alerts from your security software might be the only symptom.

Last update 14 January 2015

 

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