Threat Description

V-Sign

Details

Aliases:V-Sign, Cansu, Sigalit
Category:Malware
Type:Virus
Platform:W32

Summary



V-Sign is a typical boot sector virus, except that it uses slightly polymorphic encryption.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



V-Sign infects DOS boot sectors on diskettes and Master Boot Records on hard disks. It is only able to infect a hard disk when you boot a machine with an infected diskette in drive A:. At this time the virus infects the Master Boot Record, and after that it will go resident to high DOS memory during every boot-up from the hard disk. Once V-Sign gets resident to memory, it will infect practicly all non-writeprotected diskettes used in the machine.

V-Sign doesn't preserve the original boot sector when it infects a disk. The virus activates after infecting 64 diskettes. At this time it will display a large V-shaped letter and hang the machine.






SUBMIT A SAMPLE

Suspect a file or URL was wrongly detected? Submit a sample to our Labs for analysis

Submit Now

Give And Get Advice

Give advice. Get advice. Share the knowledge on our free discussion forum.

Learn More