Threat Description

Ping-Pong

Details

Aliases: Ping-Pong, Bouncing Ball
Category: Malware
Type: Virus
Platform: W32

Summary


The Ping-Pong virus (also called "Bouncing Ball" or "Italian") was probably the most common and best known boot sector virus for a while, although the Stoned virus now outnumbers it.



Removal


Automatic action

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

More

Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for further assistance.



Technical Details


An infected diskette will contain 1K in "bad clusters".

When this virus activates, a small "ball" starts bouncing around the screen, but in most cases no serious damage occurs.

There is one small bug in the virus code, which causes a crash on '286 machines (and also V20, '386 and '486). The reason is that the author used the "MOV CS,AX" instruction, which only exists on '88 and '86 processors.


Variant:Typo

This variant appeared in Israel. There the effect of the virus has been drastically changed. Instead of displaying a bouncing ball, the virus introduces typing errors in all text going out to the printer.






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