Threat Description



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


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.


Automatic action

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

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

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

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

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.


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.


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