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Ping-Pong

Classification

Category: Malware

Type: Virus

Aliases: Ping-Pong, Bouncing Ball

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

Based on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.

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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.