Prague

Threat description

Details

CATEGORYMalware
TYPEVirus
ORIGINHungary
OTHERResident, COM-files

Summary

This virus was found in August 1991. It contains the texts 'Backtime' and turns the system timer to work backwards.



Removal

Automatic action

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

More scanning & removal options

More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.

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

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Technical Details


Variant:Blinker

Slightly shorter, only 512 bytes. Displays the following error messages occasionally:

    Bad command  error reading device CON    Bad command  error writing device CON  

Variant:Shaker

This variant is also 512 bytes, but it produces a very interesting "shaking" effect on the screen, when run, as the virus interferes with the video controller. This version contains the text "Shaker"


Variant:Pizza (Plastic Pizza)

This 1236 bytes long variant carries a copy of the Michelangelo virus with itself, and will infect all clean hard drives it spots with it.

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