Threat Description

Grog

Details

Aliases: Grog, Gorg
Category: Malware
Type:
Platform: W32

Summary


This is large family or loosely-related viruses from Italy. They all contain a reference to 'Grog' in internal texts. Sizes of the viruses range from 200 to over 2000 bytes.



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


Earlier variants infect only COM files. Later ones are resident, infect COM and EXE files and employ encyrption.

There is a wide variety of texts contained within the variants.

Grog viruses are not common outside Italy.

In February 1996 there were over 50 different Grog variants.





Description Details: Mikko Hypponen, F-Secure


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