Threat description




This is actually a group of non-related viruses, which have two features in common - they are all shorter than 50 bytes, and infect programs by overwriting them. The viruses are mostly an experiment in tight coding, and are too obvious to be a serious threat. Currently the shortest virus is only 22 bytes.

Like all other overwriting viruses, they cannot be properly disinfected, as infection destroys the original program, so the only solution is to delete all infected files.


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

Technical Details


This virus is 200 bytes long, but most of that is just a long text message.

Variant:NKOTB (Cover Girl, Psychogenius)

Much longer than the other variants, but most of it is just a silly text message, which starts like this:

Oh, oh, oh,
 She's my cover girl, Oh, oh, oh, oh, oh, oh Oh, oh, oh,
 She's my cover girl, Oh, oh, oh, oh, oh, oh

 Cover Girl by The New Kids On The Block Hangin' Tough (c) 1988 CBS Records


Yet another silly virus - 139 bytes long and contains the text:

BANANA, coded by Morbid Angel -92 in Stockholm/Sweden


Obvious, non-interesting variant.

might be a good idea to search all files for infection, as some members of Trivial family will corrupt data files by overwriting them with their own code. F-Secure anti-virus products are able to locate these corrupted data files so you can replace them with good copies.

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