Threat Description



Category: Malware
Type: Virus
Platform: W32
Aliases: Joke.Win.Jeff, UltraCool


The 'UltraCool' joke is a standalone application. When executed it first asks to enter first and last names of a user. Then it outputs the following message:

Error     This application stopped responding to the computer.      A LOW level Hard Disk format will procede in       27 seconds if cancel button in not pressed         WARNING: THIS WILL DELETE ALL INFORMATION   STORED ON YOUR HARD DRIVE 			   


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

This dialog has a 'Cancel' button. After that the countdown starts. The 'Cancel' button can't be clicked because it moves away when mouse cursor appears near it. When the counter reaches zero the screen goes blank for a second and then the joke shows a message in big letters 'Just Kidding...'. Shortly after that there appears 'Done' button. After this button is clicked the joke passes control to the system.

The joke is written in Visual Basic.

Description Details: Analysis: Alexey Podrezov; F-Secure


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