Threat description


Category: Malware
Type: Virus
Platform: W32
Aliases: Uddy


This virus stays resident in memory and infects EXE files when they are executed.

Uddy activates when an infected program is executed after the first of January, 1998. At this time the virus overwrites part of the hard drive with text "UDDY UDDY UDDY", then displays "UDDY" on screen and hangs the machine.

Uddy.2617 was reported to be in the wild in USA in April 1996.


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.


More information on 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.

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.

Description Details: Analysis: Peter Szor, F-Secure, 1996


Suspect a file or URL was wrongly detected? Submit a sample to our Labs for analysis

Submit Now

Give And Get Advice

Give advice. Get advice. Share the knowledge on our free discussion forum.

Learn More