Being run this trojan shows a messagebox 'This is user-friendly Windows 98' and starts to randomly move mouse pointer. It also blocks keyboard so you can't kill the trojan task in Task Manager and continue working with other applications. The computer has to be reset - all unsaved data in opened applications will be lost.
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.
Technical Details:Alexey Podrezov, F-Secure