This virus is believed to have been written by a student at the "Vish Finansovo-Stopanski Institut" in Bulgaria. It can be stopped by making files read-only. When it activates, it may display the following messages.
HELLO!!! HAPPY DAY and SUCCESS from virus 1.1 VFSI-Svistov
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
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