This virus contains following text string:
HAIFA VIRUS V1.12 WRITTEN BY Y.S GUEST STARS T.S. & I.F. MADE IN ISRAEL I AM TIRED. PLEASE WAKE ME UP ON TUE 12.4.3456 PRESS RESET TO CONTINUE...
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.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
The virus searches specifically for files with ASM, PAS, TXT and DOC extensions (as well as COM and EXE).
ASM files have the first 76 bytes overwritten with a assembler routine which is designed (when assembled) to overwrite the beginning of the first hard drive with garbage.
PAS files have the first 23 bytes overwritten with the text:
CONST VIRUS= "HAIFA";
TXT and DOC files are corrupted by having text inserted at approximate half-way point:
OOPS! Hope I didn't ruin anything!!! Well, nobody reads those stupied DOCS anyway!
Although this virus has no stealth capability, it contains a self-modifying encryption routine such that each infection appears differently on disks.