MIX1 is derived from the Icelandic virus, but contains code from the Ping-Pong virus as well. There are two versions known, MIX1 and MIX1-B, practically identical, except for the size. MIX1 displays a bouncing ball on the screen, and garbles all output going to the printer. It will also disable the NumLock key.

One unusual "feature" of MIX1 is that it will only infect files 8192 bytes long or larger.

Automatic action

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.

Suspect a file is incorrectly detected (a False Positive)?

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 detection database 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.

For more Support


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User Guide

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Contact Support

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Submit a sample

Submit a file or URL for further analysis.

Technical Details




Other:Resident, COM/EXE-files


Probably written by the same author, but considerably modified.