Threat Descriptons



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LoicDos.A is a program that turns an infected device into a bot, which is used to perform denial of service (DoS) attack on a targeted server.


Once the scan is complete, the F-Secure security product will ask if you want to uninstall the file, move it to the quarantine or keep it installed on your device.

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.

Technical Details

LoicDos.A is a program that infects a device and uses it to carry out a denial of service (DoS) attack on a targeted server.

Upon installation, LoicDos.A requests for the 'Network communication' permission, which will grant it full Internet access on the compromised device.

LoicDos.A requesting for full Internet access

When executed, it opens up to a website(http://[...][...]tom9l.html) that contains the Javascript to perform denial of service attack on a target.

LoicDos.A getting ready to perform DoS attack

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