Threat description




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.


Automatic action

When detected during scanning, F-Secure SAFE will prompt you for a desired action. You may assess the detected file and choose to Uninstall, Quarantine or keep it installed on your device. More information about these options can be found at Help Center: Assess files detected during scanning.


More information on the 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.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

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://[...]pastehtml.com/[...]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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