Threat description



Skulls.O is an edited version of Skulls.D SIS file trojan, it disables built in applications and third party applications when installed on the device.

In addition of files from Skulls.D, Skulls.O drops file from Fontal.A and Commwarrior.B on the device.

The Fontal.A is installed in directory where the file does not cause harm to the system.

For more details please see description of Skulls.D


Automatic action

Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.

More scanning & removal options

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

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


Generic detection that detects Skulls.O was published for F-Secure Mobile Anti-Virus on January 3rd, 2005 in

Detection Type: Mobile

Database: database build number 20

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