Threat Description



Category: Malware
Platform: W32
Aliases: Skulls.O, SymbOS/Skulls.O


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

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

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.


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

Description Details: Jarno Niemela September 22nd, 2005;


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