1. Symantec/
  2. Security Response/
  3. SymbOS.Skulls


Risk Level 1: Very Low

November 19, 2004
February 13, 2007 12:30:08 PM
Also Known As:
Skulls [F-Secure], SymbOS/Skulls [McAfee], SYMBOS_SKULLS.A [Trend Micro]
Trojan Horse
Systems Affected:

SymbOS.Skulls is a Trojan horse that replaces the system files on the device, causing application icons to be replaced with a skull icon. By default, the Trojan has the file name "Extended Theme.sis."

Antivirus Protection Dates

  • Initial Rapid Release version November 20, 2004
  • Latest Rapid Release version February 10, 2018 revision 020
  • Initial Daily Certified version November 20, 2004
  • Latest Daily Certified version February 11, 2018 revision 003
  • Initial Weekly Certified release date November 23, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Eric Chien

Search Threats

Search by name
Example: W32.Beagle.AG@mm
STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
  • Twitter
  • Facebook
  • LinkedIn
  • Google+
  • YouTube