Discovered: November 19, 2004
Updated: February 13, 2007 12:30:08 PM
Also Known As: Skulls [F-Secure], SymbOS/Skulls [McAfee], SYMBOS_SKULLS.A [Trend Micro]
Type: Trojan Horse
Systems Affected: EPOC
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."
Protection
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Initial Rapid Release version November 20, 2004
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Latest Rapid Release version July 17, 2007 revision 024
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Initial Daily Certified version November 20, 2004
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Latest Daily Certified version June 17, 2008 revision 017
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Initial Weekly Certified release date November 23, 2004
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Low
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Number of Infections: 0 - 49
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Number of Sites: 0 - 2
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Easy
Damage
Distribution
Writeup By: Eric Chien
