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Discovered:
- March 7, 2005
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Updated:
- February 13, 2007 12:34:51 PM
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Also Known As:
- Commwarrior.A [F-Secure], SymbOS/Commwarrior.a [McAfee], SYMBOS_COMWAR.A [Trend Micro]
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Type:
- Worm
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Systems Affected:
- EPOC
SymbOS.Commwarrior.A is a worm that replicates on Series 60 phones. It attempts to spread using Multimedia Messaging Service (MMS) and Bluetooth as a randomly named .sis file. If it is the first hour of the 14th of any month, the threat resets the device.
Symantec recommends the following to protect against this threat:
- If Bluetooth is not required, it should be turned off.
- If you require the use of Bluetooth, ensure that the device's visibility setting is set to "Hidden" so that it can not be scanned by other Bluetooth devices.
- Avoid use of device pairing. If it must be used, ensure that all paired devices are set to "Unauthorized". This requires each connection request to be authorized by the user.
- Do not accept unsigned applications (no digital signature) or applications sent from unknown sources. Be absolutely sure of the origin of the application before accepting it.
Symantec offers a security solution for Symbian known as Symantec Client Security for Nokia Communicators. This product can be downloaded via the Nokia 9500/9300 web browser or from a PC. Symantec will never send unsolicited messages regarding one of our products. For additional information please see
http://www.symantec.com/smallbiz/nok.
Antivirus Protection Dates
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Initial Rapid Release version March 8, 2005
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Latest Rapid Release version September 28, 2010 revision 054
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Initial Daily Certified version March 8, 2005
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Latest Daily Certified version September 28, 2010 revision 036
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Initial Weekly Certified release date March 9, 2005
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
Distribution
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Distribution Level: Medium
Writeup By: Frederic Perriot, Peter Ferrie
