1. /
  2. Security Response/
  3. SymbOS.Drever.B

SymbOS.Drever.B

Risk Level 1: Very Low

Discovered:
March 22, 2005
Updated:
February 13, 2007 12:35:51 PM
Type:
Trojan Horse
Systems Affected:
EPOC

SymbOS.Drever.B is a Trojan horse that disables certain Symbian OS antivirus programs by overwriting their startup files. The antivirus program affected by this Trojan is SimWorks Anti-Virus for Symbian OS.

It has been reported that the Trojan can be downloaded as a file named Simworks_update.sis. (This Trojan may be located inside a compressed file named Simworks_update.zip.) The file appears as an update for the Symbian program, SimWorks AntiVirus Software.




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.

Antivirus Protection Dates

  • Initial Rapid Release version March 25, 2005
  • Latest Rapid Release version August 20, 2010 revision 001
  • Initial Daily Certified version March 25, 2005
  • Latest Daily Certified version August 20, 2010 revision 003
  • Initial Weekly Certified release date March 25, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy

Damage

  • Damage Level: Low

Distribution

  • Distribution Level: Low
Writeup By: Robert X Wang

Search Threats

Search by name
Example: W32.Beagle.AG@mm
STAR Antimalware Protection Technologies
Internet Security Threat Report
Symantec DeepSight Screensaver