SymbOS.Exy.A

Risk Level 1: Very Low

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Discovered: February 20, 2009
Updated: February 20, 2009 9:15:24 PM
Also Known As: Trojan:SymbOS/Yxe [F-Secure], SYMBOS_YXES.A [Trend]
Type: Trojan
Infection Length: Varies
Systems Affected: Symbian OS

SymbOS.Exy.A is a Trojan horse that attempts to send SMS messages to a list of specified numbers.

Protection

  • Initial Rapid Release version February 20, 2009 revision 006
  • Latest Rapid Release version February 20, 2009 revision 006
  • Initial Daily Certified version February 20, 2009 revision 024
  • Latest Daily Certified version February 20, 2009 revision 024
  • Initial Weekly Certified release date February 25, 2009

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
  • Payload: Sends numerous SMS messages to randomly generated numbers.
  • Modifies Files: Modifies the C:\system\data\System.ini file.
  • Compromises Security Settings: Ends process control or file control utilities.

Distribution

  • Distribution Level: Low

Writeup By: Robert Xiang Wang
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