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Trojan.Tarodrop.L

Risk Level 1: Very Low

Discovered:
June 15, 2011
Updated:
June 16, 2011 2:18:31 AM
Type:
Trojan
Infection Length:
Varies
Systems Affected:
Windows 2000, Windows 7, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
CVE References:
CVE-2011-1331
Trojan.Tarodrop.L is a Trojan horse that exploits the JustSystems Ichitaro Memory Management Program Remote Heap Buffer Overflow Vulnerability (BID 48283).

Note: Definitions prior to June 16, 2011 may detect this threat as Trojan.Tarodrop.

Further Reading
For further information, please see the following resource:
Targeted Attacks in 2011 Using Ichitaro Zero-Day Vulnerability

Antivirus Protection Dates

  • Initial Rapid Release version June 15, 2011 revision 038
  • Latest Rapid Release version February 19, 2013 revision 016
  • Initial Daily Certified version June 16, 2011 revision 002
  • Latest Daily Certified version June 16, 2011 revision 002
  • Initial Weekly Certified release date June 22, 2011
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: Drops more malware

Distribution

  • Distribution Level: Low
Writeup By: Kazumasa Itabashi

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