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Trojan.Lhdropper

Risk Level 1: Very Low

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Discovered:
June 24, 2007
Updated:
June 25, 2007 8:50:26 AM
Type:
Trojan
Infection Length:
123,665 bytes
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
Trojan.Lhdropper is a Trojan horse that drops malicious files by exploiting a vulnerability in Lhaca, a freeware application that can compress and decompress LZH archive files.

Further Reading:
To find out more about this threat, please read the Symantec Security Response blog entry Beware of LZH

Antivirus Protection Dates

  • Initial Rapid Release version June 25, 2007 revision 003
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version June 25, 2007 revision 018
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date June 27, 2007
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 malicious files by exploiting a vulnerability in Lhaca application.

Distribution

  • Distribution Level: Low
Writeup By: Masaki Suenaga
Summary| Technical Details| Removal

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