- Discovered:
- July 9, 2003
- Updated:
- February 13, 2007 12:03:36 PM
- Also Known As:
- W32.Laorenshen.Trojan, Trojan.Win32.Laoshen.a [Kasper, Laoren [McAfee], TROJ_LARENSHEN.A [Trend Micro], Troj/Laoshen-A [Sophos]
- Type:
- Trojan Horse
- Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
Trojan.Laorenshen is a Trojan Horse that tries to delete files and block the use of the computer's normal programs. It is compressed with UPX and ASPack.
Antivirus Protection Dates
- Initial Rapid Release version July 10, 2003
- Latest Rapid Release version October 6, 2011 revision 001
- Initial Daily Certified version July 10, 2003
- Latest Daily Certified version October 6, 2011 revision 003
- Initial Weekly Certified release date July 16, 2003
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: Moderate
Damage
- Damage Level: Medium
Distribution
- Distribution Level: Low
Writeup By: Jari Kytojoki



