W32.Assiral@mm

Risk Level 2: Low

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Discovered: February 22, 2005
Updated: February 13, 2007 12:34:00 PM
Also Known As: Email-Worm.Win32.Ariss.a [Kasp, W32/Laris.worm [McAfee], W32/Assiral-A [Sophos], WORM_ASSIRAL.A [Trend Micro]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


W32.Assiral@mm is a mass-mailing worm that sends a copy of itself to email addresses gathered from a compromised computer. The email has the following characteristics:
Subject: Re: LOV YA!
Attachment: LOVE_LETTER.TXT.exe

Protection

  • Initial Rapid Release version February 23, 2005
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version February 23, 2005
  • Latest Daily Certified version January 20, 2009 revision 048
  • Initial Weekly Certified release date February 23, 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: Medium

Distribution

  • Distribution Level: High

Writeup By: Takayoshi Nakayama
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