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  3. W32.Mytob.V@mm

W32.Mytob.V@mm

Risk Level 2: Low

Discovered:
April 3, 2005
Updated:
February 13, 2007 12:36:16 PM
Also Known As:
Win32.Mytob.AA [Computer Assoc, Net-Worm.Win32.Mytob.c [Kasper, W32/Mytob.c@MM [McAfee], W32/Mytob-C [Sophos], WORM_MYTOB.V [Trend Micro]
Type:
Worm
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Mytob.V@mm is a mass-mailing worm that uses it own SMTP engine to send an email to addresses that it gathers from files on the compromised computer. The email has a variable subject and attachment name. The attachment will have a .bat, .cmd, .doc, .exe, .htm, .pif, .scr, .tmp, .txt, or .zip file extension.

The worm also has the ability to open a back door and spreads through the network by exploiting common system vulnerabilities.

Antivirus Protection Dates

  • Initial Rapid Release version April 4, 2005
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version April 4, 2005
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date April 6, 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: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: High
Writeup By: Candid Wueest

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