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W32.Mytob.CU@mm

Risk Level 2: Low

Discovered:
May 30, 2005
Updated:
February 13, 2007 12:39:27 PM
Also Known As:
Win32.Mytob.{DM, -DO, DQ, DV} [Computer Associates], Net-Worm.Win32.Mytob.{bb, bf} [Kaspersky Lab], W32/Mytob.{bh, bj, bk, bp}@MM [McAfee], W32/Mytob-{M, CO, CP} [Sophos], WORM_MYTOB.{AR, BI, BM, CG} [Trend Micro]
Type:
Worm
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Mytob.CU@mm is a mass-mailing worm that has back door capabilities and uses its own SMTP engine to send an email to addresses that it gathers from the compromised computer.

Note: Definitions prior to May 30, 2005 may detect this threat as W32.Mytob.CE@mm.

Antivirus Protection Dates

  • Initial Rapid Release version May 30, 2005
  • Latest Rapid Release version March 24, 2012 revision 020
  • Initial Daily Certified version May 30, 2005
  • Latest Daily Certified version March 24, 2012 revision 019
  • Initial Weekly Certified release date June 1, 2005
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

  • Wild Level: Medium
  • Number of Infections: 50 - 999
  • Number of Sites: More than 10
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: High
Writeup By: Robert X Wang

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