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  3. W32.Mytob.EG@mm

W32.Mytob.EG@mm

Risk Level 2: Low

Discovered:
June 12, 2005
Updated:
February 13, 2007 12:40:12 PM
Also Known As:
Win32.Mytob.ER [Computer Assoc, Net-Worm.Win32.Mytob.bi [Kaspe, W32/Mytob.cj@MM [McAfee], W32/Mytob-CS [Sophos], WORM_MYTOB.EH [Trend Micro]
Type:
Worm
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Mytob.EG@mm is a mass-mailing worm that opens an IRC back door and lowers security settings on the compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version June 13, 2005
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version June 13, 2005
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date June 15, 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: More than 10
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: High
Writeup By: Takayoshi Nakayama

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