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- Discovered:
- February 28, 2005
- Updated:
- February 13, 2007 12:34:20 PM
- Also Known As:
- Win32.Mytob.A [Computer Associ, Mytob.A [F-Secure], Net-Worm.Win32.Mytob.a [Kasper, W32/Mydoom.bg@MM [McAfee], W32/Mytob-A [Sophos], WORM_MYTOB.A [Trend Micro]
- Type:
- Worm
- Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Mytob.B@mm is a mass-mailing worm that uses it own SMTP engine to send an email to addresses that it gathers from the Windows Address Book on the compromised computer.
The worm also has the ability to open a back door and spread through the network by exploiting the Microsoft Windows Local Security Authority Service Remote Buffer Overflow (described in Microsoft Security Bulletin MS04-011).
Antivirus Protection Dates
- Initial Rapid Release version February 28, 2005
- Latest Rapid Release version November 18, 2011 revision 041
- Initial Daily Certified version February 28, 2005
- Latest Daily Certified version November 19, 2011 revision 016
- Initial Weekly Certified release date March 2, 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: Asuka Yamamoto
