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Discovered:
- January 28, 2004
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Updated:
- January 29, 2004 9:04:11 PM
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Type:
- Worm
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Infection Length:
- 29184 and 6144 bytes
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Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
W32.Mydoom.B@mm is an encrypted mass-mailing worm that arrives as an attachment with either a .exe, .scr, .cmd, .zip, or .pif extension. It also performs a denial of service attack on www.microsoft.com and allows unauthorized remote access to the compromised host.
Antivirus Protection Dates
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Initial Rapid Release version January 28, 2004
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Latest Rapid Release version November 17, 2011 revision 017
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Initial Daily Certified version January 28, 2004
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Latest Daily Certified version November 17, 2011 revision 018
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Initial Weekly Certified release date January 28, 2004
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Low
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Number of Infections: 0 - 49
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Number of Sites: 0 - 2
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Easy
Damage
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Damage Level: Medium
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Payload: Attempt to perform a DoS attack on various web sites.
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Large Scale E-mailing: Sends a mass mailing of itself.
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Modifies Files: Modifies the hosts file to prevent access to certain Web sites.
Distribution
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Distribution Level: High
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Subject of Email: Varies
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Name of Attachment: Varies
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Shared Drives: Copies itself to Kazaa download folder.
Writeup By: Scott Gettis
