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- Discovered:
- February 20, 2004
- Updated:
- February 13, 2007 12:17:50 PM
- Also Known As:
- W32/Mydoom.f@MM [McAfee], WORM_MYDOOM.F [Trend], W32/MyDoom-F [Sophos], I-Worm.Mydoom.f [Kaspersky], Win32.Mydoom.F [Computer Assoc
- Type:
- Worm
- Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
The W32.Mydoom.F@mm worm:
- Is a mass-mailing worm that opens a backdoor on TCP port 1080
- Can download and execute arbitrary files
- Will perform a Denial of Service (DoS) against www.microsoft.com and www.riaa.com, if the computer's local system date is between the 17th and 22nd of any month.
- Sets up a backdoor in an infected system, by opening TCP port 1080. This could allow an attacker to connect to a computer and use it as a proxy to gain access to its network resources.
The worm arrives as an attachment with the file extension .bat, .com, .cmd, .exe, .pif, .scr, or .zip. The From: line of the email may be spoofed.
Virus definitions released on February 25, 2004 contained an enhanced W32.Mydoom.F@mm detection. This update provides a supplemental detection of zip files in addition to the existing signatures.
Antivirus Protection Dates
- Initial Rapid Release version February 23, 2004
- Latest Rapid Release version September 28, 2010 revision 054
- Initial Daily Certified version February 23, 2004
- Latest Daily Certified version September 28, 2010 revision 036
- Initial Weekly Certified release date February 23, 2004
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: Yana Liu
