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W32.Mydoom.J@mm

Risk Level 2: Low

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Discovered:
April 20, 2004
Updated:
February 13, 2007 12:55:55 PM
Also Known As:
WORM_MYDOOM.J [Trend], Win32.Mydoom.J [Computer Assoc, W32/Mydoom.j@MM [McAfee]
Type:
Worm
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

W32.Mydoom.J@mm is an encrypted, mass-mailing worm that arrives as an attachment with either a .pif, .scr, .exe, .cmd, .bat, or .zip extension. The worm also contains keylogging capabilities.

Unlike previous Mydoom variants, W32.Mydoom.J@mm does not appear to act as a backdoor, and it is similar in functionality to W32.Mydoom.A@mm.

This threat is written in C++ and is packed with UPX.

Antivirus Protection Dates

  • Initial Rapid Release version April 20, 2004
  • Latest Rapid Release version June 23, 2011 revision 041
  • Initial Daily Certified version April 20, 2004
  • Latest Daily Certified version June 24, 2011 revision 002
  • Initial Weekly Certified release date April 20, 2004
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
Summary| Technical Details| Removal

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