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W32.Explet.A@mm

Risk Level 2: Low

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Discovered:
June 2, 2004
Updated:
February 13, 2007 12:23:57 PM
Also Known As:
I-Worm.Plexus.a [Kaspersky], WORM_PLEXUS.A [Trend], Win32.Mimail.W [Computer Assoc, W32/Plexus@MM [McAfee]
Type:
Worm
Systems Affected:
Windows 2000, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
CVE References:
CAN-2003-0533 CAN-2003-0352


W32.Explet.A@mm is a mass-mailing worm that also spreads through network shares and the Kazaa file-sharing network. The worm exploits the Microsoft Windows LSASS Buffer Overrun Vulnerability (described in Microsoft Security Bulletin MS04-011) and the DCOM RPC vulnerability (described in Microsoft Security Bulletin MS03-026) through TCP ports 135 and 445. It may also lower security settings and download remote files.

Antivirus Protection Dates

  • Initial Rapid Release version June 3, 2004
  • Latest Rapid Release version March 23, 2012 revision 024
  • Initial Daily Certified version June 3, 2004
  • Latest Daily Certified version March 24, 2012 revision 019
  • Initial Weekly Certified release date June 7, 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: 3 - 9
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: High
Writeup By: Yana Liu
Summary| Technical Details| Removal

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