W32.Mytob.CU@mm

Risk Level 2: Low

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Discovered: May 30, 2005

Updated: February 13, 2007 12:39:27 PM

Also Known As: Win32.Mytob.{DM, -DO, DQ, DV} [Computer Associates], Net-Worm.Win32.Mytob.{bb, bf} [Kaspersky Lab], W32/Mytob.{bh, bj, bk, bp}@MM [McAfee], W32/Mytob-{M, CO, CP} [Sophos], WORM_MYTOB.{AR, BI, BM, CG} [Trend Micro]

Type: Worm

Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Mytob.CU@mm is a mass-mailing worm that has back door capabilities and uses its own SMTP engine to send an email to addresses that it gathers from the compromised computer.

Note: Definitions prior to May 30, 2005 may detect this threat as W32.Mytob.CE@mm.

Protection

Initial Rapid Release version May 30, 2005
Latest Rapid Release version August 20, 2008 revision 017
Initial Daily Certified version May 30, 2005
Latest Daily Certified version August 20, 2008 revision 016
Initial Weekly Certified release date June 1, 2005

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: Robert X Wang

Technical Details

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