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Discovered:
- August 16, 2003
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Updated:
- February 13, 2007 12:05:36 PM
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Also Known As:
- PE_DUMARU.A [Trend], Win32.Dumaru [Computer Associa, W32/Dumaru@MM [McAfee], W32/Dumaru-A [Sophos], I-Worm.Dumaru [Kaspersky]
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Type:
- Worm
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Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
W32.Dumaru@mm is a mass-mailing worm that drops an IRC Trojan onto an infected machine. The worm gathers email addresses from certain file types and uses its own SMTP engine to email itself.
The email has the following characteristics:
From: "Microsoft" <security@microsoft.com>
Subject: Use this patch immediately !
Message:
Dear friend , use this Internet Explorer patch now!
There are dangerous virus in the Internet now!
More than 500.000 already infected!
Attachment: patch.exe
The worm will also infect the exe files on NTFS partitions.
This threat is compressed with UPX.
Antivirus Protection Dates
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Initial Rapid Release version August 18, 2003
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Latest Rapid Release version September 28, 2010 revision 054
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Initial Daily Certified version August 18, 2003
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Latest Daily Certified version September 28, 2010 revision 036
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Initial Weekly Certified release date August 18, 2003
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Medium
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Number of Infections: More than 1000
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Number of Sites: More than 10
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Moderate
Writeup By: Yana Liu
