Discovered: July 2, 2003
Updated: February 13, 2007 12:03:22 PM
Also Known As: W32.Akosw@mm, Win32.Israz.A [CA], W32/Israz.worm [McAfee], Worm_Israz.A [Trend], W32/Israz-A [Sophos], I-Worm.Israz [KAV]
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
W32.Israz@mm is a mass-mailing worm that sends itself to all the contacts in the Windows Address Book.
The email has the following characteristics:
From: update@microsoft.com
Subject: Windows Update
Message:
Your file is attached to message.
For more information go to Windows Update http:/ /windowsupdate.microsoft.com
Attachment: Update.exe
From: update@microsoft.com
Subject: PS1
Message:
Your file is attached to message.
For more information go to Windows Update http:/ /windowsupdate.microsoft.com
Attachment: Q322593.exe
From: help@google.com
Subject: Update Your ToolBar
Message:
Your file is attached to message.
For more information go to Google home page http:/ /www.google.com
Attachment: ToolBar.exe
From: help@google.com
Subject: Auto Search Wizard
Message:
Your file is attached to message.
For more information go to Google home page http:/ /www.google.com
Attachment: Wizard.exe
From: copyright@yahoo-inc.com
Subject: Yahoo FAQ
Message:
Your file is attached to message.
For more information go to Yahoo home page http:/ /www.yahoo.com
Attachment: FAQ
From: copyright@yahoo-inc.com
Subject: Support For Search
Message:
Your file is attached to message.
For more information go to Yahoo home page http:/ /www.yahoo.com
Attachment: Support.exe
From: <the infected user's email address>
Subject: You must to see that
Message:
Your file is attached to message.
Attachment: Fun.exe
This worm spreads itself through the KaZaA file-sharing network and is written in the Microsoft C++ programming language.
NOTE: Definitions dated prior to July 11, 2003 may detect this threat as W32.Akosw@mm.
Protection
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Initial Rapid Release version July 3, 2003
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Latest Rapid Release version July 19, 2008 revision 019
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Initial Daily Certified version July 3, 2003
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Latest Daily Certified version January 20, 2009 revision 048
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Initial Weekly Certified release date July 8, 2003
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Low
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Number of Infections: 0 - 49
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Number of Sites: 0 - 2
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Geographical Distribution: Low
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Threat Containment: Easy
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Removal: Moderate
Damage
Distribution
Writeup By: Yana Liu