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Discovered:
- June 12, 2009
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Updated:
- June 15, 2009 1:32:46 PM
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Also Known As:
- W32.Jessinv [Symantec], W32/Autorun-AKG [Sophos]
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Type:
- Worm
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Infection Length:
- 557,096 bytes
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Systems Affected:
- Windows 2000, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
W32.Ackantta.C@mm is a mass-mailing worm that spreads through file-sharing programs and sends spam email that contains links to malicious files.
Note: Virus definitions dated June 15, 2009 or earlier detect this threat as W32.Jessinv.
For more information, please see the following resources:
Antivirus Protection Dates
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Initial Rapid Release version June 12, 2009 revision 020
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Latest Rapid Release version February 19, 2013 revision 016
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Initial Daily Certified version June 12, 2009 revision 021
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Latest Daily Certified version September 28, 2010 revision 036
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Initial Weekly Certified release date June 17, 2009
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: Easy
Damage
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Damage Level: Medium
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Payload: May download more files on to the compromised computer.
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Large Scale E-mailing: Sends email spam with links to malicious files.
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Deletes Files: Deletes certain files on the compromised computer.
Distribution
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Distribution Level: Medium
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Subject of Email: You have received A Hallmark E-Card!, Your friend invited you to twitter!, Jessica would like to be your friend on hi5!, Shipping update for your Amazon.com order 254-78546325-658742
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Name of Attachment: Postcard.zip
Invitation Card.zip
Shipping documents.zip
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Shared Drives: Spreads through file-sharing programs
Writeup By: Hatsuho Honda and Fergal Ladley
