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Discovered:
- June 12, 2006
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Updated:
- February 13, 2007 12:56:18 PM
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Also Known As:
- JS/Yamanner@MM [McAfee], JS_YAMANER.A [Trend Micro], Yamanner.A [F-Secure], JS/Yamann-A [Sophos]
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Type:
- Worm
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Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
JS.Yamanner@m is a worm that is written in JavaScript. It exploits a vulnerability in the Yahoo! Mail service to send a copy of itself to other Yahoo! Mail contacts.
Notes:
- The worm cannot run on the newest version of Yahoo Mail Beta.
- Rapid Release Definitions with sequence number of 55078 or greater are required to detect this threat.
Further Reading:
For a more in-depth analysis detailing the origin and the subsequent propagation of JS.Yamanner@m, please read the
Malicious Yahooligans whitepaper published by Symantec Security Response.
Antivirus Protection Dates
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Initial Rapid Release version June 12, 2006
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Latest Rapid Release version September 28, 2010 revision 054
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Initial Daily Certified version June 12, 2006
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Latest Daily Certified version September 28, 2010 revision 036
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Initial Weekly Certified release date June 14, 2006
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
Distribution
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Distribution Level: Medium
Writeup By: Mircea Ciubotariu
