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- Discovered:
- June 12, 2006
- Updated:
- February 13, 2007 12:56:18 PM
- Also Known As:
- JS/Yamanner@MM [McAfee], JS_YAMANER.A [Trend Micro], Yamanner.A [F-Secure], JS/Yamann-A [Sophos]
- Type:
- Worm
- 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
- Initial Rapid Release version June 12, 2006
- Latest Rapid Release version September 28, 2010 revision 054
- Initial Daily Certified version June 12, 2006
- Latest Daily Certified version September 28, 2010 revision 036
- Initial Weekly Certified release date June 14, 2006
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
- Wild Level: Low
- Number of Infections: 0 - 49
- Number of Sites: 0 - 2
- Geographical Distribution: Low
- Threat Containment: Easy
- Removal: Easy
Damage
- Damage Level: Medium
Distribution
- Distribution Level: Medium
Writeup By: Mircea Ciubotariu
