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- Discovered:
- November 6, 2001
- Updated:
- February 13, 2007 11:57:24 AM
- Also Known As:
- W32/Ciosor.worm, I-Worm.Ciosor, W32/Gracioso, WORM_CIOSOR.A
- Type:
- Worm
- Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP
W32.Ciosor is a worm that uses its own SMTP engine to send email.
Antivirus Protection Dates
- Initial Rapid Release version November 7, 2001
- Latest Rapid Release version September 28, 2010 revision 054
- Initial Daily Certified version November 7, 2001
- Latest Daily Certified version September 28, 2010 revision 036
- Initial Weekly Certified release date November 7, 2001
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Gor Nazaryan
