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Updated:
- February 13, 2007 11:39:40 AM
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Type:
- Spyware
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Risk Impact:
- High
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File Names:
- Addclass.exe
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Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
Behavior
Spyware.CWSAddClass is an Internet Explorer search function hijacker. It changes the search settings to a new search engine and adds a prefix to all the Web pages, so that typed Web addresses are channeled through an intermediary "enhanced-http site," which captures Internet-surfing information.
Symptoms
One or more files is detected as Spyware.CWSAddClass.
Transmission
Spyware.CWSAddClass is typically installed silently through an ActiveX installer.
Antivirus Protection Dates
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Initial Rapid Release version September 25, 2004
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Latest Rapid Release version September 25, 2004
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Initial Daily Certified version September 25, 2004
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Latest Daily Certified version December 18, 2007 revision 039
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Initial Weekly Certified release date September 29, 2004
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.