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Published Dec 07, 2006 | Updated Apr 16, 2011

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BrowserModifier:Win32/CNNIC

Detected by Microsoft Defender Antivirus

Aliases: Adware.CDN-8 (Clam AV) Win32/Adware.CDN (ESET) Adware-CDNHelper (McAfee) W32/CNNIC.A (Norman) ADW_BDSEARCH.OV (Trend Micro) Adware.CDNHelper.B (VirusBuster)

Summary

BrowserModifier:Win32/CNNIC enables Chinese keyword searching in Internet Explorer and adds support for other applications to use Chinese domain names that registered with CNNIC (China Internet Network Information Center). This program is often installed as part of a shareware or freeware program, with or without user consent. BrowserModifier:Win32/CNNIC also contains a kernel driver that protects its files and registry settings from being modified or deleted. The program also includes automatic self-update functionality.

Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as the Microsoft Safety Scanner (http://go.microsoft.com/fwlink/?LinkId=212742). For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.

BrowserModifier:Win32/CNNIC

Summary

What to do now

Technical information

Threat behavior

Installation

Prevention

Symptoms

System Changes