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Trojan hijacks Google text ads

Malware redirects host file

Guy Dixon, vnunet.com 19 Dec 2007
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A new Trojan that hijacks Google text ads and replaces them with ads from a different provider has been picked up by BitDefender.

The antivirus company has identified the threat as Trojan.Qhost.WU which modifies the infected computer's host file, a local storage for domain name/IP address mappings.

The infected machine's browser then reads advertisements from a server at the replacement address rather than from Google.

"This damages users and webmasters because it takes away viewers and thus a possible money source from their websites," said BitDefender virus analyst Attila-Mihaly Balazs.

Users are advised to let antivirus software delete the Trojan.

See also:

Primary threat to online shoppers this Christmas  18 Dec 2007
Finjan reports new wave of malicious activity  17 Dec 2007
Computer virusOld viruses slipping under the guard  05 Dec 2007
Trojan horseTrail leads back to China-based operations including a government website  04 Dec 2007
PhishingAttacks having a detrimental effect on reputation  26 Nov 2007

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