News: Banner Ad Networks Used for Attacks
Banner Ad Networks Used for Attacks
Quote:
August 9, 2004 -- (WEB HOST INDUSTRY REVIEW) -- Several smaller banner ad networks have been used to inject malicious code into Web sites, according to research and analysis firm Netcraft (
netcraft.com). In each of the cases, code for the banners serve as the trigger for a string of exploit scripts that trick Internet Explorer into downloading malware or spyware.
Because of their ability to place code on hundreds of outside sites, banner networks have become a vehicle for malware and virus distribution, the report said. And according to Netcraft, in an particularly alarming development, phishing scams have recently demonstrated a similar ability, installing keylogging trojans via banner ads.
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According to the report, SANS analyst Tom Liston has discovered a number of cases where banners have been used to install trojans and spyware.