The requested object is infected with the virus Trojan.JS.Redirector.ar – false alarm by Kaspersky Lab products on some Google web pages
Kaspersky is reporting that it’s AntiVirus solution is flagging Google Adsense ads as being infected with the virus Trojan.JS.Redirector.ar but which in fact are false-positives. The error message looks like this “The requested object is infected with the virus Trojan.JS.Redirector.ar”
Here’s what they have to say about the mater:
“Kaspersky Lab acknowledges a false positive returned by its products for a number of Internet resources with Google contextual advertising.
An incorrect signature was added to the company’s antivirus databases on 25 January at 07:00 Moscow time (GMT+3). As a result, Kaspersky Lab products erroneously blocked some legitimate websites containing the link on script http://pagead2.googlesyndication.com/pagead/show_ads.js, which is used in the contextual advertising system Google AdSense. When users visited an affected web resource, a message was displayed stating that the page contained the malicious program Trojan.JS.Redirector.ar.”

Links:
http://support.kaspersky.com/kis2010/error?qid=208281219
http://news.softpedia.com/news/Kaspersky-Says-Google-Spreads-Malware-but-Trojan-JS-Redirector-ar-Is-a-False-Positive-133118.shtml