Windows 7: Readers Attacked via Malvertizement.

Unidentified attackers have managed to push a malicious advertisement onto the website of the Minneapolis Star Tribune, the biggest newspaper in Minnesota. The startribune.com admins disabled all advertising on the site yesterday and told readers to perform free security scans.

The attack began on Sunday, with readers reporting seeing suspicious alerts while browsing the startribune.com website. "Users received what appeared to be a warning message from the Windows operating system (Apple Macintosh computers appear not to have been affected). The warning said the computer had a problem, and it urged the user to click on the warning message for help," Steve Alexander, a technology reporter with the newspaper, explained