(Dancho Danchev, ZDNet) New research indicates that 1.3 million malicious ads are viewed per day, with 59% of them representing drive-by downloads, followed by 41% of fake security software also known as scareware.

More findings from the Dasient research:
- The probability of a user getting infected from a malvertisement is twice as likely on a weekend and the average lifetime of a malvertisement is 7.3 days.
- 97% of Fortune 500 web sites are at a high risk of getting infected with malware due to external partners (such as javascript widget providers, ad networks, and/or packaged software providers).
- Fortune 500 web sites have such a high risk because 69% of them use external Javascript to render portions of their sites and 64% of them are running outdated web applications.

The research’s findings are also backed up by another recently released report by Google’s Security Team, stating that fake AV is accounting for 50% of all malware delivered via ads.