65037873 submission

An anonymous reader writes: Researchers at Barracuda Labs have discovered that for the second time in as many weeks, the Zedo ad network is being used to distribute malware through top-ranked websites. CryptoWall ransomware, the payload installed by the most recent drive-by download attacks, was initially not detected by a single AV tool on VirusTotal and has a valid digital signature from a publisher named Trend.

