Attackers have taken to Facebook Messenger with a combination of social engineering and malicious JavaScript to spread adware.

Mughthesec, a variant of the OperatorMac adware, has been turning hijacked Macs into revenue-generating machines for the authors.

Google said a permissions flaw that puts Android users at heightened risk of malware, ransomware and adware attacks will not be fixed until the release of its next mobile OS, Android O.

Researchers at Check Point found and remediated malware on 38 Android devices that were infected somewhere along the supply chain.

Researchers have linked a variant of the Pirrit adware for Mac OS X to an Israeli online marketing company called TargetingEdge that is still in stealth mode. Amit Serper, lead Linux and Mac OS X researcher at Cybereason, said that script he wrote to remove the original version of Pirrit from compromised machines had recently...

Security experts are warning PC users of scareware computer utilities published by the French firm Tuto4PC that secretly bundle adware and spyware. Cisco’s Talos security research team said several of the company’s utilities, including OneSoftPerDay and System Healer, contain Trojans that exhibit “malicious intent and behavior.” Talos estimates 12 million users have been enticed to download one of...

Researchers discovered a Mac OS X variant of the Windows-based Pirrit adware that creates a proxy server on infected Mac computers and injects ads into webpages. According to researchers at Boston-based Cybereason Labs, the adware, dubbed OSX.Pirrit, is mostly benign, serving up just ads, but has the potential to morph into something more sinister. “Today...

Microsoft has taken steps to impede the next Superfish from impacting users. Superfish was pre-installed adware found on new Lenovo laptops earlier this year. The software exposes users to man-in-the-middle attacks because of the way it injects advertisements into the browser. It comes with a self-signed root cert that generates certs for HTTPS connections, replacing...