Malwarebytes reports Snake has been infecting Windows systems as far back as 2008 and even having a Linux variant discovered back in 2014. The Snake malware, and the variants it derives from, has been around for nearly a decade now. These certificates were created to help validate applications with Gatekeeper, but lately have been used to spread malicious software. This is the second reported malware incident in the past week using a valid certificate. Having used a valid developer’s certificate, the malware was set to run free on macOS even with Gatekeeper enabled. If a user tries to delete the ads, the adware downloads even more ads - all the while changing the browser home page, popping up ads in the status bar at an annoying rate and sending users' contact information to advertisers.A new piece of backdoor malware originally discovered on Windows has found a new home in macOS. Disguising itself as a legitimate Adobe Flash Player installer, the malware burrows into pre-existing macOS folders making it harder to spot. One version even contains a working version of Flash Player, but also asks users to 'root' their phones - never a good sign - and then downloads a second app full of ads. These phony Flash Player apps use Adobe's icon and logo, but also contain adware and Trojans.

Scammers, banking on the assumption that not everyone knew about the Adobe-Android split, cashed in on the removal of Flash Player from the Google Play app store by creating fake or pirated versions of the Flash Player app and putting them up on third-party distribution sites. Adobe, for its part, says it has chosen to stop developing Flash Player for the Android platform, and is focusing on improving its products for Windows and for its cross-platform Adobe Integrated Runtime (AIR) environment, which allows a standardized build of Flash to run on many different systems.

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