Fake VPN and Spam Blocker Apps Tied to VexTrio Used in Ad Fraud, Subscription Scams

The malicious ad tech purveyor known as VexTrio Viper has been observed developing several malicious apps that have been published on Apple and Google's official app storefronts under the guise of seemingly useful applications. These apps masquerade as VPNs, device "monitoring" apps, RAM cleaners...