Google has discovered a new commercial spyware that exploits vulnerabilities in Google Chrome, Mozilla Firefox and Microsoft Defender. It shared findings on an exploitation framework with likely ties to Variston IT, that claims to be a provider of custom security solutions. Google, Microsoft and Mozilla fixed the affected vulnerabilities in 2021 and early 2022.
Joker has been a type of malware for Android that has several time invaded Google’s official application market. This is a result of small changes to its code, which enables it to get past the Play store’s security and vetting barriers. Joker adopted an old technique from the conventional PC threat landscape to avoid detection by Google.