Apple M1-native malware has been discovered by an independent macOS security researcher. The GoSearch22 Safari browser extension, which is linked to the infamous Pirrit adware family, can run on any M1 silicon-based device, such as the late 2020 models of the MacBook Air, MacBook Pro, and Mac Mini.
https://www.notebookcheck.net/Apple-M1-native-malware-targets-users-of-the-new-MacBook-Pro-MacBook-Air-and-Mac-Mini-with-unwanted-Pirrit-adware.522615.0.html