How to check for Silver Sparrow and Pirrit on M1 Mac

There are new reports of Malware and Adware built into/for the M1 Chip - Silver Sparrow and Pirrit - How do we check our Macbooks to determine if we have it or not?

Mac Malware Targets Apple's In-House M1 Processor Posted: 2021-02-18T16:34:57.000Z

Details: "A malicious adware-distributing application specifically targets Apple's new M1 SoC,

used in its newest-generation MacBook Air, MacBook Pro and Mac mini devices."

Mysterious Silver Sparrow Malware Found Nesting on 30K Macs Posted: 2021-02-19T19:33:14.000Z Details: "A second malware that targets Macs with Apple's in-house M1 chip is infecting machines worldwide -- but it's unclear why."

First Malware Designed for Apple M1 Chip Discovered in the Wild Posted: 2021-02-19T06:56:15.000Z Details: "One of the first malware samples tailored to run natively on Apple's M1 chips has been discovered, suggesting a new development that indicates that bad actors have begun adapting malicious software to target the company's latest generation of Macs powered by its own processors.

[Re-Titled by Moderator]