A new Mac malware known as Silver Sparrow has silently infected almost 30,000 Mac devices with malware whose purpose is a mystery. The malware has been seen distributed as two different files named ‘updater.pkg’ [VirusTotal] or ‘update.kg’ The only difference is that the update.pkg includes both an Intel x86_64 and an Apple M1 binary. While running, the malware will check for the presence of the. presence of a. folder and if found, will remove itself and all associated files. The researchers have not been able to determine what triggers this kill switch.
Source: https://www.bleepingcomputer.com/news/security/new-silver-sparrow-malware-infects-30-000-macs-for-unknown-purpose/