Its still a mystery why this malware exists and for what purpose and what is it waiting for? What is the final payload and when will this sparrow hatch?
Read a summary from Threat Post https://threatpost.com/silver-sparrow-malware-30k-macs/164121/
Read the detail from Red Canary https://redcanary.com/blog/clipping-silver-sparrows-wings/
Apple acts to prevent further spread of Silver Sparrow Mac Malware https://9to5mac.com/2021/02/22/macos-malware-m1-apple-certificates/