Hunting MacSync Stealer infrastructure through behavioral pivots

MacSync Stealer, a macOS information stealer, has been observed using rapidly changing infrastructure for its operations. Microsoft Defender Experts identified persistent behavioral patterns, such as specific request characteristics and upload methods, that allow for tracking the malware's activity even as its command-and-control domains rotate. These durable pivots enable defenders to investigate payload delivery, data collection, staging, and exfiltration.