New ResolverRAT Malware Targets Global Pharma and Healthcare Sectors

ResolverRAT is a sophisticated remote access trojan (RAT) identified in March 2025, employing advanced in-memory execution and runtime API resolution to evade detection. It targets corporate employees via phishing emails, leading to stealthy in-memory execution and secure command-and-control communications. The malware exfiltrates data in segments using a chunking mechanism, minimizing detection during large transfers.