Explore how to integrate Open Source Intelligence (OSINT) into Reverse Engineering (RE) workflows to streamline malware analysis. Learn techniques for leveraging OSINT to overcome anti-analysis features and cryptographic services that make traditional RE more challenging. Discover methods to track down valuable information, sometimes directly from developers, including occasional access to full documentation. Understand how to incorporate these OSINT findings back into the analysis process, potentially accelerating time-to-value during critical investigations. This 26-minute conference talk, presented by Nicholas Carroll at BSidesLV, offers insights into adapting RE techniques to combat increasingly sophisticated malware development practices.