FACT (Firmware Analysis and Comparison Tool) Malware Detection is a feature of the FACT platform by aDolus Technology, designed to identify malicious code and ransomware in software packages, particularly within critical infrastructure and operational technology (OT) environments. The tool consolidates results from multiple antivirus scanning sources and applies YARA rules to detect malware by identifying patterns or characteristics associated with specific malware types or families. This multi-source approach allows FACT to provide a more nuanced assessment of whether a given package is likely to contain malware. A key capability of FACT is its false positive reduction mechanism. Rather than relying solely on individual AV engine flags, FACT performs additional analysis and cross-checks component relationships to indicate when a reported detection is likely a false positive. This is particularly relevant in safety-critical OT environments where AV quarantine actions can disrupt operations. The platform also addresses ransomware detection, helping organizations identify ransomware threats before they are introduced into critical systems — including those targeted via supply chain attack vectors.