|**Emulation engine** <br/> The emulation engine dynamically unpacks malware and examines how they would behave at runtime. The dynamic emulation of the content and scanning both the behavior during emulation and the memory content at the end of emulation defeat malware packers and expose the behavior of polymorphic malware.|**Reputation ML engine** <br/> Domain-expert reputation sources and models from across Microsoft are queried to block threats that are linked to malicious or suspicious URLs, domains, emails, and files. Sources include Windows Defender SmartScreen for URL reputation models and Defender for Office 365 for email attachment expert knowledge, among other Microsoft services through the Microsoft Intelligent Security Graph.|
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