Attack surface reduction (ASR) rules deployment overview.Attack surface reduction rules can constrain software-based risky behaviors and help keep your organization safe.įor a sequential, end-to-end process of how to manage ASR rules, see: However, these behaviors are often considered risky because they're commonly abused by attackers through malware. Such software behaviors are sometimes seen in legitimate applications. Performing behaviors that apps don't usually initiate during normal day-to-day work.Running obfuscated or otherwise suspicious scripts.Launching executable files and scripts that attempt to download or run files.Configuring attack surface reduction rules in Microsoft Defender for Endpoint can help!Īttack surface reduction rules target certain software behaviors, such as: Reducing your attack surface means protecting your organization's devices and network, which leaves attackers with fewer ways to perform attacks. Your organization's attack surface includes all the places where an attacker could compromise your organization's devices or networks. Why attack surface reduction rules are important

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