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Microsoft Recommends Default-Deny (Sort of)
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<blockquote data-quote="Andy Ful" data-source="post: 814667" data-attributes="member: 32260"><p>WDAC can block .NET DLLs (like system.management.automation.dll), but most other solutions (SRP, Bouncer, SOB, etc.) cannot. On some systems, PowerShell uses also the native image library system.management.automation.ni.dll, that can be blocked by SRP, Bouncer, SOB, etc.</p><p>Blocking LOLBins can be useful in default-allow setup, especially in organizations and enterprises. The executables included in <a href="https://gbhackers.com/microsoft-legitimate-apps/" target="_blank">Microsoft Published a List of Legitimate Apps that Attackers Abuse</a>, are recommended to block in organizations and enterprises.</p></blockquote><p></p>
[QUOTE="Andy Ful, post: 814667, member: 32260"] WDAC can block .NET DLLs (like system.management.automation.dll), but most other solutions (SRP, Bouncer, SOB, etc.) cannot. On some systems, PowerShell uses also the native image library system.management.automation.ni.dll, that can be blocked by SRP, Bouncer, SOB, etc. Blocking LOLBins can be useful in default-allow setup, especially in organizations and enterprises. The executables included in [URL='https://gbhackers.com/microsoft-legitimate-apps/']Microsoft Published a List of Legitimate Apps that Attackers Abuse[/URL], are recommended to block in organizations and enterprises. [/QUOTE]
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