ClickFix - Disabling AMSI Post-Paste (T1562.001)

Ibrahim Saud@tektrix

•updated Jun 21, 2026•0•0•2

Detects the polymorphic script's initial action: patching the AmsiScanBuffer to prevent Defender from catching the subsequent payload. This rule specifically looks for PowerShell commands containing 'amsiInitFailed' or 'AmsiScanBuffer', which are indicators of attempts to bypass AMSI.