AMSI Bypass via amsiInitFailed Flag Set Through PowerShell Reflection
Detects attempts to bypass the Antimalware Scan Interface (AMSI) in PowerShell by searching for common reflection-based patterns, such as accessing 'AmsiUtils', modifying 'amsiInitFailed' flags, or using 'BindingFlags' to manipulate non-public members. These techniques are commonly used to disable AMSI scanning within a malicious PowerShell script's memory space.
Splunk (SPL)
