huntrule

Suspicious Rundll32 Execution Without CommandLine Parameters (via process_creation)

This rule detects anomalous start of rundll32.exe without any parameters as found in CobaltStrike beacon behavior

SigmahighWindowsv1
Full detection rule

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Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.