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XSIAM-ANALYST · Question #35

Which two actions can an analyst take to reduce the number of false positive alerts generated by a custom BIOC? (Choose two.)

The correct answer is A. Implement a BIOC rule exception. C. Implement an alert exclusion rule. Implement a BIOC rule exception: This allows you to modify the specific BIOC rule logic to exclude certain behaviors, users, or files. It is the most surgical way to stop a specific rule from triggering when the activity is known to be benign. Implement an alert exclusion rule…

Alert Tuning and Optimization

Question

Which two actions can an analyst take to reduce the number of false positive alerts generated by a custom BIOC? (Choose two.)

Options

  • AImplement a BIOC rule exception.
  • BImplement a global exception in the prevention profile.
  • CImplement an alert exclusion rule.
  • DImplement a shunt in a BIOC bypass rule.

How the community answered

(38 responses)
  • A
    84% (32)
  • B
    11% (4)
  • D
    5% (2)

Explanation

Implement a BIOC rule exception: This allows you to modify the specific BIOC rule logic to exclude certain behaviors, users, or files. It is the most surgical way to stop a specific rule from triggering when the activity is known to be benign. Implement an alert exclusion rule: Alert exclusions allow you to suppress alerts based on specific criteria (like a specific command line or signer) after the detector has already matched the activity. This effectively hides the "noise" from the incident view without necessarily changing the underlying BIOC logic.

Topics

#BIOC Rules#False Positive Reduction#Alert Exclusion#Rule Exception

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