title: IPS Action Taken
id: b557ee31-1109-58a0-8d48-f5f61961ceb1
custom_id: wf-comp-002
status: stable
level: high
description: |
    Detects intrusion prevention system (IPS) events where protective action
    was taken (block, drop, reset). These indicate the IPS actively prevented
    a detected attack from succeeding.
author: WitFoo
date: 2026-02-21
tags:
    - attack.initial_access
    - attack.t1190
references:
    - https://attack.mitre.org/techniques/T1190/
logsource:
    product: witfoo
    service: artifact-exporter
detection:
    selection:
        messageType: "ids_action"
    selection_action:
        action|contains:
            - "block"
            - "drop"
            - "reset"
            - "deny"
    condition: selection or selection_action
fields:
    - clientIP
    - serverIP
    - serverPort
    - ruleName
    - ruleCategory
    - action
    - matchedLeadRules
falsepositives:
    - IPS blocking legitimate traffic due to signature false positives
    - Rate limiting actions during traffic spikes
