[Rule Tuning] Machine Learning Detected a Suspicious Windows Event with a High Malicious Probability Score (#5523) (#5686)
Add EQL exclusions for benign activity: Opera GX renderer children, Slack creating slack children, Node using playwright to create chrome process Python editors accessing reg.exe Logitech manager activity and Zabbix script paths.
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@@ -2,7 +2,7 @@
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creation_date = "2023/10/16"
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integration = ["problemchild", "endpoint"]
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maturity = "production"
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updated_date = "2025/12/17"
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updated_date = "2026/02/05"
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[rule]
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author = ["Elastic"]
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@@ -102,7 +102,14 @@ not (process.name : "opera.exe" and process.parent.name : "opera.exe") and
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not (process.parent.executable : "C:\\Windows\\System32\\svchost.exe" and
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process.name : ("UCPDMgr.exe", "sdbinst.exe", "gpupdate.exe", "rundll32.exe", "taskhostw.exe", "taskeng.exe", "rdpclip.exe", "firefox.exe", "w3wp.exe")) and
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not process.executable : ("C:\\Program Files\\*.exe", "C:\\Program Files (x86)\\*.exe") and
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not (process.name : "MpCmdRun.exe" and process.parent.name : ("MsMpEng.exe", "MpCmdRun.exe", "svchost.exe"))
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not (process.name : "MpCmdRun.exe" and process.parent.name : ("MsMpEng.exe", "MpCmdRun.exe", "svchost.exe")) and
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not (process.name : "slack.exe" and process.parent.name : "slack.exe") and
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not (process.name : "reg.exe" and process.parent.name : "pycharm64.exe") and
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not (process.name : "reg.exe" and process.parent.name : "rider64.exe") and
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not (process.name : "LogiLuUpdater.exe" and process.parent.name : "LogiOptionsMgr.exe") and
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not (process.name : "chrome.exe" and process.parent.name : "node.exe" and process.command_line : "*playwright*") and
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not (process.name : "powershell.exe" and process.command_line : "*\\Zabbix_Scripts\\*.ps1*") and
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not (process.parent.name : "opera.exe" and process.command_line: "*--type=renderer*")
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'''
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