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[Rule Tuning] Suspicious PrintSpooler Service Executable File Creation (#4976)
Co-authored-by: Mika Ayenson, PhD <[email protected]> (cherry picked from commit 5f7b821)
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rules/windows/privilege_escalation_printspooler_service_suspicious_file.toml

Lines changed: 12 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -2,7 +2,7 @@
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creation_date = "2020/08/14"
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integration = ["endpoint", "windows", "m365_defender", "sentinel_one_cloud_funnel"]
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maturity = "production"
5-
updated_date = "2025/03/20"
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updated_date = "2025/08/13"
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[rule]
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author = ["Elastic"]
@@ -87,54 +87,55 @@ event.category : "file" and host.os.type : "windows" and event.type : "creation"
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[[rule.filters]]
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[rule.filters.meta]
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negate = false
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[rule.filters.query.wildcard."file.path"]
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case_insensitive = true
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value = "?:\\\\Windows\\\\Sys?????\\\\*"
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[[rule.filters]]
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[[rule.filters]]
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[rule.filters.meta]
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negate = true
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[rule.filters.query.wildcard."file.path"]
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case_insensitive = true
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value = "?:\\\\Windows\\\\Sys?????\\\\PrintConfig.dll"
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[[rule.filters]]
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[[rule.filters]]
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[rule.filters.meta]
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negate = true
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[rule.filters.query.wildcard."file.path"]
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case_insensitive = true
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value = "?:\\Windows\\Sys?????\\u005lrs.dll"
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[[rule.filters]]
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value = "?:\\\\Windows\\\\Sys?????\\\\x5lrs.dll"
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[[rule.filters]]
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[rule.filters.meta]
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negate = true
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[rule.filters.query.wildcard."file.path"]
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case_insensitive = true
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value = "?:\\Windows\\system32\\spool\\DRIVERS\\u0064\\\\*.dll"
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[[rule.filters]]
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value = "?:\\\\Windows\\\\system32\\\\spool\\\\DRIVERS\\\\x64\\\\*.dll"
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[[rule.filters]]
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[rule.filters.meta]
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negate = true
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[rule.filters.query.wildcard."file.path"]
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case_insensitive = true
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value = "?:\\\\Windows\\\\system32\\\\spool\\\\DRIVERS\\\\W32X86\\\\*.dll"
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[[rule.filters]]
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[[rule.filters]]
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[rule.filters.meta]
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negate = true
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[rule.filters.query.wildcard."file.path"]
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case_insensitive = true
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value = "?:\\Windows\\system32\\spool\\PRTPROCS\\u0064\\\\*.dll"
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[[rule.filters]]
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value = "?:\\\\Windows\\\\system32\\\\spool\\\\PRTPROCS\\\\x64\\\\*.dll"
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[[rule.filters]]
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[rule.filters.meta]
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negate = true
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[rule.filters.query.wildcard."file.path"]
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case_insensitive = true
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value = "?:\\\\Windows\\\\system32\\\\spool\\\\{????????-????-????-????-????????????}\\\\*.dll"
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]

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