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[Rule Tuning] SeDebugPrivilege Enabled by a Suspicious Process #6648

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[Rule Tuning] SeDebugPrivilege Enabled by a Suspicious Process #6648

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16 changes: 14 additions & 2 deletions rules/windows/privilege_escalation_tokenmanip_sedebugpriv_enabled.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
creation_date = "2022/10/20"
integration = ["windows", "system"]
maturity = "production"
updated_date = "2026/05/04"
updated_date = "2026/08/13"

[rule]
author = ["Elastic"]
Expand Down Expand Up @@ -87,18 +87,31 @@ any where host.os.type == "windows" and event.provider: "Microsoft-Windows-Secur
"?:\\Program Files (x86)\\*",
"?:\\Program Files\\*",
"?:\\Users\\*\\AppData\\Local\\Temp\\*-*\\DismHost.exe",
"?:\\Windows\\CCM\\SCNotification.exe",
"?:\\Windows\\explorer.exe",
"?:\\Windows\\System32\\auditpol.exe",
"?:\\Windows\\System32\\AutoModeDetect.exe",
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terrancedejesus marked this conversation as resolved.
"?:\\Windows\\System32\\cleanmgr.exe",
"?:\\Windows\\System32\\dllhost.exe",

@eric-forte-elastic eric-forte-elastic Aug 17, 2026

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Just double checking this can be used as a LOLBin right? Are we sure we want to have such a broad exclusion on it for this rule?

@terrancedejesus terrancedejesus Aug 24, 2026

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agreed.

@terrancedejesus terrancedejesus Aug 24, 2026

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Suggested change
"?:\\Windows\\System32\\dllhost.exe",

"?:\\Windows\\System32\\inetsrv\\w3wp.exe",

@terrancedejesus terrancedejesus Aug 24, 2026

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Same thing here. w3wp.exe is IIS. Plausible a webapp RCE is exploited with a chain to set SeDebugPrivilege if app pool identities are misconfigured or overly permissive.

@terrancedejesus terrancedejesus Aug 24, 2026

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Suggested change
"?:\\Windows\\System32\\inetsrv\\w3wp.exe",

"?:\\Windows\\System32\\lsass.exe",
"?:\\Windows\\System32\\mmc.exe",
"?:\\Windows\\System32\\MRT.exe",
"?:\\Windows\\System32\\msiexec.exe",
"?:\\Windows\\System32\\NETSTAT.EXE",
"?:\\Windows\\System32\\netsh.exe",
"?:\\Windows\\System32\\sdiagnhost.exe",
"?:\\Windows\\System32\\ServerManager.exe",
"?:\\Windows\\System32\\SystemPropertiesAdvanced.exe",
"?:\\Windows\\System32\\taskhostw.exe",
"?:\\Windows\\System32\\taskkill.exe",
"?:\\Windows\\System32\\tasklist.exe",
"?:\\Windows\\System32\\wbem\\WmiPrvSe.exe",
"?:\\Windows\\System32\\WerFault.exe",
"?:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell_ise.exe",
"?:\\Windows\\System32\\wsmprovhost.exe",
"?:\\Windows\\SysWOW64\\msiexec.exe",
"?:\\Windows\\SysWOW64\\taskkill.exe",
"?:\\Windows\\SysWOW64\\wbem\\WmiPrvSe.exe",
"?:\\Windows\\SysWOW64\\WerFault.exe",
Comment on lines +95 to 116
"?:\\Windows\\WinSxS\\*"
Expand All @@ -118,4 +131,3 @@ reference = "https://attack.mitre.org/techniques/T1134/"
id = "TA0004"
name = "Privilege Escalation"
reference = "https://attack.mitre.org/tactics/TA0004/"

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