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[Rule Tuning] First Time Seen NewCredentials Logon Process #4844

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Merged
merged 3 commits into from
Jun 24, 2025
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[Rule Tuning] First Time Seen NewCredentials Logon Process #4844

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[Rule Tuning] First Time Seen NewCredentials Logon Process
w0rk3r Jun 24, 2025
f1377e7
Update rules/windows/privilege_escalation_newcreds_logon_rare_process…
w0rk3r Jun 24, 2025
96088cf
Merge branch 'main' into rt_0
Mikaayenson Jun 24, 2025
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7 changes: 5 additions & 2 deletions rules/windows/privilege_escalation_newcreds_logon_rare_process.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
creation_date = "2023/11/15"
integration = ["system", "windows"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/06/24"

[rule]
author = ["Elastic"]
Expand Down Expand Up @@ -65,7 +65,10 @@ timestamp_override = "event.ingested"
type = "new_terms"

query = '''
event.category:"authentication" and host.os.type:"windows" and winlog.logon.type:"NewCredentials" and winlog.event_data.LogonProcessName:(Advapi* or "Advapi ") and not winlog.event_data.SubjectUserName:*$ and not process.executable :???\\Program?Files*
event.category:"authentication" and host.os.type:"windows" and winlog.logon.type:"NewCredentials" and
winlog.event_data.LogonProcessName:Advapi* and
not winlog.event_data.SubjectUserName:*$ and
not process.executable: (C\:\\Program*Files*\(x86\)\\*.exe or C\:\\Program*Files\\*.exe)
'''


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