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[Rule Tuning] Replace legacy winlog.api usage #4647

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Merged
merged 2 commits into from
Apr 24, 2025
Merged

[Rule Tuning] Replace legacy winlog.api usage #4647

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e6dc0fe
[Rule Tuning] Replace legacy winlog.api usage
w0rk3r Apr 23, 2025
08ab7c5
Merge branch 'main' into rt_winlogapi
shashank-elastic Apr 24, 2025
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4 changes: 2 additions & 2 deletions rules/windows/defense_evasion_clearing_windows_security_logs.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
creation_date = "2020/11/12"
integration = ["system", "windows"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/04/23"

[rule]
author = ["Elastic", "Anabella Cristaldi"]
Expand Down Expand Up @@ -62,7 +62,7 @@ timestamp_override = "event.ingested"
type = "query"

query = '''
event.action:("audit-log-cleared" or "Log clear") and winlog.api:"wineventlog" and
host.os.type:windows and event.action:("audit-log-cleared" or "Log clear") and
not winlog.provider_name:"AD FS Auditing"
'''

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4 changes: 2 additions & 2 deletions rules/windows/persistence_group_modification_by_system.toml
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Expand Up @@ -2,7 +2,7 @@
creation_date = "2024/06/26"
integration = ["system", "windows"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/04/23"

[rule]
author = ["Elastic"]
Expand Down Expand Up @@ -69,7 +69,7 @@ timestamp_override = "event.ingested"
type = "eql"

query = '''
iam where winlog.api == "wineventlog" and event.code == "4728" and
iam where host.os.type == "windows" and event.code == "4728" and
winlog.event_data.SubjectUserSid : "S-1-5-18" and

/* DOMAIN_USERS and local groups */
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4 changes: 2 additions & 2 deletions rules/windows/persistence_user_account_added_to_privileged_group_ad.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
creation_date = "2021/01/09"
integration = ["system", "windows"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/04/23"

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

query = '''
iam where winlog.api == "wineventlog" and event.action == "added-member-to-group" and
iam where host.os.type == "windows" and event.action == "added-member-to-group" and
(
(
group.name : (
Expand Down
5 changes: 2 additions & 3 deletions rules/windows/persistence_user_account_creation_event_logs.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
creation_date = "2021/01/04"
integration = ["system", "windows"]
maturity = "development"
updated_date = "2025/02/21"
updated_date = "2025/04/23"
min_stack_version = "8.14.0"
min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."

Expand Down Expand Up @@ -31,8 +31,7 @@ timestamp_override = "event.ingested"
type = "query"

query = '''
event.module:("system" or "security") and winlog.api:"wineventlog" and
(event.code:"4720" or event.action:"added-user-account")
host.os.type:windows and event.module:("system" or "security") and (event.code:"4720" or event.action:"added-user-account")
'''
note = """## Triage and analysis

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