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[Rule Tuning] Windows 3rd Party EDR Compatibility - Part 5 #5020

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Merged
merged 3 commits into from
Aug 28, 2025
Merged

[Rule Tuning] Windows 3rd Party EDR Compatibility - Part 5 #5020

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e63904b
[Rule Tuning] Windows 3rd Party EDR Compatibility - Part 5
w0rk3r Aug 26, 2025
b517d67
Update defense_evasion_ms_office_suspicious_regmod.toml
w0rk3r Aug 28, 2025
e99bdd0
Merge branch 'main' into 3rd_part_edr_5
w0rk3r Aug 28, 2025
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6 changes: 4 additions & 2 deletions rules/windows/defense_evasion_misc_lolbin_connecting_to_the_internet.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2020/02/18"
integration = ["endpoint", "windows"]
integration = ["endpoint", "windows", "sentinel_one_cloud_funnel"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/08/26"

[transform]
[[transform.osquery]]
Expand Down Expand Up @@ -43,6 +43,7 @@ index = [
"logs-endpoint.events.process-*",
"logs-endpoint.events.network-*",
"logs-windows.sysmon_operational-*",
"logs-sentinel_one_cloud_funnel.*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -111,6 +112,7 @@ tags = [
"Tactic: Defense Evasion",
"Resources: Investigation Guide",
"Data Source: Elastic Defend",
"Data Source: SentinelOne",
"Data Source: Sysmon",
]
type = "eql"
Expand Down
37 changes: 12 additions & 25 deletions rules/windows/defense_evasion_ms_office_suspicious_regmod.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2022/01/12"
integration = ["windows", "m365_defender", "sentinel_one_cloud_funnel"]
integration = ["windows", "m365_defender", "sentinel_one_cloud_funnel", "crowdstrike"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/08/26"

[rule]
author = ["Elastic"]
Expand All @@ -18,6 +18,7 @@ index = [
"endgame-*",
"logs-m365_defender.event-*",
"logs-sentinel_one_cloud_funnel.*",
"logs-crowdstrike.fdr*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -82,35 +83,21 @@ tags = [
"Data Source: Sysmon",
"Data Source: Microsoft Defender for Endpoint",
"Data Source: SentinelOne",
"Data Source: Crowdstrike",
]
timestamp_override = "event.ingested"
type = "eql"

query = '''
registry where host.os.type == "windows" and event.type == "change" and registry.value : ("AccessVBOM", "VbaWarnings") and
registry.path : (
/* Sysmon */
"HKU\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"HKU\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings",
"HKU\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"HKU\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings",
/* MDE */
"HKCU\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"HKCU\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings",
"HKCU\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"HKCU\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings",
/* Endgame */
"\\REGISTRY\\USER\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"\\REGISTRY\\USER\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings",
"\\REGISTRY\\USER\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"\\REGISTRY\\USER\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings",
/* SentinelOne */
"USER\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"USER\\S-1-5-21-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings",
"USER\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM",
"USER\\S-1-12-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings"
) and
registry where host.os.type == "windows" and event.type == "change" and
registry.value : ("AccessVBOM", "VbaWarnings") and
registry.data.strings : ("0x00000001", "1")

/*
Full registry key paths omitted due to data source variations:
"HKCU\\S-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\AccessVBOM"
"HKCU\\S-1-*\\SOFTWARE\\Microsoft\\Office\\*\\Security\\VbaWarnings"
*/
'''


Expand Down
6 changes: 4 additions & 2 deletions rules/windows/defense_evasion_mshta_beacon.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2020/09/02"
integration = ["endpoint", "windows"]
integration = ["endpoint", "windows", "sentinel_one_cloud_funnel"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/08/26"

[rule]
author = ["Elastic"]
Expand All @@ -16,6 +16,7 @@ index = [
"logs-endpoint.events.network-*",
"winlogbeat-*",
"logs-windows.sysmon_operational-*",
"logs-sentinel_one_cloud_funnel.*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -65,6 +66,7 @@ tags = [
"Use Case: Threat Detection",
"Tactic: Defense Evasion",
"Data Source: Elastic Defend",
"Data Source: SentinelOne",
"Data Source: Sysmon",
"Resources: Investigation Guide",
]
Expand Down
6 changes: 4 additions & 2 deletions rules/windows/defense_evasion_msxsl_network.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2020/03/18"
integration = ["endpoint", "windows"]
integration = ["endpoint", "windows", "sentinel_one_cloud_funnel"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/08/26"

[rule]
author = ["Elastic"]
Expand All @@ -16,6 +16,7 @@ index = [
"logs-endpoint.events.process-*",
"logs-endpoint.events.network-*",
"logs-windows.sysmon_operational-*",
"logs-sentinel_one_cloud_funnel.*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -64,6 +65,7 @@ tags = [
"Use Case: Threat Detection",
"Tactic: Defense Evasion",
"Data Source: Elastic Defend",
"Data Source: SentinelOne",
"Data Source: Sysmon",
"Resources: Investigation Guide",
]
Expand Down
6 changes: 4 additions & 2 deletions rules/windows/defense_evasion_ntlm_downgrade.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2025/04/14"
integration = ["endpoint", "m365_defender", "sentinel_one_cloud_funnel", "windows"]
integration = ["endpoint", "m365_defender", "sentinel_one_cloud_funnel", "windows", "crowdstrike"]
maturity = "production"
updated_date = "2025/07/02"
updated_date = "2025/08/26"

[rule]
author = ["Elastic"]
Expand All @@ -17,6 +17,7 @@ index = [
"logs-m365_defender.event-*",
"logs-sentinel_one_cloud_funnel.*",
"logs-windows.sysmon_operational-*",
"logs-crowdstrike.fdr*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -65,6 +66,7 @@ tags = [
"Data Source: Microsoft Defender for Endpoint",
"Data Source: SentinelOne",
"Data Source: Sysmon",
"Data Source: Crowdstrike",
"Resources: Investigation Guide",
]
timestamp_override = "event.ingested"
Expand Down
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