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merged 3 commits into from
Aug 28, 2025
Merged

[Rule Tuning] Windows 3rd Party EDR Compatibility - Part 12 #5027

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e713305
[Rule Tuning] Windows 3rd Party EDR Compatibility - Part 12
w0rk3r Aug 26, 2025
b1f83fe
Update rules/windows/persistence_app_compat_shim.toml
w0rk3r Aug 28, 2025
21ceb90
Merge branch 'main' into 3rd_party_edr_12
w0rk3r Aug 28, 2025
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32 changes: 19 additions & 13 deletions rules/windows/persistence_app_compat_shim.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", "m365_defender", "sentinel_one_cloud_funnel"]
integration = ["endpoint", "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 = [
"logs-m365_defender.event-*",
"logs-sentinel_one_cloud_funnel.*",
"endgame-*",
"logs-crowdstrike.fdr*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -70,24 +71,29 @@ tags = [
"Data Source: Microsoft Defender for Endpoint",
"Data Source: SentinelOne",
"Data Source: Elastic Endgame",
"Data Source: Crowdstrike",
"Resources: Investigation Guide",
]
timestamp_override = "event.ingested"
type = "eql"

query = '''
registry where host.os.type == "windows" and event.type == "change" and
registry.path : (
"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Custom\\*.sdb",
"\\REGISTRY\\MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Custom\\*.sdb",
"MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Custom\\*.sdb"
) and
not process.executable :
("?:\\Program Files (x86)\\DesktopCentral_Agent\\swrepository\\1\\swuploads\\SAP-SLC\\SAPSetupSLC02_14-80001954\\Setup\\NwSapSetup.exe",
"?:\\$WINDOWS.~BT\\Sources\\SetupPlatform.exe",
"?:\\Program Files (x86)\\SAP\\SAPsetup\\setup\\NwSapSetup.exe",
"?:\\Program Files (x86)\\SAP\\SapSetup\\OnRebootSvc\\NWSAPSetupOnRebootInstSvc.exe",
"?:\\Program Files (x86)\\Kaspersky Lab\\Kaspersky Security for Windows Server\\kavfs.exe")
registry.path : "*\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AppCompatFlags\\Custom\\*.sdb" and
not process.executable : (
"?:\\Program Files (x86)\\DesktopCentral_Agent\\*\\Setup\\NwSapSetup.exe",
"?:\\$WINDOWS.~BT\\Sources\\SetupPlatform.exe",
"?:\\Program Files (x86)\\SAP\\SAPsetup\\setup\\NwSapSetup.exe",
"?:\\Program Files (x86)\\SAP\\SapSetup\\OnRebootSvc\\NWSAPSetupOnRebootInstSvc.exe",
"?:\\Program Files (x86)\\Kaspersky Lab\\Kaspersky Security for Windows Server\\kavfs.exe",

/* Crowdstrike specific exclusion as it uses NT Object paths */
"\\Device\\HarddiskVolume*\\Program Files (x86)\\DesktopCentral_Agent\\*\\Setup\\NwSapSetup.exe",
"\\Device\\HarddiskVolume*\\$WINDOWS.~BT\\Sources\\SetupPlatform.exe",
"\\Device\\HarddiskVolume*\\Program Files (x86)\\SAP\\SAPsetup\\setup\\NwSapSetup.exe",
"\\Device\\HarddiskVolume*\\Program Files (x86)\\SAP\\SapSetup\\OnRebootSvc\\NWSAPSetupOnRebootInstSvc.exe",
"\\Device\\HarddiskVolume*\\Program Files (x86)\\Kaspersky Lab\\Kaspersky Security for Windows Server\\kavfs.exe"
)
'''


Expand Down
20 changes: 5 additions & 15 deletions rules/windows/persistence_appcertdlls_registry.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2020/11/18"
integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender"]
integration = ["endpoint", "windows", "sentinel_one_cloud_funnel", "m365_defender", "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-sentinel_one_cloud_funnel.*",
"logs-m365_defender.event-*",
"logs-crowdstrike.fdr*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -59,14 +60,6 @@ AppCert DLLs are dynamic link libraries that can be configured to load with ever
- Implement enhanced monitoring and logging for the specific registry paths and related process creation activities to detect any future unauthorized changes promptly."""
risk_score = 47
rule_id = "513f0ffd-b317-4b9c-9494-92ce861f22c7"
setup = """## Setup

If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2.
Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
`event.ingested` to @timestamp.
For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
"""
severity = "medium"
tags = [
"Domain: Endpoint",
Expand All @@ -79,18 +72,15 @@ tags = [
"Data Source: Sysmon",
"Data Source: SentinelOne",
"Data Source: Microsoft Defender for Endpoint",
"Data Source: Crowdstrike",
"Resources: Investigation Guide",
]
timestamp_override = "event.ingested"
type = "eql"

query = '''
registry where host.os.type == "windows" and event.type == "change" and
registry.path : (
"HKLM\\SYSTEM\\*ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*",
"\\REGISTRY\\MACHINE\\SYSTEM\\*ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*",
"MACHINE\\SYSTEM\\*ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*"
)
registry.path : "*\\SYSTEM\\*ControlSet*\\Control\\Session Manager\\AppCertDLLs\\*"
'''


Expand Down
6 changes: 4 additions & 2 deletions rules/windows/persistence_evasion_hidden_local_account_creation.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2020/12/18"
integration = ["endpoint", "windows", "m365_defender", "sentinel_one_cloud_funnel"]
integration = ["endpoint", "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 @@ -19,6 +19,7 @@ index = [
"endgame-*",
"logs-m365_defender.event-*",
"logs-sentinel_one_cloud_funnel.*",
"logs-crowdstrike.fdr*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -68,6 +69,7 @@ tags = [
"Data Source: Sysmon",
"Data Source: Microsoft Defender for Endpoint",
"Data Source: SentinelOne",
"Data Source: Crowdstrike",
]
timestamp_override = "event.ingested"
type = "eql"
Expand Down
6 changes: 4 additions & 2 deletions rules/windows/persistence_evasion_registry_ifeo_injection.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2020/11/17"
integration = ["endpoint", "windows", "m365_defender", "sentinel_one_cloud_funnel"]
integration = ["endpoint", "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 = [
"winlogbeat-*",
"logs-m365_defender.event-*",
"logs-sentinel_one_cloud_funnel.*",
"logs-crowdstrike.fdr*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -73,6 +74,7 @@ tags = [
"Data Source: Sysmon",
"Data Source: Microsoft Defender for Endpoint",
"Data Source: SentinelOne",
"Data Source: Crowdstrike",
"Resources: Investigation Guide",
]
timestamp_override = "event.ingested"
Expand Down
6 changes: 4 additions & 2 deletions rules/windows/persistence_evasion_registry_startup_shell_folder_modified.toml
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Original file line number Diff line number Diff line change
@@ -1,8 +1,8 @@
[metadata]
creation_date = "2021/03/15"
integration = ["endpoint", "windows", "m365_defender", "sentinel_one_cloud_funnel"]
integration = ["endpoint", "windows", "m365_defender", "sentinel_one_cloud_funnel", "crowdstrike"]
maturity = "production"
updated_date = "2025/03/20"
updated_date = "2025/08/26"

[transform]
[[transform.osquery]]
Expand Down Expand Up @@ -44,6 +44,7 @@ index = [
"winlogbeat-*",
"logs-m365_defender.event-*",
"logs-sentinel_one_cloud_funnel.*",
"logs-crowdstrike.fdr*",
]
language = "eql"
license = "Elastic License v2"
Expand Down Expand Up @@ -119,6 +120,7 @@ tags = [
"Data Source: Sysmon",
"Data Source: Microsoft Defender for Endpoint",
"Data Source: SentinelOne",
"Data Source: Crowdstrike",
]
timestamp_override = "event.ingested"
type = "eql"
Expand Down
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