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[Rule Tuning] Windows Service Installed via an Unusual Client (#3671)

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* [Rule Tuning] Windows Service Installed via an Unusual Client

* Update privilege_escalation_windows_service_via_unusual_client.toml

* Update rules/windows/privilege_escalation_windows_service_via_unusual_client.toml

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>

---------

Co-authored-by: Samirbous <64742097+Samirbous@users.noreply.github.com>
This commit is contained in:
Jonhnathan
2024-05-15 10:31:44 -03:00
committed by GitHub
parent f3585da503
commit 0eef7f62ff
1 changed files with 10 additions and 7 deletions
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rules/windows/privilege_escalation_windows_service_via_unusual_client.toml
+10 -7
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@@ -4,7 +4,7 @@ integration = ["system", "windows"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2024/01/09"
updated_date = "2024/05/14"
[rule]
author = ["Elastic"]
@@ -15,7 +15,7 @@ administrator to SYSTEM.
"""
from = "now-9m"
index = ["winlogbeat-*", "logs-system.*", "logs-windows.*"]
language = "kuery"
language = "eql"
license = "Elastic License v2"
name = "Windows Service Installed via an Unusual Client"
references = [
@@ -44,14 +44,17 @@ Audit Security System Extension (Success)
severity = "high"
tags = ["Domain: Endpoint", "OS: Windows", "Use Case: Threat Detection", "Tactic: Privilege Escalation"]
timestamp_override = "event.ingested"
type = "query"
type = "eql"
query = '''
event.action:"service-installed" and
(winlog.event_data.ClientProcessId:"0" or winlog.event_data.ParentProcessId:"0") and
configuration where host.os.type == "windows" and
event.action == "service-installed" and
(winlog.event_data.ClientProcessId == "0" or winlog.event_data.ParentProcessId == "0") and
not winlog.event_data.ServiceFileName : (
"C:\\Windows\\VeeamVssSupport\\VeeamGuestHelper.exe" or
"%SystemRoot%\\system32\\Drivers\\Crowdstrike\\17706-CsInstallerService.exe"
"?:\\Windows\\VeeamVssSupport\\VeeamGuestHelper.exe",
"?:\\Windows\\VeeamLogShipper\\VeeamLogShipper.exe",
"%SystemRoot%\\system32\\Drivers\\Crowdstrike\\*-CsInstallerService.exe",
"\"%windir%\\AdminArsenal\\PDQInventory-Scanner\\service-1\\PDQInventory-Scanner-1.exe\" "
)
'''