Detection rules › Sigma
CSExec Service Installation
Detects CSExec service installation and execution events
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Service-Control-Manager | Event ID 7045: A service was installed in the system. |
Rule body
title: CSExec Service Installation
id: a27e5fa9-c35e-4e3d-b7e0-1ce2af66ad12
status: test
description: Detects CSExec service installation and execution events
references:
- https://github.com/malcomvetter/CSExec
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-08-07
tags:
- attack.execution
- attack.t1569.002
logsource:
product: windows
service: system
detection:
selection_eid:
Provider_Name: 'Service Control Manager'
EventID: 7045
selection_service:
- ServiceName: 'csexecsvc'
- ImagePath|endswith: '\csexecsvc.exe'
condition: all of selection_*
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_eid
selection_eid:
Provider_Name: 'Service Control Manager'
EventID: 7045
Stage 2: selection_service
selection_service:
- ServiceName: 'csexecsvc'
- ImagePath|endswith: '\csexecsvc.exe'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
ImagePath | ends_with |
| field:"ImagePath" kind:ends_with value:"\csexecsvc.exe" |
Provider_Name | eq |
| field:"Provider_Name" kind:eq value:"Service Control Manager" |
ServiceName | eq |
| field:"ServiceName" kind:eq value:"csexecsvc" |