Detection rules › Sigma
Suspicious Service Path Modification
Detects service path modification via the "sc" binary to a suspicious command or path
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | T1543.003 Create or Modify System Process: Windows Service |
| Privilege Escalation | T1543.003 Create or Modify System Process: Windows Service |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
title: Suspicious Service Path Modification
id: 138d3531-8793-4f50-a2cd-f291b2863d78
status: test
description: Detects service path modification via the "sc" binary to a suspicious command or path
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1543.003/T1543.003.md
- https://web.archive.org/web/20180331144337/https://www.fireeye.com/blog/threat-research/2018/03/sanny-malware-delivery-method-updated-in-recently-observed-attacks.html
author: Victor Sergeev, oscd.community, Nasreddine Bencherchali (Nextron Systems)
date: 2019-10-21
modified: 2022-11-18
tags:
- attack.persistence
- attack.privilege-escalation
- attack.t1543.003
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\sc.exe'
CommandLine|contains|all:
- 'config'
- 'binPath'
CommandLine|contains:
# Add more suspicious commands or binaries
- 'powershell'
- 'cmd '
- 'mshta'
- 'wscript'
- 'cscript'
- 'rundll32'
- 'svchost'
- 'dllhost'
- 'cmd.exe /c'
- 'cmd.exe /k'
- 'cmd.exe /r'
- 'cmd /c'
- 'cmd /k'
- 'cmd /r'
# Add more suspicious paths
- 'C:\Users\Public'
- '\Downloads\'
- '\Desktop\'
- '\Microsoft\Windows\Start Menu\Programs\Startup\'
- 'C:\Windows\TEMP\'
- '\AppData\Local\Temp'
condition: selection
falsepositives:
- Unlikely
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '\sc.exe'
CommandLine|contains|all:
- 'config'
- 'binPath'
CommandLine|contains:
- 'powershell'
- 'cmd '
- 'mshta'
- 'wscript'
- 'cscript'
- 'rundll32'
- 'svchost'
- 'dllhost'
- 'cmd.exe /c'
- 'cmd.exe /k'
- 'cmd.exe /r'
- 'cmd /c'
- 'cmd /k'
- 'cmd /r'
- 'C:\Users\Public'
- '\Downloads\'
- '\Desktop\'
- '\Microsoft\Windows\Start Menu\Programs\Startup\'
- 'C:\Windows\TEMP\'
- '\AppData\Local\Temp'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | match |
|
Image | ends_with |
|