Detection rules › Sigma

New Service Creation Using Sc.EXE

Status
test
Severity
low
Log source
product windows, category process_creation
Author
Timur Zinniatullin, Daniil Yugoslavskiy, oscd.community
Source
github.com/SigmaHQ/sigma

Detects the creation of a new service using the "sc.exe" utility.

MITRE ATT&CK coverage

Event coverage

Rule body yaml

title: New Service Creation Using Sc.EXE
id: 85ff530b-261d-48c6-a441-facaa2e81e48
related:
    - id: c02e96b7-c63a-4c47-bd83-4a9f74afcfb2 # Using PowerShell
      type: similar
status: test
description: Detects the creation of a new service using the "sc.exe" utility.
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1543.003/T1543.003.md
author: Timur Zinniatullin, Daniil Yugoslavskiy, oscd.community
date: 2023-02-20
modified: 2025-09-01
tags:
    - attack.persistence
    - attack.privilege-escalation
    - attack.t1543.003
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\sc.exe'
        CommandLine|contains|all:
            - 'create'
            - 'binPath'
    filter_optional_dropbox:
        ParentImage|startswith:
            - 'C:\Program Files (x86)\Dropbox\Client\'
            - 'C:\Program Files\Dropbox\Client\'
        ParentImage|endswith: '\Dropbox.exe'
    condition: selection and not 1 of filter_optional_*
falsepositives:
    - Legitimate administrator or user creates a service for legitimate reasons.
    - Software installation
level: low

Stages and Predicates

Stage 0: condition

selection and not 1 of filter_optional_*

Stage 1: selection

selection:
    Image|endswith: '\sc.exe'
    CommandLine|contains|all:
        - 'create'
        - 'binPath'

Stage 2: not filter_optional_dropbox

filter_optional_dropbox:
    ParentImage|startswith:
        - 'C:\Program Files (x86)\Dropbox\Client\'
        - 'C:\Program Files\Dropbox\Client\'
    ParentImage|endswith: '\Dropbox.exe'

Exclusions

Top-level NOT(...) conjuncts: predicates this rule actively suppresses.

FieldKindExcluded values
ParentImagestarts_withC:\Program Files (x86)\Dropbox\Client\
ParentImagestarts_withC:\Program Files\Dropbox\Client\
ParentImageends_with\Dropbox.exe

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.

FieldKindValues
CommandLinematch
  • binPath corpus 6 (sigma 5, splunk 1)
  • create corpus 24 (sigma 17, splunk 7)
Imageends_with
  • \sc.exe corpus 30 (sigma 30)