Suspicious Service Name

SIGMA detection rule by Zach Mathis · GPL-2.0

Tries to look for random-looking service names that are often used by malware for persistence.

author: Zach Mathis
date: 2022-02-06
modified: 2024-10-01

title: 'Suspicious Service Name'
details: 'Svc: %ServiceName% ¦ Path: %ImagePath% ¦ Acct: %AccountName% ¦ StartType: %StartType%'
description: Tries to look for random-looking service names that are often used by malware for persistence.

id: cc429813-21db-4019-b520-2f19648e1ef1
level: high
status: stable
logsource:
    product: windows
    service: system
detection:
    selection:
        Channel: 'System'
        EventID: 7045
    selection_SuspiciousServiceNames:
        ServiceName|re: '^[a-zA-Z]{16}'
    condition: selection and selection_SuspiciousServiceNames
falsepositives:
    - Expect false positives are legitimate services will use names that look random.
tags:
    - attack.persistence
    - attack.t1543.003
references:
    - https://attack.mitre.org/techniques/T1543/003/
ruletype: Hayabusa

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

eb78336f-e70b-4654-836b-3dba2230ab48

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Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

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Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

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