Suspicious Automated Collection Command Prompt (via process_creation)

This rule detects once established within a system or network, an adversary may use automated methods for collecting internal data.

SigmamediumWindowsv1
sigma
title: Suspicious Automated Collection Command Prompt (via process_creation)
id: d0c14970-df2d-57ff-a91d-ae83ce3d96a1
status: stable
description: This rule detects once established within a system or network, an adversary may use automated methods for collecting internal data.
references:
    - https://attack.mitre.org/techniques/T1552/001/
    - https://attack.mitre.org/techniques/T1119/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1119/T1119.md
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.001/T1552.001.md
author: Huntrule Team
date: 2026-07-15
tags:
    - attack.collection
    - attack.t1119
    - attack.credential-access
    - attack.t1552.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_ext:
        CommandLine|contains:
            - '.doc'
            - '.docx'
            - '.xls'
            - '.xlsx'
            - '.ppt'
            - '.pptx'
            - '.rtf'
            - '.pdf'
            - '.txt'
    selection_other_dir:
        CommandLine|contains|all:
            - 'dir '
            - ' /b '
            - ' /s '
    selection_other_findstr:
        OriginalFileName: 'FINDSTR.EXE'
        CommandLine|contains:
            - ' /e '
            - ' /si '
    condition: selection_ext and 1 of selection_other_*
falsepositives:
    - Unknown
level: medium

Known false positives

  • Unknown

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.