Suspicious File Download Through Bitsadmin (via process_creation)

This rule detects use of bitsadmin downloading a file

SigmamediumWindowsv1
sigma
title: Suspicious File Download Through Bitsadmin (via process_creation)
id: d4b7cd24-3832-56a4-a9b0-95679c2d7fc7
status: stable
description: This rule detects use of bitsadmin downloading a file
references:
    - https://attack.mitre.org/techniques/T1105/
    - https://attack.mitre.org/techniques/T1036/003/
    - https://attack.mitre.org/techniques/T1197/
    - https://blog.netspi.com/15-ways-to-download-a-file/#bitsadmin
    - https://isc.sans.edu/diary/22264
    - https://lolbas-project.github.io/lolbas/Binaries/Bitsadmin/
author: Huntrule Team
date: 2026-04-05
tags:
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1197
    - attack.s0190
    - attack.t1036.003
    - attack.command-and-control
    - attack.t1105
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\bitsadmin.exe'
        - OriginalFileName: 'bitsadmin.exe'
    selection_cmd:
        CommandLine|contains: ' /transfer '
    selection_cli_1:
        CommandLine|contains:
            - ' /create '
            - ' /addfile '
    selection_cli_2:
        CommandLine|contains: 'http'
    condition: selection_img and (selection_cmd or all of selection_cli_*)
falsepositives:
    - Unknown
level: medium
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_bitsadmin_download/info.yml
simulation:
    - type: atomic-red-team
      name: Windows - BITSAdmin BITS Download
      technique: T1105
      atomic_guid: a1921cd3-9a2d-47d5-a891-f1d0f2a7a31b

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.