Suspicious File Download Through Bitsadmin (via process_creation)
This rule detects use of bitsadmin downloading a file
SigmamediumWindowsv1
sigma
suspicious-file-download-through-bitsadmin-via-process-creation
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.