blue-team-tools/rules/windows/process_creation/proc_creation_win_bitsadmin_download.yml

title: Bitsadmin Download
id: d059842b-6b9d-4ed1-b5c3-5b89143c6ede
status: experimental
description: Detects usage of bitsadmin downloading a file
references:
    - 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/
tags:
    - attack.defense_evasion
    - attack.persistence
    - attack.t1197
    - attack.s0190
    - attack.t1036.003    
date: 2017/03/09
modified: 2021/07/16
author: Michael Haag, FPT.EagleEye 
logsource:
    category: process_creation
    product: windows
detection:
    selection1:
        Image|endswith:
            - '\bitsadmin.exe'
    susp_flag_1:
        CommandLine|contains:
            - ' /transfer '
    susp_flag_2:
        CommandLine|contains:
            - ' /create '
            - ' /addfile '
    http_flag:
        CommandLine|contains:
            - 'http'
    selection2:
        CommandLine|contains:
            - 'copy bitsadmin.exe'
    condition: (selection1 and susp_flag_2 and http_flag) or (selection1 and susp_flag_1) or selection2
fields:
    - CommandLine
    - ParentCommandLine
falsepositives:
    - Some legitimate apps use this, but limited.
level: medium