Bitsadmin to Uncommon IP Server Address

title: Bitsadmin to Uncommon IP Server Address
id: 8ccd35a2-1c7c-468b-b568-ac6cdf80eec3
status: test
description: Detects Bitsadmin connections to IP addresses instead of FQDN names
references:
    - https://isc.sans.edu/diary/Microsoft+BITS+Used+to+Download+Payloads/21027
author: Florian Roth (Nextron Systems)
date: 2022-06-10
modified: 2022-08-24
tags:
    - attack.command-and-control
    - attack.execution
    - attack.stealth
    - attack.t1071.001
    - attack.persistence
    - attack.t1197
    - attack.s0190
logsource:
    category: proxy
detection:
    selection:
        c-useragent|startswith: 'Microsoft BITS/'
        cs-host|endswith:
            - '1'
            - '2'
            - '3'
            - '4'
            - '5'
            - '6'
            - '7'
            - '8'
            - '9'
    condition: selection
falsepositives:
    - Unknown
level: high