BITS Transfer Job With Unusual Or Suspicious Remote TLD (via bits-client)

title: BITS Transfer Job With Unusual Or Suspicious Remote TLD (via bits-client)
id: 5fa80b17-1752-5c65-a838-a7bd01f68075
status: stable
description: This rule detects an anomalous download using the BITS client from a FQDN that is unusual. Threat actors may misuse BITS jobs to persistently execute or clean up after hostile payloads.
references:
    - https://attack.mitre.org/techniques/T1197/
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1197/T1197.md
    - https://twitter.com/malmoeb/status/1535142803075960832
author: Huntrule Team
date: 2026-05-14
tags:
    - attack.persistence
    - attack.execution
    - attack.stealth
    - attack.t1197
logsource:
    product: windows
    service: bits-client
detection:
    selection:
        EventID: 16403
    filter_main_generic:
        RemoteName|contains:
            - '.azureedge.net/'
            - '.com/'
            - '.sfx.ms/'
            - 'download.mozilla.org/'
            - 'cdn.onenote.net/'
            - 'cdn.office.net/'
            - 'tscdn.m365.static.microsoft/'
    condition: selection and not 1 of filter_main_*
falsepositives:
    - Unknown
level: medium