File Download Via Bitsadmin

calendar Feb 15, 2023 · attack.defense_evasion attack.persistence attack.t1197 attack.s0190 attack.t1036.003  ·
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Detects usage of bitsadmin downloading a file

Sigma rule (View on GitHub)

 1title: File Download Via Bitsadmin
 2id: d059842b-6b9d-4ed1-b5c3-5b89143c6ede
 3status: test
 4description: Detects usage of bitsadmin downloading a file
 5references:
 6    - https://blog.netspi.com/15-ways-to-download-a-file/#bitsadmin
 7    - https://isc.sans.edu/diary/22264
 8    - https://lolbas-project.github.io/lolbas/Binaries/Bitsadmin/
 9author: Michael Haag, FPT.EagleEye
10date: 2017/03/09
11modified: 2023/02/15
12tags:
13    - attack.defense_evasion
14    - attack.persistence
15    - attack.t1197
16    - attack.s0190
17    - attack.t1036.003
18logsource:
19    category: process_creation
20    product: windows
21detection:
22    selection_img:
23        - Image|endswith: '\bitsadmin.exe'
24        - OriginalFileName: 'bitsadmin.exe'
25    selection_cmd:
26        CommandLine|contains: ' /transfer '
27    selection_cli_1:
28        CommandLine|contains:
29            - ' /create '
30            - ' /addfile '
31    selection_cli_2:
32        CommandLine|contains: 'http'
33    condition: selection_img and (selection_cmd or all of selection_cli_*)
34fields:
35    - CommandLine
36    - ParentCommandLine
37falsepositives:
38    - Some legitimate apps use this, but limited.
39level: medium

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