sigmahighHunting

Suspicious Download From Direct IP Via Bitsadmin

Detects usage of bitsadmin downloading a file using an URL that contains an IP

MITRE ATT&CK

defense-evasionpersistence

Detection Query

selection_img:
  - Image|endswith: \bitsadmin.exe
  - OriginalFileName: bitsadmin.exe
selection_flags:
  CommandLine|contains:
    - " /transfer "
    - " /create "
    - " /addfile "
selection_extension:
  CommandLine|contains:
    - ://1
    - ://2
    - ://3
    - ://4
    - ://5
    - ://6
    - ://7
    - ://8
    - ://9
filter_seven_zip:
  CommandLine|contains: ://7-
condition: all of selection_* and not 1 of filter_*

Author

Florian Roth (Nextron Systems)

Created

2022-06-28

Data Sources

windowsProcess Creation Events

Platforms

windows

References

Tags

attack.defense-evasionattack.persistenceattack.t1197attack.s0190attack.t1036.003

Raw Content

title: Suspicious Download From Direct IP Via Bitsadmin
id: 99c840f2-2012-46fd-9141-c761987550ef
related:
    - id: 90f138c1-f578-4ac3-8c49-eecfd847c8b7
      type: similar
status: test
description: Detects usage of bitsadmin downloading a file using an URL that contains an IP
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/
    - https://blog.talosintelligence.com/breaking-the-silence-recent-truebot-activity/
author: Florian Roth (Nextron Systems)
date: 2022-06-28
modified: 2023-02-15
tags:
    - attack.defense-evasion
    - attack.persistence
    - attack.t1197
    - attack.s0190
    - attack.t1036.003
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\bitsadmin.exe'
        - OriginalFileName: 'bitsadmin.exe'
    selection_flags:
        CommandLine|contains:
            - ' /transfer '
            - ' /create '
            - ' /addfile '
    selection_extension:
        CommandLine|contains:
            - '://1'
            - '://2'
            - '://3'
            - '://4'
            - '://5'
            - '://6'
            - '://7'
            - '://8'
            - '://9'
    filter_seven_zip:
        CommandLine|contains: '://7-' # For https://7-zip.org/
    condition: all of selection_* and not 1 of filter_*
falsepositives:
    - Unknown
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_bitsadmin_download_direct_ip/info.yml