Suspicious File Download From IP Via Wget.EXE - Paths

title: Suspicious File Download From IP Via Wget.EXE - Paths
id: 40aa399c-7b02-4715-8e5f-73572b493f33
status: test
description: Detects potentially suspicious file downloads directly from IP addresses and stored in suspicious locations using Wget.exe
references:
    - https://www.gnu.org/software/wget/manual/wget.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2024-02-23
tags:
    - attack.execution
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\wget.exe'
        - OriginalFileName: 'wget.exe'
    selection_ip:
        CommandLine|re: '://[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'
    selection_http:
        CommandLine|contains: 'http'
    selection_flag:
        - CommandLine|re: '\s-O\s'
        - CommandLine|contains: '--output-document'
    selection_paths:
        - CommandLine|contains:
              - ':\PerfLogs\'
              - ':\Temp\'
              - ':\Users\Public\'
              - ':\Windows\Help\'
              - ':\Windows\Temp\'
              - '\Temporary Internet'
        - CommandLine|contains|all:
              - ':\Users\'
              - '\Favorites\'
        - CommandLine|contains|all:
              - ':\Users\'
              - '\Favourites\'
        - CommandLine|contains|all:
              - ':\Users\'
              - '\Contacts\'
        - CommandLine|contains|all:
              - ':\Users\'
              - '\Pictures\'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high