SigmaHQ/rules/windows/process_creation/win_susp_finger_usage.yml
2021-07-01 12:18:30 +05:45

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YAML

title: Finger.exe Suspicious Invocation
id: af491bca-e752-4b44-9c86-df5680533dbc
description: Detects suspicious aged finger.exe tool execution often used in malware attacks nowadays
author: Florian Roth, omkar72, oscd.community
date: 2021/02/24
references:
- https://twitter.com/bigmacjpg/status/1349727699863011328?s=12
- https://app.any.run/tasks/40115012-a919-4208-bfed-41e82cb3dadf/
- http://hyp3rlinx.altervista.org/advisories/Windows_TCPIP_Finger_Command_C2_Channel_and_Bypassing_Security_Software.txt
tags:
- attack.command_and_control
- attack.t1105
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\finger.exe'
condition: selection
falsepositives:
- Admin activity (unclear what they do nowadays with finger.exe)
level: high