PUA - NPS Tunneling Tool Execution

Title: PUA - NPS Tunneling Tool Execution
Status: test
Description:Detects the use of NPS, a port forwarding and intranet penetration proxy server
References:
  -https://github.com/ehang-io/nps
Author: Florian Roth (Nextron Systems)
Date: 2022-10-08
modified:2024-11-23
Tags:

• -'attack.command-and-control'
• -'attack.t1090'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection_img:
    Image|endswith: '\npc.exe'
  selection_cli_1:
    CommandLine|contains|all:
      -' -server='
      -' -vkey='
      -' -password='

  selection_cli_2:
    CommandLine|contains: ' -config=npc'
  selection_hashes:
    Hashes|contains:
      -'MD5=AE8ACF66BFE3A44148964048B826D005'
      -'SHA1=CEA49E9B9B67F3A13AD0BE1C2655293EA3C18181'
      -'SHA256=5A456283392FFCEEEACA3D3426C306EB470304637520D72FED1CC1FEBBBD6856'

  condition:1 of selection_*
Falsepositives:
  -Legitimate use
Level: high