Detectionhightest
PUA - NPS Tunneling Tool Execution
Detects the use of NPS, a port forwarding and intranet penetration proxy server
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Launch
Florian Roth (Nextron Systems)Created Sat Oct 08Updated Sat Nov 2368d37776-61db-42f5-bf54-27e87072d17ewindows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic4 selectors
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:
# v0.26.10
Hashes|contains:
- "MD5=AE8ACF66BFE3A44148964048B826D005"
- "SHA1=CEA49E9B9B67F3A13AD0BE1C2655293EA3C18181"
- "SHA256=5A456283392FFCEEEACA3D3426C306EB470304637520D72FED1CC1FEBBBD6856"
condition: 1 of selection_*False Positives
Legitimate use
References
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
68d37776-61db-42f5-bf54-27e87072d17e
Status
test
Level
high
Type
Detection
Created
Sat Oct 08
Modified
Sat Nov 23
Path
rules/windows/process_creation/proc_creation_win_pua_nps.yml
Raw Tags
attack.command-and-controlattack.t1090