Detectionhightest
PUA - Fast Reverse Proxy (FRP) Execution
Detects the use of Fast Reverse Proxy. frp is a fast reverse proxy to help you expose a local server behind a NAT or firewall to the Internet.
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Launch
François Hubaut, Florian Roth (Nextron Systems)Created Fri Sep 02Updated Sat Nov 2332410e29-5f94-4568-b6a3-d91a8adad863windows
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 Logic3 selectors
detection:
selection_img:
Image|endswith:
- '\frpc.exe'
- '\frps.exe'
selection_cli:
CommandLine|contains: '\frpc.ini'
selection_hashes:
# v0.44.0
Hashes|contains:
- "MD5=7D9C233B8C9E3F0EA290D2B84593C842"
- "SHA1=06DDC9280E1F1810677935A2477012960905942F"
- "SHA256=57B0936B8D336D8E981C169466A15A5FD21A7D5A2C7DAF62D5E142EE860E387C"
condition: 1 of selection_*False Positives
Legitimate use
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
32410e29-5f94-4568-b6a3-d91a8adad863
Status
test
Level
high
Type
Detection
Created
Fri Sep 02
Modified
Sat Nov 23
Path
rules/windows/process_creation/proc_creation_win_pua_frp.yml
Raw Tags
attack.command-and-controlattack.t1090