Analysis by: John Rainier Navato
 Modified by: Raighen Sanchez

ALIASES:

HTool-FRProxy.d (NAI)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It does not have any propagation routine.

It does not have any backdoor routine.

It does not have any information-stealing capability.

  TECHNICAL DETAILS

File Size: 11,681,280 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 10 Oct 2025

Arrival Details

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Propagation

This Hacking Tool does not have any propagation routine.

Backdoor Routine

This Hacking Tool does not have any backdoor routine.

Rootkit Capabilities

This Hacking Tool does not have rootkit capabilities.

Information Theft

This Hacking Tool does not have any information-stealing capability.

Other Details

This Hacking Tool does the following:

  • It is used for setting up a reverse proxy.
  • It requires the following files for the configuration of the proxy server:
    • frpc.ini

It accepts the following parameters:

  • Usage:
    • frpc [flags]
    • frpc [command]
  • Commands:
    • help → Help about any command
    • http → Run frpc with a single http proxy
    • https → Run frps with a single https proxy
    • reload → Hot-reload frpc configuration
    • status → Overview of all proxies status
    • stcp → Run frps with a single stcp proxy
    • sudp → Run frps with a single sudp proxy
    • tcp → Run frps with a single tcp proxy
    • tcpmux → Run frps with a single tcpmux proxy
    • udp → Run frps with a single udp proxy
    • verify → Verify that the configuration are valid
    • xtcp → Run frps with a single xtcp proxy
  • Flags:
    • -c, --config {string} → config file of frpc (default "./frpc.ini")
    • --config_dir {string} → config directory, run one frpc service for each file in config directory
    • -h, --help → help for frpc
    • -v, --version → version of frpc

NOTES:

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.647.00
SSAPI PATTERN Date: 10 Aug 2023

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as HackTool.Win64.FRP.P. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:


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