Adware.Linux.FRS.R002C0DJU24

 Analysis by: Leidryn Saludez

 ALIASES:

Misleading:Linux/FRP.B!MTB (MICROSOFT)

 PLATFORM:

Linux

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

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


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

It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.

  TECHNICAL DETAILS

File Size:

11,907,224 bytes

File Type:

ELF

Initial Samples Received Date:

11 Feb 2025

Arrival Details

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

Other Details

This Adware does the following:

  • It uses the following version of FRP Client:
    • FRP Client v0.3
  • It requires the following component file to proceed with its intended routine:
    • {Grayware Path}/frpc.ini

It accepts the following parameters:

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

It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.

  SOLUTION

Minimum Scan Engine:

9.800

SSAPI PATTERN File:

2.811.00

SSAPI PATTERN Date:

17 Feb 2025

Scan your computer with your Trend Micro product to delete files detected as Adware.Linux.FRS.R002C0DJU24. 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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