Analysis by: Maria Emreen Viray
 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

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

  TECHNICAL DETAILS

File Size: 3,945,984 bytes
File Type: EXE
File Compression: Themida
Memory Resident: No
Initial Samples Received Date: 26 Apr 2022

Arrival Details

This Potentially Unwanted Application 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 Potentially Unwanted Application does the following:

  • It is a reverse socks5 tunneler with encryption and basic proxy authentication support

It accepts the following parameters:

  • -cert {string} → certificate file
  • -connect {string} → connect address:port
  • -debug → display debug info
  • -listen {string} → listen port for receiver address:port
  • -pass {string} → Connect password
  • -proxy {string} → proxy address:port
  • -proxyauth {string} → proxy auth Domain/user:Password
  • -proxytimeout {string} → proxy response timeout (ms)
  • -recn {int} → reconnection limit (default 3)
  • -rect {int} → reconnection delay (default 30)
  • -socks {string} → socks address:port (default "{BLOCKED}.{BLOCKED}.0.1:1080")
  • -useragent {string} → User-Agent
  • -version → version information

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.509.00
SSAPI PATTERN Date: 28 Apr 2022

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 PUA.Win64.NetStarter.A. 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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