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HackTool.Win32.ThreeProxy.A

June 10, 2020
 Analysis by: Clive Fuentebella
 ALIASES:

a variant of Win32/3Proxy.NAF potentially unsafe application (NOD32)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 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.

  TECHNICAL DETAILS

File Size:

114,176 bytes

Memory Resident:

Yes

Initial Samples Received Date:

22 May 2020

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.

Other Details

This Hacking Tool does the following:

  • It sets up a proxy server.

It accepts the following parameters:

  • -d - Run in background
  • -f{Format} - Specify format for logging
  • -l - Log to console
  • -l{Filename} - Log to specified file
  • -b{Buffer size} - Set network buffer size
  • -S{Stack size} - Set default client thread stack size
  • -t - Run silently
  • -i{IP Address} - Accept connections
  • -e{IP Address} - Connect to server
  • -r{Host/IP:Port} - Establish connect back proxy on specified IP
  • -4 - Use IPv4
  • -6 - Use IPv6
  • -46 - Use both IPv4 or IPv6, prioritize IPv4
  • -64 - Use both IPv4 or IPv6, prioritize IPv6

  SOLUTION

Minimum Scan Engine:

9.850

SSAPI PATTERN File:

2.299.00

SSAPI PATTERN Date:

11 Jun 2020

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.Win32.ThreeProxy.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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