Analysis by: Neljorn Nathaniel Aguas
ALIASES:

TR/Hacktool.rguwt (ANTIVIR)

 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

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

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.

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: 572,416 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 24 Apr 2024
Payload: Connects to URLs/IPs, Collects system information, Steals information, Modifies system registry

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 System Modifications

This Potentially Unwanted Application adds the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\ASP.NET_{Version Number}\Names
{Random Alphanumeric Characters} = 1864

Propagation

This Potentially Unwanted Application does not have any propagation routine.

Backdoor Routine

This Potentially Unwanted Application does not have any backdoor routine.

Rootkit Capabilities

This Potentially Unwanted Application does not have rootkit capabilities.

Information Theft

This Potentially Unwanted Application does not have any information-stealing capability.

Other Details

This Potentially Unwanted Application does the following:

  • It gathers the following system information:
    • OS Information
    • CPU Information
    • Memory Size
    • Admin Rights
    • System Language
    • Username
    • Logon Password
    • Hostname
    • Network Speed
    • Public IP Address
    • ISP Information
    • Installed Browsers
    • Specific Visited SItes
  • It checks if the following browsers are installed in the system:
    • Google Chrome
    • Internet Explorer
    • Mozilla Firefox
    • Opera
  • It checks if the following sites have been visited by the user:
    • Ebay
    • Full Tilt
    • Neteller
    • Party Poker
    • Paypal
    • Poker Stars
    • Skrill
  • It connects to the following URL to test the network speed:
    • https://www.{BLOCKED}oject.com
  • It connects to the following URLs to get the public IP address and ISP information of the system:
    • http://{BLOCKED}zip.com/
    • http://{BLOCKED}o.io/json
    • http://www.{BLOCKED}e.com/geoip
  • It creates the following window to display the gathered information from the system:

NOTES:

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.723.00
SSAPI PATTERN Date: 02 May 2024

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\ASP.NET_{Version Number}\Names
    • {Random Alphanumeric Characters} = 1864

Step 4

Scan your computer with your Trend Micro product to delete files detected as PUA.MSIL.SysChecker.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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