Analysis by: Bren Matthew Ebriega
 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

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

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: 10,287,144 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 10 May 2021
Payload: Drops files, Displays windows

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.

Installation

This Hacking Tool drops the following files:

  • {Hacktool Directory}\netscan.lic

Other Details

This Hacking Tool does the following:

  • It displays the following window:
  • It displays scanned live IP Addresses (IPv4 and IPv6) based on the range set to be scanned.
  • It displays the MAC Addresses and Hostnames of the Scanned IP Addresses.
  • It displays writable and hidden shared folders of the Scanned IP Addresses.
  • It can scan for listening TCP ports, select UDP ports, and SNMP services.
  • It can retrieve and display any system information from the scanned IP Addresses via the following methods:
    • WMI Queries
    • Registry Queries
    • File System Queries
    • Service Manager Queries
    • Group and User Queries
    • Performance Queries
  • It supports Wake-On-LAN, remote shutdown/reboot/suspend and sending network messages to scanned IP Addresses.
  • It supports remote command execution via the following methods:
    • SSH
    • PowerShell
    • VBScript
    • JScript
  • It is capable of allowing the user to connect to a scanned IP address via the following protocols:
    • HTTP
    • HTTPS
    • FTP
    • Telnet
    • RDP
  • It can import and export data in the following formats:
    • .json
    • .html
    • .xml
    • .txt
    • .csv
  • This tool has been abused by other malware to perform network scanning on compromised networks.

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.407.00
SSAPI PATTERN Date: 13 May 2021

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

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • {Hacktool Directory}\netscan.lic

Step 4

Scan your computer with your Trend Micro product to delete files detected as HackTool.Win32.NetScan.AE. 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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