Analysis by: Neljorn Nathaniel Aguas
ALIASES:

a variant of WinGo/HackTool.Agent.DO trojan (NOD32)

 PLATFORM:

Windows

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

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted:

  • 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: 5,936,640 bytes
File Type: EXE
Initial Samples Received Date: 04 Feb 2025
Payload: Drops files

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:

  • {Grayware Path}\rst.txt

Other Details

This Hacking Tool accepts the following parameters:

  • -ei → set ip ranges to exclude
  • -ep → set port ranges to exclude
  • -i → set domain and ips
  • -json → output in json format
  • -l → input ips file
  • -limit → number of goroutines, between 1 and 2000
  • -n → number of goroutines, between 1 and 2000 (default 800)
  • -nbtscan → get netbios stat by UDP137 in local network
  • -nocolor → using color ascii to screen
  • -o → success log (default "rst.txt")
  • -p → set port ranges to scan, default is top 100
  • -r → random scan flag
  • -t → tcp connect time out default 0.5 second (default 0.5)
  • -t1000 → scan top 1000 ports
  • -tracefile → request log
  • -h | --help → display list of commands

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 2.807.00
SSAPI PATTERN Date: 06 Feb 2025

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.  
  • {Grayware Path}\rst.txt

Step 4

Scan your computer with your Trend Micro product to delete files detected as HackTool.Win64.PortMap.AA.go. 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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