Analysis by: John Rainier Navato
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  TECHNICAL DETAILS

File Size: 94,917,120 bytes
File Type: DLL
Initial Samples Received Date: 25 Nov 2024
Payload: Drops files

Installation

This Trojan drops the following files:

  • %System%\svcldr64.dat
  • %System%\console_zero.exe
  • %System%\x470764.dat
  • {Machine IP Address}\{Network Share Folder}\root\x{Random}.vbs
  • {Machine IP Address}\{Network Share Folder}\root\x{Random}.dat
  • {Machine IP Address}\{Network Share Folder}\root\rootcomp.dat
  • {Machine IP Address}\{Network Share Folder}\{Network Share Folder}.lnk

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

It adds the following processes:

  • cmd.exe /c powershell -Command "Add-MpPreference -ExclusionPath '%SystemDrive%\Windows \System32'; Add-MpPreference -ExclusionPath '%SystemDrive%\Windows\System32'"
  • cmd.exe /c sc create x470764 binPath= %System%\svchost.exe -k DcomLaunch" type= own start= auto && reg add HKLM\SYSTEM\CurrentControlSet\services\x470764\Parameters /v ServiceDll /t REG_EXPAND_SZ /d "%System%\x470764.dat" /f && sc start x470764
  • cmd.exe /c start "" "%System%\console_zero.exe"
  • cmd.exe /c schtasks /create /tn "console_zero" /sc ONLOGON /tr "%System%\console_zero.exe" /rl HIGHEST /f
  • cmd.exe /c timeout /t 16 /nobreak && del /q "%System%\svcldr64.dat"
  • cmd.exe /c arp -a
  • cmd.exe /c powershell -Command "$WshShell = New-Object -comObject WScript.Shell; $Shortcut = $WshShell.CreateShortcut('\{Machine IP Address}\{Network Share Folder}\{Network Share Folder}.lnk'); $Shortcut.WorkingDirectory = '\{Machine IP Address}\{Network Share Folder}\rootdir'; $Shortcut.TargetPath = '\{Machine IP Address}\{Network Share Folder}\rootdir\x{Random}.vbs'; $Shortcut.IconLocation = '%System%\shell32.dll, 8'; $Shortcut.Save()"
  • cmd.exe /c start "" "%System%\crypti.exe"

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Other Details

This Trojan does the following:

  • It adds the following service:
    • Name: x470764
    • Start Type: On Logon
    • Binary Path: %System%\console_zero.exe

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

It adds the following scheduled tasks:

    • Task Name: console_zero
    • Trigger: On Logon
    • Task to be run: %System%\console_zero.exe

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 19.725.96
FIRST VSAPI PATTERN DATE: 19 Nov 2024
VSAPI OPR PATTERN File: 19.727.00
VSAPI OPR PATTERN Date: 20 Nov 2024

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

    • TROJ.Win32.TRX.XXPE50FFF087

Step 2

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 3

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 4

Restart in Safe Mode

[ Learn More ]

Step 5

Deleting Scheduled Tasks while in Safe Mode

  1. Still in safe mode, the following {Task Name}-{Task to be run} listed should be used in the steps identified below:
    • Task Name: console_zero
    • Task to be run: %System%\console_zero.exe
  2. For Windows 7 and Server 2008 (R2) users, click Start>Computer.
    • For Windows 8, 8.1, 10, and Server 2012 users, right-click on the lower left corner of the screen, then click File Explorer.
  3. In the Search Computer/This PC input box, type:
    • %System%\Tasks\{Task Name}
  4. Once located, select the file then press SHIFT+DELETE to delete it.
  5. Open Registry Editor. To do this:
    • For Windows 7 and Server 2008 (R2) users, click the Start button, type regedit in the Search input field, and press Enter.
    • For Windows 8, 8.1, 10, and Server 2012 (R2) users, right-click on the lower left corner of the screen, click Run, type regedit in the text box
  6. In the left panel of the Registry Editor window, double-click the following:
    • HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Schedule>TaskCache>Tree>{Task Name}
  7. Locate the created entry and take note of the registry value's data:
    • ID={Task Data}
  8. After taking note of the data, delete the registry key:
    • HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Schedule>TaskCache>Tree>{Task Name}
  9. In the left panel of the Registry Editor window, double-click the following:
    • HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Schedule>TaskCache>Tasks
  10. Still in the left panel, locate and delete the registry key with the same name as the located Task Data in step #6:
    • ={Task Data}
  11. Close Registry Editor.

Step 6

Disable this malware service

[ Learn More ]
    • x470764

Step 7

Delete this registry key

[ 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\CurrentControlSet\services
    • x470764

Step 8

Search and delete these files

[ 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.  
  • %System%\svcldr64.dat
  • %System%\console_zero.exe
  • %System%\x470764.dat
  • {Machine IP Address}\{Network Share Folder}\root\x{Random}.vbs
  • {Machine IP Address}\{Network Share Folder}\root\x{Random}.dat
  • {Machine IP Address}\{Network Share Folder}\root\rootcomp.dat
  • {Machine IP Address}\{Network Share Folder}\{Network Share Folder}.lnk

Step 9

Restart in normal mode and scan your computer with your Trend Micro product for files detected as Trojan.Win64.MALXMR.BRP. 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 this Knowledge Base page for more information.


Did this description help? Tell us how we did.