arrow_back
search
close

Trojan.Win32.DOWNLOADER.DPY

December 05, 2023
 ALIASES:

Win32:Malware-gen (AVAST); Gen:Variant.Lazy.428016 (BITDEFENDER)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

As of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

3,056,128 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

01 Dec 2023

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • http://{BLOCKED}.{BLOCKED}.{BLOCKED}.25:8000/j-19

As of this writing, the said sites are inaccessible.

Other Details

This Trojan does the following:

  • It first scans for the following antivirus related processes:
    • 360tray.exe
    • 360sd.exe

    It shows the following message box when any of the said processes is found running:



    Which translates to:



  • It will only proceed to the download routine once the said processes are no longer running.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.860.04

FIRST VSAPI PATTERN DATE:

05 Dec 2023

VSAPI OPR PATTERN File:

18.861.00

VSAPI OPR PATTERN Date:

06 Dec 2023

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.XXPE50FFF075E0002

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

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.DOWNLOADER.DPY. 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:


Did this description help? Tell us how we did.