TrojanSpy.Win32.URSNIF.TIABOEEX

May 06, 2020
 Analysis by: Joshua Paul Ignacio
 ALIASES:

Trojan:Win32/Danabot.KM!MTB (MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This Trojan Spy may be downloaded from remote sites by other malware.

  TECHNICAL DETAILS

File Size:

244,736 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

28 Apr 2020

Payload:

Connects to URLs/IPs, Steals information

Arrival Details

This Trojan Spy may be downloaded from remote site(s) by the following malware:

Installation

This Trojan Spy adds the following mutexes to ensure that only one of its copies runs at any one time:

  • Local\{GUID}

Other System Modifications

This Trojan Spy adds the following registry entries:

HKEY_CURRENT_USER\Software\AppDataLow\
Software\Microsoft\{GUID}
Client = {Hex Values}

HKEY_CURRENT_USER\Software\AppDataLow\
Software\Microsoft\{GUID}
Client32 = {Hex Values}

Information Theft

This Trojan Spy gathers the following data:

  • User Name
  • Host Name
  • OS Name
  • OS Version
  • GUID

Stolen Information

This Trojan Spy sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED}zza.at/images/{Encrypted Gathered Information}.avi
  • http://mcc.{BLOCKED}t.com/images/{Encrypted Gathered Information}.avi

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.848.07

FIRST VSAPI PATTERN DATE:

28 Apr 2020

VSAPI OPR PATTERN File:

15.849.00

VSAPI OPR PATTERN Date:

29 Apr 2020

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.XXPE50FFF035

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

Identify and terminate files detected as TrojanSpy.Win32.URSNIF.TIABOEEX

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 5

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_CURRENT_USER\Software\AppDataLow\Software\Microsoft\{GUID}
    • Client = {Hex Values}
  • In HKEY_CURRENT_USER\Software\AppDataLow\Software\Microsoft\{GUID}
    • Client32 = {Hex Values}

Step 6

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win32.URSNIF.TIABOEEX. 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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