Trojan.Win32.VIDAR.0NA103DG24
Trojan:Win32/Vidar!MTB (MICROSOFT)
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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.
TECHNICAL DETAILS
4,319,112 bytes
EXE
No
06 May 2024
Modifies system registry
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.
Other System Modifications
This Trojan adds the following registry entries:
HKCU\Software\Microsoft\
{Random 8 character}
UUID =
HKCU\Software\Microsoft\
{Random 8 character}
PGDSE = {Number}
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
Servers = https://{BLOCKED}adump.org , http://{BLOCKED}7wsdbqb54aridsmu5mtdcctatumigg37ip476tsdy2jf6ascqd.onion
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
ServersVersion = {Server Version}
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
FirstInstallDate = 1715163915
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
ServiceVersion =
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
OSArchitecture = {Operating System Architecture}
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
IsAdmin = {Number}
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
AV =
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
PatchTime = {Number}
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
CPU = {CPU Information}
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
GPU = {GPU Information}
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
OSCaption = {Operating System version}
Other Details
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
{Random 8 character}
SOLUTION
9.800
19.322.02
06 May 2024
19.323.00
07 May 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.XXPE50FFF080
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
Delete this registry key
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\Microsoft\
- {Random 8 character}
- {Random 8 character}
Step 5
Delete this registry value
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\Microsoft\{Random 8 character}
- Servers =https://{BLOCKED}adump.org , http://{BLOCKED}7wsdbqb54aridsmu5mtdcctatumigg37ip476tsdy2jf6ascqd.onion
- Servers =https://{BLOCKED}adump.org , http://{BLOCKED}7wsdbqb54aridsmu5mtdcctatumigg37ip476tsdy2jf6ascqd.onion
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- UUID =
- UUID =
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- FirstInstallDate = 1715163915
- FirstInstallDate = 1715163915
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- ServiceVersion =
- ServiceVersion =
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- PGDSE = {Number}
- PGDSE = {Number}
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- ServersVersion = {Server Version}
- ServersVersion = {Server Version}
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- OSCaption = [Operating System version}
- OSCaption = [Operating System version}
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- OSArchitecture = [Operating System Architecture}
- OSArchitecture = [Operating System Architecture}
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- IsAdmin = {Number}
- IsAdmin = {Number}
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- AV =
- AV =
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- PatchTime = {Number}
- PatchTime = {Number}
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- CPU = {CPU Information}
- CPU = {CPU Information}
- In HKEY_CURRENT_USER\Software\Microsoft\{Random 8 character}
- GPU = [GPU Information}
- GPU = [GPU Information}
Step 6
Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.VIDAR.0NA103DG24. 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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