Worm.Win32.VICTORYGATE.A
Win32/VictoryGate.B worm (NOD32)
Windows
Threat Type: Worm
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It connects to a website to send and receive information.
TECHNICAL DETAILS
Arrival Details
This Worm 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 Worm adds the following folders:
- %Application Data%\RSnqlljBB
- %ProgramData%\BjUGOZiQd (stores the icons of files found in removable drives)
- {Removable drive letter}:\RpjLsDtaW
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.)
It drops the following files:
- {Removable drive letter}:\{Original filename}.exe (runs copy of itself and file found in removable drive)
- %Application Data%\RSnqlljBB\gBHZHyjmZ.exe (Aut2Exe)
- %Application Data%\RSnqlljBB\lcFCkvXHk.au3 (AutoIt version of {Removable drive letter}:\{Original filename}.exe)
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It drops the following copies of itself into the affected system:
- %Application Data%\winlogoo2.exe
- {Removable drive letter}:\RpjLsDtaW\lzAXrNifF.exe
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Autostart Technique
This Worm drops the following file(s) in the Windows User Startup folder to enable its automatic execution at every system startup:
- %User Startup%\winlogoo.url.lnk (runs copy of itself)
(Note: %User Startup% is the current user's Startup folder, which is usually C:\Windows\Profiles\{user name}\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu\Programs\Startup on Windows NT, C:\Documents and Settings\{User name}\Start Menu\Programs\Startup on Windows 2003(32-bit), XP and 2000(32-bit), or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit), 10(64-bit).)
Other System Modifications
This Worm adds the following registry entries:
HKEY_CURRENT_USER\Software
BGPbVrtpy = False
Backdoor Routine
This Worm connects to the following websites to send and receive information:
- winmicrosoft.{BLOCKED}s.net
As of this writing, the said sites are inaccessible.
Information Theft
Upon execution of the affected application, it gathers the following information:
- Username
- Computer name
- Preferred language
Other Details
This Worm does the following:
- The original files in the removable drive overwritten by the malware are placed in {Removable drive letter}:\RpjLsDtaW.
SOLUTION
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.XXPE50FSX002
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
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
- BGPbVrtpy = False
- BGPbVrtpy = False
Step 6
Search and delete these files
- %Application Data%\winlogoo2.exe
- {Removable drive letter}:\RpjLsDtaW\lzAXrNifF.exe
- {Removable drive letter}:\{Original filename}.exe
- %Application Data%\RSnqlljBB\lcFCkvXHk.au3
- %Application Data%\RSnqlljBB\gBHZHyjmZ.exe
- %User Startup%\winlogoo.url.lnk
Step 7
Search and delete these folders
- %Application Data%\RSnqlljBB
- %ProgramData%\BjUGOZiQd
- {Removable drive letter}:\RpjLsDtaW
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as Worm.Win32.VICTORYGATE.A. 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.
NOTES:
Note: Before Step 7, copy original files from the removable drive in {Removable drive letter}:\RpjLsDtaW and paste it outside the said folder.
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