Arrival Details
This Trojan Spy may be dropped by the following malware:
Installation
This Trojan Spy drops the following files:
- %Public%\chrome.LNK ← execute the vbs scripts
- %Public%\Chrome\5.4.8\manifest.json
- %Public%\Chrome\5.4.8\eventPage.js
- %Public%\Chrome\5.4.8\6.js
- %Public%\Chrome\5.4.8\jquery-3.1.1.min.js ← normal file
- %Public%\Chrome\5.4.8\BJava_{6 random characters}{1 random number}_.js ← detected as Trojan.JS.BANKER.THBAIAI
- %Public%\Chrome\5.4.8\GJava_{6 random characters}{1 random number}__.js ← detected as Trojan.JS.BANKER.THBAIAI
- %Public%\Chrome\5.4.8\WJava_{6 random characters}{1 random number}_.js ← detected as Trojan.JS.BANKER.THBAIAI
- %Public%\Chrome\5.4.8\iconos\Java_{6 random characters}{1 random number}_.bmp
- %Public%\Java_{6 random characters}{1 random number}_\us ← Contains Machine name and Password
- %Public%\Java_{6 random characters}{1 random number}_.vbs ← Execute the batch file
- %Public%\Java_{6 random characters}{1 random number}_.bat ← Batch file that will add the Trojan.JS.BANKER.THBAIAI as chrome extensions.
- %AppDataLocal%\w ← Chrome Login Data.
- %Application Data%\Microsoft\.Out
- %Public%\Administrador\DP.zip ← detected as HKTL_RADMIN
It drops and executes the following files:
- %Application Data%\Microsoft\l.ps1 ← Obfuscated powershell that gathers email from files in the infected machine.
- %Public%\Administrador\install.bat ← batch file HKTL_RADMIN installation config
- %Public%\Administrador\RDPWInst.exe ← detected as HKTL_RADMIN
(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, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, and 8.. %Public% is the folder that serves as a repository of files or folders common to all users, which is usually C:\Users\Public in Windows Vista, 7, and 8.)
It creates the following folders:
- %Public%\Chrome\5.4.8
- %Public%\fx6\{5 random numbers}
- %Public%\Chrome\5.4.8\iconos
- %Public%\fx6\{5 random numbers}\iconos
- %Public%\Administrador
(Note: %Public% is the folder that serves as a repository of files or folders common to all users, which is usually C:\Users\Public in Windows Vista, 7, and 8.)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- f_185761_G ← If currently login as Administrator in the machine
- A_242381_B
Other System Modifications
This Trojan Spy deletes the following files:
(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 XP, or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, and 8.)
It adds the following registry entries as part of its installation routine:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Terminal Server\WinStations\
RDP-Tcp
UserAuthentication = 0
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Terminal Server
fSingleSessionPerUser = 0
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Terminal Server
fDenyTSConnections = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows Defender
DisableAntiSpyware = 1
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\0
1407 = 0
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\1
1407 = 0
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
1407 = 0
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\3
1407 = 0
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\4
1407 = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
dontdisplaylastusername = 0
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Terminal Server\WinStations\
RDP-Tcp
SecurityLayer = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
ConsentPromptBehaviorAdmin = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
ConsentPromptBehaviorUser = 0
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Lsa
LimitBlankPasswordUse = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows NT\Terminal Services
Shadow = 0
Information Theft
This Trojan Spy attempts to steal information from the following banks and/or other financial institutions:
- Banco Bradesco
- Banco do Brasil
- Sicredi
It saves the email addresses it gathers into the following files:
- %Application Data%\Microsoft\.Outlook
(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, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, and 8.)
It gathers the following data:
- Machine Name
- Machine Password
- Outlook Email addresses
- Chrome Login Data
Stolen Information
This Trojan Spy sends the gathered information via HTTP POST to the following URL:
- https://{BLOCKED}.{BLOCKED}.00.2
- https://{BLOCKED}.{BLOCKED}s.net/logsD/index.php?CHLG
- https://{BLOCKED}.{BLOCKED}s.net/al/index.php
Other Details
This Trojan Spy does the following:
- It locks and displays the fake Windows login to a key-logged machine password:

- It uses the Windows security logon and shows the following upon entering a wrong password:.

- It deletes all the following shortcuts:
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\ImplicitAppShortcuts\Google Chrome(2).LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\ImplicitAppShortcuts\Google Chrome.LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\ImplicitAppShortcuts\Chrome.LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Google Chrome(2).LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Google Chrome.LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Chrome.LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\Google Chrome(2).LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\Google Chrome.LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\Chrome.LNK
- %Programs%\Google Chrome\Google Chrome2.LNK
- %Programs%\Google Chrome\Google Chrome.LNK
- %Programs%\Google Chrome\Chrome.LNK
- %Desktop%\Google Chrome2.LNK
- %Desktop%\Google Chrome.LNK
- %Desktop%\Chrome.LNK
- Execute the following commands to create its own malicious Google Chrome shortcuts:
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\ImplicitAppShortcuts\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%Application Data%\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%Application Data%\Roaming\Microsoft\Internet Explorer\Quick Launch\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%Desktop%\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%All Users Profile%\Menu Iniciar\Programas\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%Common Programs%\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%Common Programs%\Google Chrome\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%All Users Profile%\Menu Iniciar\Programas\Google Chrome\\Google Chrome.LNK"
- cmd.exe /C copy "C:\Users\Public\Chrome.LNK" ,"%All Users Profile%\Menu Iniciar\Programas\\Google Chrome.LNK"
- It stops and disables the following windows components by using the following commands:
- cmd.exe /C sc config wuauserv start= disabled;
- net stop wuauserv
- It deletes the following files after its routine:
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\ImplicitAppShortcuts
- %Public%\Public\Administrador\DP.zip
- %Public%\Public\Administrador
- %Public%\Public\Administrador\install.bat
- %Public%\Administrador\RDPWInst.exe
- %Application Data%\Microsoft\l.ps1
- It won't proceed to its routine if found not running on the following Windows OS through registry checking:
- Windows 7
- Windows 8
- Windows 8.1
- Windows 10
- Once a user tries to open Google Chrome, it does the following:
- Execute the following commands:
- %System%\taskill -f -im xcopy.exe
- %System%\xcopy /I /S "%Public%\chrome\5.4.8""%Public%\fx6\{5 random numbers}
- %System%\taskill -f -im chrome
- It creates a copy of %Public%\chrome and name as:
- %Public%\fx6\{5 random numbers}
- It executes the following command to add Google Chrome extensions:
- cmd.exe %Program Files%\Google\chrome\Application\chrome.exe" --load-extension="%Public%\fx6\{5 random numbers}"
- It monitors the user's banking activies by checking the browser for the following strings which are related to banking sites:
- bb.com.br
- Desativar extens
- Banco Bradesco
- Banco Santander Brasil
- aplicativo bradesco
- Banco do Brasil
- Sicredi
- aplicativo ita
- aplicativobradescover
- banco bradesco
- bancobrasil
- netbankingcai
- Internet Banking
- banco ita
- 30 horas
- banco de brasil
- bancobrasil.com.br
- bb clt
- bb.com
- bb.com.br
- bradesco.com
- sicredi
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
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 3
Restart in Safe Mode
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To restart in Safe Mode:
• For Windows 2000 users
- Restart your computer.
- Press F8 when you see the Starting Windows bar at the bottom of the screen.
- Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.
• For Windows XP users
- Restart your computer.
- Press F8 after the Power-On Self Test (POST) routine is done. If the Windows Advanced Options menu does not appear, try restarting then pressing F8 several times when the POST screen appears.
- Choose the Safe Mode option from the Windows Advanced Options menu then press Enter.
• For Windows Server 2003 users
- Restart your computer.
- Press F8 after Windows starts up. If the Windows Advanced Options menu does not appear, try restarting again and pressing F8 several times afterward.
- On the Windows Advanced Option menu, use the arrow keys to select Safe Mode then press Enter.
• For Windows Vista, Windows 7, and Windows Server 2008 users
- Restart your computer.
- Press F8 after the Power-On Self Test (POST) routine is done. If the Advanced Boot Options menu does not appear, try restarting and then pressing F8 several times after the POST screen is displayed.
- On the Advanced Boot Options menu, use the arrow keys to select the Safe Mode option, and then press Enter.
• For Windows 8, Windows 8.1, and Windows Server 2012 users
- Access the Charms bar by moving your mouse pointer to the upper right corner of the screen.
- Move your mouse pointer down and click Settings>Change your PC Settings.
- In the left panel, click General.
- In the right panel, scroll down to the bottom to find the Advanced startup section, then click the Restart now button and wait for the system to restart.
- In the Advanced Startup menu, click Troubleshoot>Advanced Options>Startup Settings>Restart and wait for the system to restart.
- In the Startup Settings menu, press 4 to enable safe mode.
Step 4
Delete this registry value
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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\SOFTWARE\Policies\Microsoft\Windows Defender
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- dontdisplaylastusername = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- ConsentPromptBehaviorAdmin = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- ConsentPromptBehaviorUser = "0"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Lsa
- LimitBlankPasswordUse = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services
To delete the registry value this malware/grayware created:
- Open Registry Editor.
» For Windows 2000, Windows XP, and Windows Server 2003 users, click Start>Run, type regedit in the text box provided, and then press Enter.
» For Windows Vista, Windows 7, and Windows Server 2008 users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, and Windows Server 2012 users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter. - In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Policies>Microsoft>Windows Defender - In the right panel, locate and delete the entry:
DisableAntiSpyware = "1" - In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Policies>System - In the right panel, locate and delete the entry:
dontdisplaylastusername = "0" - Again In the right panel, locate and delete the entry:
ConsentPromptBehaviorAdmin = "0" - Again In the right panel, locate and delete the entry:
ConsentPromptBehaviorUser = "0" - In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>Lsa - In the right panel, locate and delete the entry:
LimitBlankPasswordUse = "0" - In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Policies>Microsoft>Windows NT>Terminal Services - In the right panel, locate and delete the entry:
Shadow = "0" - Close Registry Editor.
Step 5
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again. - %User Startup%\*.vbs
- All Google Chrome.LNK
- %Application Data%\Microsoft\Internet Explorer\Quick Launch\User Pinned\ImplicitAppShortcuts
Step 6
Search and delete these folders
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Please make sure you check the
Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
- %User Startup%\Java_{6 random character}{1 random number}.LNK
- %Public%\Java_{6 random characters}{1 random number}_.vbs
- %Public%\Java_{6 random characters}{1 random number}_.bat
- %Public%\chrome.LNK
- %Public%\Java_{6 random characters}{1 random number}_
- %Public%\Chrome
- %Public%\fx6
- %AppDataLocal%\w
- %Application Data%\Microsoft\.Outlook
- %Application Data%\Microsoft\.Out
To delete malware/grayware/spyware folders:
For Windows 2000, Windows XP, and Windows Server 2003:
- Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
- In the File name* input box, type:
- %User Startup%\Java_{6 random character}{1 random number}.LNK
- %Public%\Java_{6 random characters}{1 random number}_.vbs
- %Public%\Java_{6 random characters}{1 random number}_.bat
- %Public%\chrome.LNK
- %Public%\Java_{6 random characters}{1 random number}_
- %Public%\Chrome
- %Public%\fx6
- %AppDataLocal%\w
- %Application Data%\Microsoft\.Outlook
- %Application Data%\Microsoft\.Out
- In the Look In drop-down list, select My Computer, then press Enter.
- Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.
- Repeat steps 2 to 4 for the remaining folders:
- %User Startup%\Java_{6 random character}{1 random number}.LNK
- %Public%\Java_{6 random characters}{1 random number}_.vbs
- %Public%\Java_{6 random characters}{1 random number}_.bat
- %Public%\chrome.LNK
- %Public%\Java_{6 random characters}{1 random number}_
- %Public%\Chrome
- %Public%\fx6
- %AppDataLocal%\w
- %Application Data%\Microsoft\.Outlook
- %Application Data%\Microsoft\.Out
*Note: The file name input box title varies depending on the Windows version (e.g. Search for files or folders named or All or part of the file name.).
For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:
- Open a Windows Explorer window.
- For Windows Vista, 7, and Server 2008 users, click Start>Computer.
- For Windows 8, 8.1, and Server 2012 users, right-click on the lower left corner of the screen, then click File Explorer.
- In the Search Computer/This PC input box, type:
- %User Startup%\Java_{6 random character}{1 random number}.LNK
- %Public%\Java_{6 random characters}{1 random number}_.vbs
- %Public%\Java_{6 random characters}{1 random number}_.bat
- %Public%\chrome.LNK
- %Public%\Java_{6 random characters}{1 random number}_
- %Public%\Chrome
- %Public%\fx6
- %AppDataLocal%\w
- %Application Data%\Microsoft\.Outlook
- %Application Data%\Microsoft\.Out
- Once located, select the file then press SHIFT+DELETE to permanently delete the folder.
- Repeat steps 2-3 for the remaining folders:
- %User Startup%\Java_{6 random character}{1 random number}.LNK
- %Public%\Java_{6 random characters}{1 random number}_.vbs
- %Public%\Java_{6 random characters}{1 random number}_.bat
- %Public%\chrome.LNK
- %Public%\Java_{6 random characters}{1 random number}_
- %Public%\Chrome
- %Public%\fx6
- %AppDataLocal%\w
- %Application Data%\Microsoft\.Outlook
- %Application Data%\Microsoft\.Out
*Note: Read the following Microsoft page if these steps do not work on Windows 7.
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TrojanSpy.Win32.BANRAP.AS. 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.
Step 8
Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win32.BANRAP.AS. 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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