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Published Nov 09, 2007 | Updated Sep 15, 2017

TrojanSpy:Win32/Banker.GB

Detected by Microsoft Defender Antivirus

Aliases: Win-Trojan/Banker.Gen (AhnLab) W32/Banker.CYW (Command) Win32/Spy.Banker.MZ (ESET) Trojan-Spy.Win32.Banker.mz (Kaspersky) Generic PWS.j (McAfee) W32/Banker.CLV (Norman) Infostealer.Bancos (Symantec) TrojanSpy.Banker.HCX (VirusBuster)

Summary

TrojanSpy:Win32/Banker.GB is a Trojan bank password stealer, targeting online banking customers of the Banrisul Bank of Brazil. Banker.GB may send financial credentials to a remote attacker by sending an e-mail message containing the captured sensitive information.
To manually recover from infection by TrojanSpy:Win32/Banker.GB, follow these steps:
  1. Disconnect from the Internet.
  2. Restart your computer in safe mode.
  3. Delete the Trojan registry entry.
  4. Restart your computer in safe mode.
  5. Delete the Trojan files from your computer.
  6. Restart your computer.
  7. Take steps to prevent re-infection.

Disconnect from the Internet

To help ensure that your computer is not actively infecting other computers, disconnect it from the Internet before proceeding. Print this Web page or save a copy on your computer; then unplug your network cable and disable your wireless connection. You can reconnect to the Internet after completing these steps.

Restart your computer in safe mode

To start your the computer in safe mode
  1. Remove all floppy disks and CDs from your computer, and then restart your computer.
  2. When prompted, press F8. If Windows starts without displaying the Please select the operating system to start menu, restart your computer. Press F8 after the firmware POST process completes, but before Windows displays graphical output.
  3. From the Windows Advanced Options menu, select a safe mode option.

Delete the Trojan registry entries

TrojanSpy:Win32/Banker.GB creates entries in the Windows registry that attempts to run the Trojan every time your computer restarts. This entry should be deleted.
To delete the Trojan registry entry
  1. On the Start menu, click Run.
  2. Type regedit and click OK.
  3. In the left pane, navigate to the key:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
  4. In the right pane, right-click the following value, if it exists:
    VgaDriver = %Windir%\inf\rsrvga32.exe
  5. Click Delete and click Yes to delete the value.
  6. In the right pane, right-click the following value, if it exists:
    WinLogon = %WinDir%\inf\winlogon.exe
  7. Click Delete and click Yes to delete the value.
  8. Close the Registry Editor.

Restart your computer in safe mode

To start your the computer in safe mode
  1. Remove all floppy disks and CDs from your computer, and then restart your computer.
  2. When prompted, press F8. If Windows starts without displaying the Please select the operating system to start menu, restart your computer. Press F8 after the firmware POST process completes, but before Windows displays graphical output.
  3. From the Windows Advanced Options menu, select a safe mode option.

Delete the Trojan file from your computer

To delete the Trojan file from your computer
  1. Click Start, and click Run.
  2. In the Open field, type %WinDir%\inf
  3. Click OK.
  4. Click Name to sort files by name.
  5. Delete these files from the folder:
    %WinDir%\inf\flyconect.exe
    %WinDir%\inf\Inst.exe
    %WinDir%\inf\msdn.exe
    %WinDir%\inf\vic32.dll
    %WinDir%\inf\winlogon.exe
    %WinDir%\inf\install.txt
  6. On the Desktop, right-click the Recycle Bin and click Empty Recycle Bin.
  7. Click Yes.

Restart your computer

To restart your computer
  1. On the Start menu, click Shut Down.
  2. Select Restart from the drop-down list and click OK.

Take steps to prevent re-infection

Do not reconnect your computer to the Internet until the computer is protected from re-infection. See the "Preventing Infection" section for more information.
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