TROJ_BANKER.OUW


 PLATFORM:

Windows 98, ME, NT, 2000, XP, Server 2003

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

  • Threat Type:

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes


  TECHNICAL DETAILS

File Size:

516096 bytes

Memory Resident:

Yes

Initial Samples Received Date:

17 Dec 2009


Other System Modifications


This Trojan adds the following registry keys:



Other Details


This Trojan adds the following lines or registry entries as part of its routine:


  • HKEY_LOCAL_MACHINE\SOFTWARE\dbaf265b-451a-4296-a31c-a1d33c51d4ab
    pcdbaf265b-451a-4296-a31c-a1d33c51d4abins=1


      SOLUTION


    Step 1


    Terminate the malware/grayware/spyware process:

    [ Learn More ]
    Notes=
  • For Windows 98 and ME users, 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.
  • 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.
  • If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

  • Step 2


    Delete this registry key

    [ 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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.

    • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Explorer\Browser Helper Objects\
      • F7FC4D2F-6F8A-49BF-B911-4241A0D20592


    Step 3


    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.

    • HKEY_CLASSES_ROOT\CLSID\{F7FC4D2F-6F8A-49BF-B911-4241A0D20592}
      • (Default)=
    • HKEY_CLASSES_ROOT\CLSID\{F7FC4D2F-6F8A-49BF-B911-4241A0D20592}\InprocServer32
      • (Default)={malware path and filename}
      • ThreadingModel=Apartment
    • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Policies\SYSTEM
      • EnableLUA=0
    • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Explorer\Browser Helper Objects\{F7FC4D2F-6F8A-49BF-B911-4241A0D20592}
      • NoExplorer=1
      • (Default)=Process debug Visual Studio 2008


    Step 4


    Restore this modified 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.

    • HKEY_CLASSES_ROOT\CLSID\{F7FC4D2F-6F8A-49BF-B911-4241A0D20592}
      • From: (Default)=Process debug Visual Studio 2008
        + To: (Default)=


    Step 5


    Scan your computer with your Trend Micro product to delete files detected as
    TROJ_BANKER.OUW


    *Note: 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.


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