BKDR_TENPEQ.AD

To identify and delete the malware/grayware file:

• On Windows XP and Server 2003 systems:

1. Scan your computer with your Trend Micro product and then take note of the names of the malware/grayware files detected.
2. Click Start>Run. In the Open input box, type secpol.msc and press Enter.
3. In the left panel, double-click Local Policies>Security Options.
4. In the right panel, double-click Recovery Console: Allow floppy copy and access to all drives and folders.
5. Select Enabled and click OK.
6. Insert the Windows Installation CD into the CD drive, then restart your computer.
7. When prompted, press any key to boot from the CD.
8. On the main menu, type r to go to the Recovery Console.
9. Type the number that corresponds to the drive and directory that contains Windows (usually C:\WINDOWS) and press Enter.
10. Type the Administrator password and press Enter.
11. In the input box, type the following then press Enter:
    SET AllowAllPaths = TRUE
    del "{malware/grayware path and file name}"
12. Type exit and press Enter to restart the system normally.

• On Windows Vista, 7, and Server 2008 systems:

1. Scan your computer with your Trend Micro product and then take note of the names of the malware/grayware files detected.
2. Insert your Windows Installation DVD in the DVD drive, then Press the restart button.
3. When prompted, press any key to boot from the CD.
4. Depending on your Windows Installation DVD, you might be required to select the installation language. Then on the Install Windows window, choose your language, locale, and keyboard layout or input method. Click Next, then click Repair your computer.
5. Select Use recovery tools that can help fix problems starting Windows. Select your installation of Windows. Click Next.
6. If the Startup Repair window appears, click Cancel, Yes, then Finish.
7. In the System Recovery Options window, click Command Prompt.
8. In the Command Prompt window, type the following then press Enter:
   BootRec.exe /fixmbr
   del "{malware/grayware path and file name}"
9. Type exit and press Enter to close the Command Prompt window.
10. Click Restart to restart the system normally.

• On Windows 8, 8.1, and Server 2012 systems:

1. Scan your computer with your Trend Micro product and then take note of the names of the malware/grayware files detected.
2. Insert your Windows Installation DVD in the DVD drive, then restart your computer.
3. When prompted, press any key to boot from the DVD.
4. Depending on your Windows Installation DVD, you might be required to select the keyboard layout. Then on the Windows Setup window, choose your language, locale, and input method. Click Next, then click Repair your computer.
5. Click Troubleshoot>Advanced Options>Command Prompt.
6. In the Command Prompt window, type the following then press Enter:
   BootRec.exe /fixmbr
   del "{malware/grayware path and file name}"
7. Type exit and press Enter to close the Command Prompt window.
8. Click Continue to restart the system normally.

To enable Registry Editor, Task Manager, and Folder options:

1. Open Notepad. To do this:
   
   • For Windows 2000, XP, and Server 2003 users:
     Click Start>Run, type Notepad in the text box provided, then press Enter.
   • For Windows Vista, 7, and Server 2008 users:
     Click start. Type Notepad , then press Enter.
   • For Windows 8, 8.1, and 2012 users:
     Right-click on the lower left corner of the screen. Click Run. Type Notepad in the input field, then press Enter.
2. Copy and paste the following script:
   On Error Resume Next Set shl = WScript.CreateObject("WScript.Shell") shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools" shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr" shl.RegDelete "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions" shl.RegDelete "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFolderOptions"
3. Save this file as C:\RESTORE.VBS.
4. Run C:\RESTORE.VBS by double-clicking on the file.
5. Click Yes at the prompt of the message box to execute the .VBS file.

To delete the registry key this malware/grayware created:

1. 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.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>policies
3. Still in the left panel, locate and delete the key:
   Explorer
4. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows Script
5. Still in the left panel, locate and delete the key:
   Settings
6. Close Registry Editor.

To delete the registry value this malware/grayware created:

1. 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.
2. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Run
3. In the right panel, locate and delete the entry:
   82354699 = "{malware path and file name}"
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>Session Manager>Memory Management
5. In the right panel, locate and delete the entry:
   IoPageLockLimit = "8"
6. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Classes>CLSID>{00021400-0000-0000-C000-000000000046}
7. In the right panel, locate and delete the entry:
   MenuShowDelay = "1"
8. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer
9. In the right panel, locate and delete the entry:
   DesktopProcess = "1"
10. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>FileSystem
11. In the right panel, locate and delete the entry:
    NtfsDisableLastAccessUpdate = "1"
12. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Internet Settings
13. In the right panel, locate and delete the entry:
    MaxConnectionsPer1_0Server = "a"
14. Again In the right panel, locate and delete the entry:
    MaxConnectionsPerServer = "a"
15. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>Tcpip>Parameters
16. In the right panel, locate and delete the entry:
    EnablePMTUDiscovery = "1"
17. Again In the right panel, locate and delete the entry:
    EnablePMTUBHDetect = "1"
18. Again In the right panel, locate and delete the entry:
    Tcp1323Opts = "3"
19. Again In the right panel, locate and delete the entry:
    SackOpts = "1"
20. Again In the right panel, locate and delete the entry:
    TcpMaxDupAcks = "2"
21. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>lanmanworkstation>parameters
22. In the right panel, locate and delete the entry:
    MaxCmds = "1e"
23. Again In the right panel, locate and delete the entry:
    MaxThreads = "1e"
24. Again In the right panel, locate and delete the entry:
    MaxCollectionCount = "2"
25. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>policies>Explorer
26. In the right panel, locate and delete the entry:
    NoDriveTypeAutoRun = "ff"
27. Again In the right panel, locate and delete the entry:
    ConfigFileAllocSize = "1f4"
28. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Explorer
29. In the right panel, locate and delete the entry:
    AlwaysUnloadDLL = "1"
30. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>SharedAccess>Parameters>FirewallPolicy>StandardProfile>AuthorizedApplications>List
31. In the right panel, locate and delete the entry:
    %System%\attrib.exe = "%System%\attrib.exe:*:Enabled:Sevsl"
32. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows Script>Settings
33. In the right panel, locate and delete the entry:
    JITDebug = "0"
34. Close Registry Editor.

To restore registry values this malware/grayware modified:

1. Open Registry Editor. To do this:
   
   • On Windows 2000, XP, and Server 2003:
     Click Start>Run, type REGEDIT in the text box provided, and then press Enter.
   • On Windows Vista, 7, and Server 2008:
     Click the Start button, type REGEDIT in the Search input field then press Enter.
   • On Windows 8, 8.1, and Server 2012:
     Right-click on the lower left corner of the screen and click Run, type REGEDIT in the Run input field, and then press Enter.
2. In the left panel, double-click the following:
   HKEY_CURRENT_USER>Control Panel>Desktop
3. In the right panel, locate the registry value:
   HungAppTimeout = "1000"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   HungAppTimeout = "5000"
5. Again In the right panel, locate the registry value:
   WaitToKillAppTimeout = "1000"
6. Right-click on the value name and choose Modify. Change the value data of this entry to:
   WaitToKillAppTimeout = "20000"
7. Again In the right panel, locate the registry value:
   AutoEndTasks = "1"
8. Right-click on the value name and choose Modify. Change the value data of this entry to:
   AutoEndTasks = "0"
9. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>PriorityControl
10. In the right panel, locate the registry value:
    Win32PrioritySeparation = "26"
11. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Win32PrioritySeparation = "2"
12. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Control Panel>Desktop>WindowMetrics
13. In the right panel, locate the registry value:
    MinAnimate = "0"
14. Right-click on the value name and choose Modify. Change the value data of this entry to:
    MinAnimate = "1"
15. Again In the right panel, locate the registry value:
    MenuShowDelay = "0"
16. Right-click on the value name and choose Modify. Change the value data of this entry to:
    MenuShowDelay = "400"
17. Again In the right panel, locate the registry value:
    UserPreferencesMask = "{random values}"
18. Right-click on the value name and choose Modify. Change the value data of this entry to:
    UserPreferencesMask = "{random values}"
19. Again In the right panel, locate the registry value:
    DragFullWindows = "0"
20. Right-click on the value name and choose Modify. Change the value data of this entry to:
    DragFullWindows = "1"
21. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>AeDebug
22. In the right panel, locate the registry value:
    Auto = "0"
23. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Auto = "0"
24. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>PCHealth>ErrorReporting
25. In the right panel, locate the registry value:
    ShowUI = "0"
26. Right-click on the value name and choose Modify. Change the value data of this entry to:
    ShowUI = "1"
27. Again In the right panel, locate the registry value:
    DoReport = "0"
28. Right-click on the value name and choose Modify. Change the value data of this entry to:
    DoReport = "1"
29. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>NetBT>Parameters
30. In the right panel, locate the registry value:
    NameSrvQueryTimeout = "bb8"
31. Right-click on the value name and choose Modify. Change the value data of this entry to:
    NameSrvQueryTimeout = "5dc"
32. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>Explorer
33. In the right panel, locate the registry value:
    NoDriveTypeAutoRun = "ff"
34. Right-click on the value name and choose Modify. Change the value data of this entry to:
    NoDriveTypeAutoRun = "91"
35. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>SystemRestore
36. In the right panel, locate the registry value:
    DisableSR = "1"
37. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Control>Session Manager>Memory Management>PrefetchParameters
38. In the right panel, locate the registry value:
    AppLaunchMaxNumPages = "fa"
39. Right-click on the value name and choose Modify. Change the value data of this entry to:
    AppLaunchMaxNumPages = "fa0"
40. Again In the right panel, locate the registry value:
    AppLaunchMaxNumSections = "aa"
41. Right-click on the value name and choose Modify. Change the value data of this entry to:
    AppLaunchMaxNumSections = "aa"
42. Again In the right panel, locate the registry value:
    AppLaunchTimerPeriod = "{random values}"
43. Right-click on the value name and choose Modify. Change the value data of this entry to:
    AppLaunchTimerPeriod = "{random values}"
44. Again In the right panel, locate the registry value:
    BootMaxNumPages = "1f4"
45. Right-click on the value name and choose Modify. Change the value data of this entry to:
    BootMaxNumPages = "1f400"
46. Again In the right panel, locate the registry value:
    BootMaxNumSections = "ff"
47. Right-click on the value name and choose Modify. Change the value data of this entry to:
    BootMaxNumSections = "ff0"
48. Again In the right panel, locate the registry value:
    BootTimerPeriod = "{random values}"
49. Right-click on the value name and choose Modify. Change the value data of this entry to:
    BootTimerPeriod = "{random values}"
50. Again In the right panel, locate the registry value:
    EnablePrefetcher = "3"
51. Right-click on the value name and choose Modify. Change the value data of this entry to:
    EnablePrefetcher = "3"
52. Again In the right panel, locate the registry value:
    MaxNumActiveTraces = "8"
53. Right-click on the value name and choose Modify. Change the value data of this entry to:
    MaxNumActiveTraces = "8"
54. Again In the right panel, locate the registry value:
    MaxNumSavedTraces = "8"
55. Right-click on the value name and choose Modify. Change the value data of this entry to:
    MaxNumSavedTraces = "8"
56. Again In the right panel, locate the registry value:
    RootDirPath = "Prefetch"
57. Right-click on the value name and choose Modify. Change the value data of this entry to:
    RootDirPath = "Prefetch"
58. Again In the right panel, locate the registry value:
    VideoInitTime = "15b5"
59. Right-click on the value name and choose Modify. Change the value data of this entry to:
    VideoInitTime = "3e"
60. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Internet Explorer>Main
61. In the right panel, locate the registry value:
    Start Page = "www.naver.com"
62. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Start Page = "http://www.microsoft.com/isapi/redir.dll?prd
63. In the left panel, double-click the following:
    HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Winlogon
64. In the right panel, locate the registry value:
    AutoRestartShell = "1"
65. Right-click on the value name and choose Modify. Change the value data of this entry to:
    AutoRestartShell = "1"
66. Close Registry Editor.

To manually delete a malware/grayware file from an affected system:

• For Windows 2000, Windows XP, and Windows Server 2003:

1. Right-click Start then click Search....
2. In the File name* input box, type the following:
   
   • %User Temp%\58b8052567ade6540adf05ec8d813970.zip
3. In the Look In drop-down list, select My Computer then press Enter.
4. Once located, select the file then press SHIFT+DELETE to delete it.
   *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:

1. 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.
2. In the Search Computer/This PC input box, type:
   
   • %User Temp%\58b8052567ade6540adf05ec8d813970.zip
3. Once located, select the file then press SHIFT+DELETE to delete it.
   *Note: Read the following Microsoft page if these steps do not work on Windows 7.

To delete the malware/grayware folder:

1. Right-click Start then click Search... or Find..., depending on the version of Windows you are running.
2. In the Named input box, type:
   
   • %User Temp%\AA_
3. In the Look In drop-down list, select My Computer, then press Enter.
4. Once located, select the folder then press SHIFT+DELETE to permanently delete the folder.