TROJ_INJECTOR.KKW

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>ESENT>Process
3. Still in the left panel, locate and delete the key:
   Windows Update
4. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>ESENT>Process>Windows Update
5. Still in the left panel, locate and delete the key:
   DEBUG
6. 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>Software>Microsoft>GDIPlus
3. In the right panel, locate the registry value:
   FontCachePath = "%Application Data%"
4. Right-click on the value name and choose Modify. Change the value data of this entry to:
   FontCachePath = "%User Profile%\Local Settings\Application Data"
5. In the left panel, double-click the following:
   HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>Services>Eventlog>Application>ESENT
6. In the right panel, locate the registry value:
   EventMessageFile = "%System%\ESENT.dll"
7. Right-click on the value name and choose Modify. Change the value data of this entry to:
   EventMessageFile = "{random values}"
8. Again In the right panel, locate the registry value:
   CategoryMessageFile = "%System%\ESENT.dll"
9. Right-click on the value name and choose Modify. Change the value data of this entry to:
   CategoryMessageFile = "{random values}"
10. Again In the right panel, locate the registry value:
    CategoryCount = "1"
11. Right-click on the value name and choose Modify. Change the value data of this entry to:
    CategoryCount = "10"
12. Again In the right panel, locate the registry value:
    TypesSupported = "7"
13. Right-click on the value name and choose Modify. Change the value data of this entry to:
    TypesSupported = "7"
14. In the left panel, double-click the following:
    HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Explorer>Advanced
15. In the right panel, locate the registry value:
    Hidden = "1"
16. Right-click on the value name and choose Modify. Change the value data of this entry to:
    Hidden = "2"
17. 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 Profile%\Microsoft\defragsvc.exe
   • %User Temp%\SysInfo.txt
   • %User Profile%\Application Data\pid.txt
   • %User Profile%\Application Data\pidloc.txt
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 Profile%\Microsoft\defragsvc.exe
   • %User Temp%\SysInfo.txt
   • %User Profile%\Application Data\pid.txt
   • %User Profile%\Application Data\pidloc.txt
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%\screens
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.