PUA.Win32.InstallCore.MANHOBWZ

To delete the registry value this malware created:

1. Open Registry Editor. To do this:
   » For Windows 7 and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, Windows 8.1, 10, and Windows Server 2012 (R2) 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 of the Registry Editor window, double-click the following:
   In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRUEnable = 1
3. In the right panel, locate and delete the entry:
   =
4. In the left panel of the Registry Editor window, double-click the following:
   In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRUSize = 10
5. In the right panel, locate and delete the entry:
   =
6. In the left panel of the Registry Editor window, double-click the following:
   In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRUInitHits = 100
7. In the right panel, locate and delete the entry:
   =
8. In the left panel of the Registry Editor window, double-click the following:
   In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRUFactor = 20
9. In the right panel, locate and delete the entry:
   =
10. Close Registry Editor.

To delete the registry key this malware/grayware/spyware created:

1. Restart your computer 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 #2.
2. Open Registry Editor. To do this:
   » For Windows 7 and Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
   » For Windows 8, 8.1, 10, and 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.
• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
3. Close Registry Editor.

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

•For Windows 7, Windows Server 2008 (R2), Windows 8, Windows 8.1, Windows 10, and Windows Server 2012 (R2):

1. Open a Windows Explorer window.
   • For Windows 7 and Server 2008 (R2) users, click Start>Computer.
   • For Windows 8, 8.1, 10, and Server 2012 (R2) 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%\is{random string}\css\ie6_main.css
   • %User Temp%\is{random string}\css\main.css
   • %User Temp%\is{random string}\css\sdk-ui\browse.css
   • %User Temp%\is{random string}\css\sdk-ui\button.css
   • %User Temp%\is{random string}\css\sdk-ui\checkbox.css
   • %User Temp%\is{random string}\css\sdk-ui\images\button-bg.png
   • %User Temp%\is{random string}\css\sdk-ui\images\progress-bg-corner.png
   • %User Temp%\is{random string}\css\sdk-ui\images\progress-bg.png
   • %User Temp%\is{random string}\css\sdk-ui\images\progress-bg2.png
   • %User Temp%\is{random string}\css\sdk-ui\progress-bar.css
   • %User Temp%\is{random string}\csshover3.htc
   • %User Temp%\is{random string}\dat\upd.DAT
   • %User Temp%\is{random string}\form.bmp.Mask
   • %User Temp%\is{random string}\images\BG.png
   • %User Temp%\is{random string}\images\Close.png
   • %User Temp%\is{random string}\images\Close_Hover.png
   • %User Temp%\is{random string}\images\Color_Button.png
   • %User Temp%\is{random string}\images\Color_Button_Hover.png
   • %User Temp%\is{random string}\images\Grey_Button.png
   • %User Temp%\is{random string}\images\Grey_Button_Hover.png
   • %User Temp%\is{random string}\images\Loader.gif
   • %User Temp%\is{random string}\images\Logo.png
   • %User Temp%\is{random string}\images\Progress.png
   • %User Temp%\is{random string}\images\ProgressBar.png
   • %User Temp%\is{random string}\images\text-bg.png
   • %User Temp%\is{random string}\locale\{Language Code}.locale
   • %User Temp%\is{random string}\skin.7z
   • %User Temp%\ICReinstall_{malware filename}.exe
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 and Windows Server 2008 (R2).