Malware alert! URGENT – turn off Java in your browser


Do you have Java on your computer?

If the answer is “yes” or you’re “not sure”, you need to ensure you follow these steps kindly compiled by Naked Security Sophos to make sure you disable it in your browser.

Criminals are taking advantage of serious security flaws in Java to infect computers with malware.

Remove Java from Internet Explorer
Remove Java from Internet Explorer
Remove Java from Safari
Remove Java from Opera
Remove Java from Firefox

Remove Java from Internet Explorer

Windows removal instructions

Windows 7 Programs control panelWindows 7 and Vista users can go to Control Panel -> Programs. Older versions of Windows will be under Control Panel -> Add/Remove Programs.

Windows 7 uninstallFind Java in the Program list, highlight it and choose Uninstall. Windows will prompt you to confirm. Say yes.

You can confirm that Java is no longer installed by visitinghttp://java.com. Click “Do I have Java?” Click verify and confirm that it says “No working Java was detected on your system.”

Java not installed

 

Internet Explorer disable instructions

These steps were derived from advice given in CERT’s vulnerability note onCVE 2012-4681.

  1. Open Internet Explorer.
  2. Type ALT + T to activate the Tools menu and choose Manage Plugins. Choose “All items” from the Show drop-down menu. Disable “Java Plug-in –version number–.” It is safe to simply disable all of the items that begin with Java, but be sure to get this one. Close Internet Explorer.
    Disable IE Java plug-in
  3. Type WINDOWS + R and type regedit (approve UAC prompt if necessary). Browse to HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Plug-in\{version}\UseJava2IExplorer and change (Default) to 0. 64-bit Windows users will need to change HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Plug-in\{version}\UseJava2IExplorer to 0.
    Disable Java Applets in IE
  4. Open Notepad (WINDOWS + R and type notepad) and paste the following code into it:

    Windows Registry Editor Version 5.00

    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{8AD9C840-044E-11D1-B3E9-00805F499D93}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{8AD9C840-044E-11D1-B3E9-00805F499D93}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0000-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0000-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0000-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0000-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0001-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0001-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0002-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0002-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0003-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0003-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0004-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0004-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0005-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0005-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0006-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-0017-0006-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-FFFF-FFFF-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400
    [HKEY_LOCAL_MACHINE\Software\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{CAFEEFAC-FFFF-FFFF-FFFF-ABCDEFFEDCBA}]
    "Compatibility Flags"=dword:00000400

  5. Click File -> Save As… and call it DisableJava.reg and put it on your Desktop.
  6. Double-click the file on your Desktop and approve any UAC prompts.

At this point Java should be disabled.

Remove Java from Internet Explorer

How to disable Java – Chrome

 

Introduction

With vulnerabilities affecting Oracle’s Java plugin, users frequently ask how to disable or remove Java from their Windows computers. Many users require Java for specific applications, therefore we are providing both removal instructions as well as the ability to disable Java.

For users who primarily surf using Chrome it is handy to disable Java, but allow it to work in another browser for the rare application that requires Java.

Java 7 update 10 introduced a useful security control that allowed the web browser plugin to be disabled entirely. However, if you’re using an earlier version you can use the following instructions.

 

Windows removal instructions

Windows 7 Programs control panelWindows 7 and Vista users can go to Control Panel -> Programs. Older versions of Windows will be under Control Panel -> Add/Remove Programs.

Windows 7 uninstallFind Java in the Program list, highlight it and choose Uninstall. Windows will prompt you to confirm. Say yes.

You can confirm that Java is no longer installed by visitinghttp://java.com. Click “Do I have Java?” Click verify and confirm that it says “No working Java was detected on your system.”

Java not installed

Chrome disable instructions

  • Open Chrome and type chrome://plugins into the location bar.
  • Click Disable underneath the Java plugin.
    Disable Java in Chrome

 

 

 

 

 

 

 

 

 

Remove Java from Safari

Windows removal instructions

Windows 7 Programs control panelWindows 7 and Vista users can go to Control Panel -> Programs. Older versions of Windows will be under Control Panel -> Add/Remove Programs.

Windows 7 uninstallFind Java in the Program list, highlight it and choose Uninstall. Windows will prompt you to confirm. Say yes.

You can confirm that Java is no longer installed by visitinghttp://java.com. Click “Do I have Java?” Click verify and confirm that it says “No working Java was detected on your system.”

Java not installed

 

Safari disable instructions

  • Open Safari, select the Safari menu and choose Preferences.
  • Choose the Security tab and uncheck the box next to Enable Java.
    Disable Java in Safari

Remove Java from Opera

Windows removal instructions

Windows 7 Programs control panelWindows 7 and Vista users can go to Control Panel -> Programs. Older versions of Windows will be under Control Panel -> Add/Remove Programs.

Windows 7 uninstallFind Java in the Program list, highlight it and choose Uninstall. Windows will prompt you to confirm. Say yes.

You can confirm that Java is no longer installed by visitinghttp://java.com. Click “Do I have Java?” Click verify and confirm that it says “No working Java was detected on your system.”

Java not installed

 

Opera disable instructions

  • Open Opera and type opera:plugins into the location bar.
  • Click Disable next to the Java related items in the list.
    Disable Java in Opera

 

Remove Java from Firefox

Windows removal instructions

Windows 7 Programs control panelWindows 7 and Vista users can go to Control Panel -> Programs. Older versions of Windows will be under Control Panel -> Add/Remove Programs.

Windows 7 uninstallFind Java in the Program list, highlight it and choose Uninstall. Windows will prompt you to confirm. Say yes.

You can confirm that Java is no longer installed by visitinghttp://java.com. Click “Do I have Java?” Click verify and confirm that it says “No working Java was detected on your system.”

Java not installed

 

Firefox disable instructions

  • Open Firefox and click the Firefox button -> Add-ons (Tools -> Add-ons in Linux, OS X and Windows XP).
  • Choose the Plugins tab.
  • Select the Java plugin(s) and click disable.
    Disable Java in Firefox

Be sure to like and share the alert to warn your friends about this threat. As private investigators in Melbourne, we need your help to spread the word!

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