From the screenshot it shows the malicious item is in the cache, you can flush out the java cache pretty easily

Go into the Control Panel and double-click the Java Icon.

• On the General tab, under Temporary Internet Files, click the Settings button.
• Next, click on the Delete Files button
• There are two options in the window to clear the cache - Leave BOTH Checked
  
  • Applications and Applets
    Trace and Log Files
• Click OK on Delete Temporary Files Window
  Note: This deletes ALL the Downloaded Applications and Applets from the CACHE.
• Click OK to leave the Temporary Files Window
• Click OK to leave the Java Control Panel.