I've run in to Trusteer one too many times...
2016-05
Note: Do not stop Trusteer Rapport when the browser is open. Stopping Trusteer Rapport when the browser is open can cause a crash.
From the Windows Start menu, select Programs > Trusteer Rapport > Stop Rapport. A security confirmation message appears. The message displays an image of some characters for you to type. This is done to prevent malware from disabling Trusteer Rapport.