Hi Vera,
the message indicates that SEP tamper protection suspected ASCService.exe to attack ccApp.exe. ccApp.exe is a SEP process responsible for E-mail scanning.
Tamper protection shields SEP processes, files and registry entries from attacks.
Google says that ASCService.exe is a component of Advanced SystemCare, a tool for better performance and security (!). I think that SEP and ASC just crashed.
I would disable ASC (just because it's not a good idea to run two separate security tools at the same time), or create an exception for ASCService.exe, as described here for SEP SBE:
Creating a Tamper Protection exception: http://www.symantec.com/docs/HOWTO54866
HTH!