runtimebroker.exe is a program which is most likely NOT a virus. So, if runtimebroker.exe is on your system, it is most likely ok, and will NOT be a cause for concern. Even if your PC is virus-free, it is still recommended to purchase a good antivirus with a good track record, in order to yourself yourself against viruses and malware.
Normally, this application is stored in C:\Windows\System32\RuntimeBroker.exe.
The MD5 fingerprint for this executable is b12dc83dde6373ebcc16a1b460b435be.
This program is NOT a Windows service. This is good.
runtimebroker.exe appears to use the functions of Windows SFC (System File Checker) or Windows File Protection.
This is a x64 executable. It runs using the full capacity of modern computer processors.
This executable does NOT have visible windows. This is most likely a bad thing.
runtimebroker.exe has a digital signature. Today most serious programs are digitally signed.
The digital signature extracted from runtimebroker.exe is valid. This is excellent.
Digitally signed by: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have a removal routine stored in registry.