Brs.exe is a program from Cyberlink, the company that brought PowerDVD to your computer screens. In PowerDVD 8 BD region control information is stored in the BRF.dat file. This file is controlled by the runtime program Brs.exe.
Erroneous reports stemming from different companies’ antivirus programs have alarmed some users into thinking that this process is a virus. The reports turned out to be false positive, and updates to various antivirus programs should fix this particular issue.
However, you are still advised to run a regular scan with a reliable antivirus program whenever you encounter a suspicious program. Malware often camouflages itself by using similar nomenclature to legitimate software. A good antivirus and anti-spyware tool, will also help you maintain your system at optimum levels.