rfefkrnk.dll

File rfefkrnk.dll is malware or can be infected by malware:
Malware Browser Helper Object BHO, Zlob.ProtectionBar Trojan, Zlob.Fam.SecurityToolbar7.1 Trojan, Adware Toolbar Toolbar, securityinfohere.com Hijacker, thesafetyfiles.com Hijacker
You must run antivirus software as soon as posible to check you computer.Also Be Aware of this dangerous files:

Removing rrjoyepd.dll
albtychn.dll Cleaner
hjzhvzya.dll File
rstvcpau.dll Information
File name appcompat.txt