{abef791f-947e-4cdf-83c3-e72a240afb67} startup information for Windows XP, Windows Vista and other versions of Microsoft Windows
Part of the Zlob trojan that displays fake security alerts for the rogue anti-spyware program called SpywareLocked.
This page helps identify spyware, viruses, and other programs that you don't understand what they are, or want to know if ygjun.dll is a safe file or if you can safely remove or delete ygjun.dll. Use at your own risk and if unsure either do a virus/anti adware scan and seek advice from a professional adware remover