list down many more detections(mainly including the name of either 'AntiHook' or 'SandBox'),and suddenly a blue screen appeared,and the PC shut itself down.This is the result shown by GMER the next time I opened it(without pressing 'Scan' button,in case it would not shut itself down again.In the past it also shut the PC down when it was used in my PC. ):GMER 1.0.13.12551 - http://www.gmer.netRootki