pls there is a virus called zlob dns changer in yy system it in not detected by any anti virus i have tried norton,avg,pctools but they dont detect it it stops me from updating windows pls does any one have similar issues. note u knou bu the symptoms.and wneu u google it u find the name.eg of symptoms

IE(internet explorer) will continually open windows up till 37 by itself
u cannot update windows

IE will hang when u close it