Malware blocking safe mode/updates/filevault

how to enter root user a/c apple has formed the article : support.apple.com/en-in/ht204012 follow the article & if www.malwarebytes .org/antimalware/mac is installed in system scan from there it will squeeze the malware .

but its is never safe to use root a/c for a normal user do your task then log out from there always .

note : sudo commands can be executed from root user a/c not in opening terminal in normal mode . also when sudo commands are executed you have to type command on key board very carefully they will never be visible in terminal window .

also if one has executed the command how to verify that command ran successfully : it will clearly state if you type incorrectly not found or an error , so type any word ex : abc you will be able to type on key board that'll word for ex abc will be seen in terminal window .it means that command is executed successfully .

note : if one has enabled firmware password + file vault : it is impossible to enter in root user a/c or run SMC , PRAM , safe mode .

to enter in root user a/c first of all disable firmware password + file vault - IF IT IS ENABLED .

it should work .

is your issue solved let us know . also there is an apple article how to execute sudo commands : support.apple.com/en-in/ht202035

sometimes DNS is poisoned how to flush it : support.apple.com/en-in/ht202516 . to find the address to a site , your computer asks another computer ( a so called domain name server or DNS ) which stores this information

if this DNS gives your computer the wrong address to some sites it is known as DNS poisoning . the code for DNS cache poisoning is often found in URLS sent via spam mails . these emails attempt to frighten users into clicking on the supplied URL which in turn infects the computer .

banner ads & images - both in emails & untrustworthy ( vogue ) websites - can also direct users to this code .

once poisoned , a users computer will take them to fake websites that are spoofed to look like the real thing exposing them to risks such as spyware , key loggers or worms .

to prevent DNS poisoning user should never click in link they don't recognise & regularly scan their computer for malware since poisoning could spoof web based results ( so www.malwarebytes.org/antimalware/mac is quite sufficient to eradicate malware .

DNS RESOLUTION = GREEN your computer appears to be looking up IP addresses correctly .

is this is a hardware issue ? open disk utility in spotlight : click on first aid ( if using el capitan ) a right tick should come after sometime in both macintosh hd & internal drive .