If a person has a fear that evil will attack him or her, or someone will give false evidence (in court) or someone will blackmail them, or their life is in danger

Then they must make Wazu and sit in darkness of night facing the East, then they must recite Darood Shareef 11 times and after recite:

‘Yaa Maliko Yaa Qudduso’ (both Names together) for 100 times: then Darood Shareef 11 times and raise your hands in supplication and ask Allah (swt) for protection.  Insha Allah any enemy will be lowered (or destroyed by his or her own evil, or other ailments.