If this is the case, it might help to seek counseling to deal with the pain, guilt, anger and fear.
If this is not the case, try to identify your dream attacker. Is it someone in your life who has a powerful or domineering influence over you, or someone with whom you are having a dispute? If the attacker is either of these, your unconscious may be depicting your sense of having no choice but to submit or go along with things. You may have a strong fear of being humiliated if you lose the struggle. Alternatively, you may have detected that this person is a threat or danger to you. [1]
If you are the victim of an assault it means that, even though you want to experience a profound change (your existence does not satisfy you), you are not able to carry it out.
If this attack produces a positive feeling, you should be alert to proposals or your own intuitions. On the contrary, if the feelings are unpleasant, you must avoid rushing into taking initiative in real life. It may also be the fact that you are the one who assaults someone else.
If the action ends successfully, it indicates the time is right to make changes. [2]
If you dream that you assault someone, your ill-mood and temper may cause harm to another.
To dream of seeing somebody else being assaulted generally means that you feel you have been wronged in real life. [3]
To devastate someone by looking at him with despise in a dream means that the assailant will suffer from the jealous eye of his victim in wakefulness. [8]