Class 1 misdemeanor – 0 to 1 year in jail and/or fine up to $2,500.
Assault or battery by mob punishes every member of the “mob” regardless of whether that individual actively participated, or even encouraged, in the assault. So long as it can be proven that the individual was acting as part of the mob with a common intent, then the assaultive actions by other members of the mob can be imputed to every member of the mob.
§ 18.2-42. Assault or battery by mob.
Any and every person composing a mob which shall commit a simple assault or battery shall be guilty of a Class 1 misdemeanor.