This is the 12029th most frequent Russian word.
злоумышленника
Malefactor; someone who commits wrongful or criminal acts.
Here, 'злоумышленник' refers to someone committing a crime or wrongful act.
Злоумышленник проник в здание ночью.
The perpetrator entered the building at night.
In this context, 'злоумышленники' (plural form) signifies individuals who act with malice.
На собрании обсуждали меры против злоумышленников.
At the meeting, they discussed measures against perpetrators.
Utilized here to denote someone suspected of wrongdoing or malicious intentions.