in a malicious manner, or for malicious reasons

Intending to do harm; characterized by spite and malice.

plural of maliciousness

The condition of being malicious; malevolence or malice

(law) The willful, wanton, or reckless destruction of the personal property of another occasioned by actual ill will or resentment toward the owner or possessor of such property.

plural of malicious prosecution

A common law intentional tort which arises from a party (1) intentionally and maliciously instituting or pursuing (or causing to be instituted or pursued) a legal action (civil or criminal) that is (2) brought without probable cause and (3) dismissed in favor of the other party.