Penal Code Section 469
Forgery for the purpose of harming the reputation of any person
469. Whoever commits forgery, intending that the document forged shall harm the reputation of any party, or knowing that it is likely to be used for that purpose, shall be punished with imprisonment for a term which may extend to three years, and shall also be liable to fine.
Please refer to the Attorney General's Chamber of Malaysia's website for the latest law.