do a border bounce as close to 18th Feb as you can, then do a 30 day extension on this new entry,
KUL is good for same day turn around, but worth a few days if you current permission of stay expires before the 18th Feb. all foreign travelers entering Malaysia are required to complete the Malaysia Digital Arrival Card at https://imigresen-online.imi.gov.my/mdac/main . This is an online pre-arrival form that must be submitted within three days prior to arrival in Malaysia, there are no visa charges i believe.