Help with regex whitelist

Hi, I need to whitelist files that match this format in a directory. Hoping someone can help me.... WebAPIServ_RTP_L1.20160102_171339_084.log WebAPIServ_RTP_L2.20160216_225645_002.log WebAPIServ_MMK_L1.20160102_171339_084.log WebAPIServ_MMK_L2.20160216_225645_022.log WebAPIServ_OMA_L1.20160102_171339_084.log WebAPIServ_OMA_L2.20160216_225645_022.log