<<<<<<< HEAD DCH FACH WeChat weixin qq hostnames DNS WeChat's MicroMessenger wx workflow workflows W TCP ======= LCS DNS BitTorrent Actually, we use the protocol specification to build the training set. However, it is just for the evaluation and it does not imply that our approach requires protocol specifications. WeChat >>>>>>> f672d022cac5c1d09e0c6c9436ec96c92328cf10