Low-rate Denial of Service (LDoS) attacks sends the sequence of periodic pulse which are low rate, when it is aggregated there will be a huge loss at the victim end. LDoS attack flows low rate of scaling function and hiding information for long duration. LDoS attacks severely degrade the availability of a victim, which can be a host, a router, or an entire network. The occurrence discovering is takes place based on the network traffic features. It will detect both the known and unknown LDoS attack in the considered network traffic features.