We present HADEGA, a novel adaptive mitigation solution to handle the impact of network attacks. By extracting information from network detection alerts, and build upon the Multiprotocol Label Switching (MPLS) standard, the solution assigns labels and quality of service treatments to suspicious flows. As a result, those labeled flows are controlled and properly handled inside the core network of service providers. We conducted simulations in order to evaluate the efficiency of our approach. Results are presented.