Artemisa: An open-source honeypot back-end to support security in VoIP domains

Voice over IP (VoIP) and the Session Initiation Protocol (SIP) are establishing themselves as strong players in the field of multimedia communications over IP, leveraged by low cost services and easy management. Nevertheless, the security aspects are not yet fully mastered. In this paper we present an open-source implementation of a VoIP SIP-specific honeypot named Artemisa. The honeypot is designed to connect to a VoIP enterprise domain as a back-end user-agent in order to detect malicious activity at an early stage. Moreover, the honeypot can play a role in the real-time adjustment of the security policies of the enterprise domain where it is deployed. We aim, by this contribution, to encourage the deployment of such honeypots at large scale and the collection of attack traces. We test the capacity of the honeypot to handle a series of known SIP attacks and present results from diverse scenarios.