Wireless Sensor Networks (WSN) are subject to several kind of threats and attacks, like eavesdropping, intrusion, battery exhausting, packets reply and nodes compromising. While most of threats can be dealt with them through cryptographic materials provided by key management protocols, some other threats, like nodes replication attacks, can still go undetectable. Nodes replication attacks are one of the most redoubtable attacks, where an attacker compromising a node, uses its secret cryptographic key materials to successfully populate the network with clones of it. Few nodes replication defending protocols were proposed in the literature, but unfortunately, they require either a high computation, transmission and energy overheads, or that nodes know their exact location coordinates, which limits their usability in most WSN scenarios. In this paper, we present a replication detection protocol for static WSN, which requires no knowledge of nodes deployment locations, and introduces no significant overhead on the resource-constrained sensors