Finding Promiscuous Sniffers and ARP Poisoners on your Network with Ettercap

Most of you are familiar with using Ettercap for attacking systems, but what about using it to find attackers? This tutorial will cover using Ettercap to find people sniffing on your network. The plug-ins we will be using are search_promisc, arp_cop and scan_poisoner.  Have fun detecting network sniffers.
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