Press to add one or more domains to beacon to. To create a DNS Beacon listener: go to Cobalt Strike -> Listeners, press Add, and select Beacon DNS as the Payload type. Use the checkin command to request that the DNS Beacon check in next time it calls home. The default is the DNS TXT record data channel.īe aware that DNS Beacon does not check in until there's a task available. And, mode dns-txt is the DNS TXT record data channel. mode dns6 is the DNS AAAA record channel. mode dns is the DNS A record data channel. Use Beacon's mode command to change the current Beacon's data channel. This payload has the flexibility to change between these data channels while its on target. Today, the DNS Beacon can download tasks over DNS TXT records, DNS AAAA records, or DNS A records. This is a change from prior versions of the product. There is no HTTP communication mode in this payload. In Cobalt Strike 4.0 and later, the DNS Beacon is a DNS-only payload. "That'll never work, we don't allow port 53 out" The DNS response will also tell the Beacon how to download tasks from your team server. The DNS response tells Beacon to go to sleep or to connect to you to download tasks. These DNS requests are lookups against domains that your Cobalt Strike team server is authoritative for. This payload uses DNS requests to beacon back to you. The DNS Beacon is a favorite Cobalt Strike feature.
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