DNS

This is a Mythic C2 Profile called dns. It implements a DNS Server that listens for TXT Queries from the agent. This profiles includes:

• Kill Dates
• Sleep Intervals
• Custom DNS Server

The c2 profile has mythic_c2_container==0.0.22 PyPi package installed and reports to Mythic as version "3".

Implementing DNS Profile for Custom Agents:

How to install an agent in this format within Mythic

When it's time for you to test out your install or for another user to install your c2 profile, it's pretty simple. Within Mythic you can run the mythic-cli binary to install this in one of three ways:

• sudo ./mythic-cli install github https://github.com/user/repo to install the main branch
• sudo ./mythic-cli install github https://github.com/user/repo branchname to install a specific branch of that repo
• sudo ./mythic-cli install folder /path/to/local/folder/cloned/from/github to install from an already cloned down version of an agent repo

Now, you might be wondering when should you or a user do this to properly add your agent to their Mythic instance. There's no wrong answer here, just depends on your preference. The three options are:

• Mythic is already up and going, then you can run the install script and just direct that agent's containers to start (i.e. sudo ./start_payload_types.sh agentName and if that agent has its own special C2 containers, you'll need to start them too via sudo ./start_c2_profiles.sh c2profileName).
• Mythic is already up and going, but you want to minimize your steps, you can just install the agent and run sudo ./start_mythic.sh. That script will first stop all of your containers, then start everything back up again. This will also bring in the new agent you just installed.
• Mythic isn't running, you can install the script and just run sudo ./start_mythic.sh.