atomic-red-team VS sliver

You can write your own or look at testing tools like Cytest to ensure that your business goals are met and to ensure your sensors are configured correctly, and ART for attack chains.

I had heard that Falcon Overwatch has a detection for Exfiltration for C2, but I was not able to trigger it using my personal Kali Machine to host a C2 server with https://github.com/cedowens/SimpleC2_Server and then used Atomic Red Team: https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1041/T1041.md

Yup what the above said, you can use atomic red https://github.com/redcanaryco/atomic-red-team

Atomic red team have tests that should trigger it, it also has a clear description of what it does and how to clean up afterwards. https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1059.001/T1059.001.md suggest that you try obfuscation or cradle.

Dated but still full of goodness. https://github.com/redcanaryco/atomic-red-team/tree/e88a1ea463964839e267dba74ec1cf7bf634ccbf/ARTifacts/Initial_Access

Are you familiar with Atomic Red Team? Many quick & practical sample tests you can often run without much effort or prep work. All tests map to Techniques - a quick way to search through them all at the Tactic level is by searching within the CSV index of all their current tests here (I counted ~50 Collection-related tests just now): https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/Indexes/Indexes-CSV/index.csv

Check out Atomic Red Team’s Redcanary.

IDK if you are too young to remember the fallout from Snowden, but the Kremlin threw out entire rooms computers and for a time used actual typewriters. Because those computers had, more or less, twingate connectors on them. That's a bit of a rich example, but you're essentially installing what sliver calls an implant, what meterpreter calls a payload, and what Cobalt Strike calls a beacon. It's cool if you want to, but there's no need when you can just open a port with the same technology a Fortune 50 does.

What they said. Also, if you want a free alternative to cobalt: https://github.com/BishopFox/sliver

Sliver is neat, https://github.com/BishopFox/sliver

Armitage is precursor to CS but they diverged a long time ago. I ran up the armitage that comes with Kali these days, it has issues and bugs that would prevent it being useful. Sliver is probably the most usable FOSS C2. https://github.com/BishopFox/sliver

I’m a huge fan of Sliver, super powerful and well written/maintained with a lot of care and attention paid to tradecraft. I’m a big fan of the features like the built-in support for DNS canaries to detect blue team analysis. Only downside is that the documentation may be a little lacking.

- https://github.com/BishopFox/sliver/wiki/DNS-C2

For the additional more advanced steps I used sliver as a c2. Sliver is an excellent tool for the job and unlike some other tools, it's FOSS! You can easily replace sliver with your tool of choice, however.