Cisco 1841 IOS IPS signature download

[dfsdfsdfsdf]

I got a Cisco 1841 with IOS version 1841-advsecurityk9-mz.124-25f. Trying to learn more for ccnp security. I also got the AIM IPS hardware module for this unit

Where do I find out what the default signatures do?

Where can I download new signatures as this router is end of life and I don't have an partner account?

[Marvin Rhoads]

The "classic" Cisco IPS products are no longer part of any Cisco certification program. In the IPS category, you should study Firepower technology.

https://learningnetwork.cisco.com/s/ccnp-security