Snort

So you think you hung up, but the connection was still active, which of course then allowed an attacker to listen in on the microphone in your signal device.

So that's the vulnerability here it has been patched and yes signal is certainly one of those things but you probably want to apply updates more or less automatically and well that in my experience at least works pretty well with signal And then we got updates for Snort 3 from Cisco.

Now, this is interesting for a couple of reasons.

First of all, it's a critical vulnerability with a base CVSS score of 9.0. Secondly, well, Snort has to look at a lot of hostile traffic, so any vulnerability in Snort certainly could become a problem.

There's Tripwire.

There's, you know, there's Snort.

There's a there's a bunch of really good.

How do I defend myself against how do I detect hacking attempts and that kind of thing? Those really good tools.

Okay.

PFSense is set up now time to install Snort.

Snort will be our IDS IPS or intrusion detection and prevention system.

Essentially it'll monitor whatever network interface we set and look for any nefarious traffic based on rules that we set.

And I went through and enabled every rule I could trying to add as much overhead.

They did.

Security vendors and threat hunters started writing static network signatures, rules in intrusion detection systems like Suricata and Snort to flag these specific layer four network anomalies.

They built a better wall to block the magic packet.

So how did the attackers change their disguise to get around the new wall?