ransomware – PwnDefend

The danger of internet exposed RDP

There’s lots of things in cyber security to consider when looking at how to defend a network, and whilst the world goes mad about public wifi and juice jacking, the real threats are often far simpler. Imagine having say an Active Directory domain member, or even controller exposed to the internet with Remote Desktop Protocol? Might sound insane but this is a common route for entry for ransomware actors.

Guides

What are passkeys and how do they work?

Phishing, Brute Force, Data Breaches, Info stealers etc. are all ways in which people steal credentials. We’ve had this problem for decades, stealing something or guessing something people know is relatively trivial over the internet. This leads to a huge volume of the breaches we have seen over the last 20+ years. Whilst people seem to understand this, they don’t seem to know how to change to fix this…. (it’s not that we don’t know it’s that change is hard for lots of reasons). So there might be a solution with the adoption of passkeys! So what are passkeys?

Education

Kerberoasting History

Kerberoasting, a technique for offline cracking of Kerberos service account passwords in Active Directory environments, was publicly introduced and detailed by Tim Medin in his research paper and Black Hat USA 2014 presentation titled “Attacking Microsoft Kerberos: Kicking the Guard Dog of Hades.”

Breach

Ransomware kill chains are boring.. will we ever learn?

Are we stuck in a cyber world that never learns? are we doomed to suffer the same fate over and over again? Well, not if you take action, you can totally prevent events like this!

This is a fast post using an LLM to analyse the Capita redacted ICO report. Hopefully it will help people think about things and take the lessons and apply them in their own organisations.

Leadership

What if breach communications were honest?

Armed with my trusty sidekick, this morning I thought I would see what an LLM would make if I asked it to create public comms for common cyber incidents…. for basically every scenario… it really wanted to tell everyone no data was accessed! Which is amazing, because in almost every incident I’ve seen: Data is accessed!

In a business email compromise (BEC) scenario…. the clue is in the name, it’s already a compromise of confidentiality!

Threat Intel

Defending Against Scattered Spider

Defending against different skilled threat classes is an important thing to consider when you are planning, designing and operating a business. I’ve used GROK (AI) to create an html page which has both information on the kill chains, but also looks at countermeasures. I’m experimenting lots with VIBE coding and LLM assisted content generation so hopefully this proves useful. I do feel it needs a more human touch added as well… but let’s see! life without experimentation would be dull would it not!

Education

Avoiding an infinite incident response cycle!

Incidents are a part of life, but so is understanding the scope and bounds of an incident. One subject that comes up form time to time is how to define what is and is not ‘part of the incident’. Not everyone uses the same terms, language or definitions (which is true of many things in life). But when it comes to cyber incidents on the ground, details matter, but so do decisions!

Is the role of incident response to solve all security challenges and gaps in an enterprise? Should the recovery phase mitigate all threats? should the entire business be changed due to an incident and is that the role of the response team? When do you define what is and what is not part of the response vs what is a business change project?

Defence

What are the top Active Directory Security vulnerabilities I…

Ok so here’s the thing, I do NOT like getting pwn3d! I think you probably would rather your organisation does not too!

What I really don’t want to occur is a ransomware event! They suck, they are like a digital bomb going off.

So I’ve knocked up a quick list to get people thinking (these are NOT all the vulnerabilities I networks you should care about.. but they are some that could lead to a ransomware event!)

Hacking

The Manual Version 2.0

Working in Cyber security can expose you to all kinds of information. I’m an offensive and defensive security architect and occasional (haha that’s daily right!) pew pew slinger (pentester) and I am also a threat intelligence practioner (CTI) (we need The Many Hats Club back!). Which is why sometimes when things appear on the internet I think I decide to take a look.

Education

Some TOX Clients Leak Egress IP addresses

Some friends and I did some testing this evening with TOX clients. We wanted to take a look at PERSEC/OPSEC considerations for using TOX. I also had a sneaky suspicion that it might out of the box leak more than people would appreciate (just a hunch and you don’t know until you test right!).

So, we setup a test. In the test we had: