Wifi, Iphones and Persec/Opsec

I’m back with my AI enabled self! This evening I’m jumping into some interesting things about WIFI probes! Now back in the day you could deploy a pineapple etc. can you would hear phones calling out all the time for SSIDs to connect to, you could fingerprint phones (and infer people) from them!

But that’s not really the case anymore! If we camp with a pineapple or other setup, it’s not really the same anymore! (unless someone has a hidden SSID… they are terrible for PERSEC/OPSEC!!)

Want to know why? Well it’s down to how phones are programmed to poll (probe) for SSIDs… I’ve tested this in a car park miles away with a range of kit! (not dodgy at all right!)

To help me answer this I turned to my currently favourite LLM: GROK

Hunting for common Active Directory Domain Services Exploitations

Ok this morning I woke up really really early! I then went on a bit of a KQL thread on twitter, and then IRL work destroyed my plans to play in the lab. However I’m publishing this in its current state [use at own risk etc.] because I think it might help people! So let’s get to it:

These queries can help you identify 3 common active directory attack techniques from logs on a domain controller (this does not rely on ADCS logs etc.)

Cyber Threat Intelligence Resources

There are so many lists of “tools” of “free resources” for “cyber” etc. Well I don’t want to make a list of stuff for social media, this isn’t the TOP x tools, this is simply some resources that I use on a regular basis that should give people a fairly good idea of where to start looking. Cyber sleuthing is a mixture of:

HUMINT
OSINT
CSINT
RUMINT
SIGINT
SOCMINT

failed to open stream: Permission denied in /var/www/wordpress

I was doing some WordPress foo on the site (I know right, shockingly I don’t want to hand craft a website and I’d rather be helping customers or really anything else really) and I came into this error when I was installing the wpforms plugins:

 file_put_contents(/var/www/wordpress/wp-content/uploads/wpforms/cache/addons.json): failed to open stream: Permission denied in /var/www/wordpress/wp-content/plugins/wpforms-lite/src/Helpers/CacheBase.php on line 215

Ransomware + Mega = Mega Cyber Pain

Did you ever read about ransomware actors? They often use mega upload to exfiltrate data! So I figured, why would we not detect this with MDE?

I mean sure we should probably block this with a custom indicator using Web Content Filtering and sure it would probably get blocked by Protective DNS but let’s say for whatever reason you don’t have those in place, let’s look at a really simple query to find mega connections in MDE:

Volume Shadow Copy

If you are having fun today with Defender ASR deleting lnk files then you will see the MS Script has a v1.1 which looks to VSS to see if it can restore shortcuts from shadow copies, so whilst here I thought I’d note down a few different ways to list the Volume Shadow Copies.

You will need admin rights for these to work:

Password Spraying Office 365

Clearly this is for penetration testing, not for evil! So if you have to pentest Office 365 you might want to be attacking the authentication services. This will be aligned to the tenant you are testing, as always make sure you have authorisation.

Deploy to your favourite LINUX instance or WSL etc.

Practical Security Assurance

Penetration testing, adversary simulation, red teaming, purple teaming, rainbow teaming, call if what you like, the security outcome we are working towards is:

Improved Security Posture
Assurance of security investments and controls
Enablement of information sharing
Collaboration and Understanding
Identification of strengths and weaknesses
Optimization and Improvement Opportunities

This is to support the organisations mission, vision, goals, and objectives. Cyber security is to support and enable the organisation’s capability to execute digital services in a safe manner.

Cyber Essentials for Ubuntu Servers

I thought about doing a step by step bash script or CLI walkthrough but decided to go with the high levels steps. If we wanted to ensure our Linux servers are configured in alignment with Cyber Essentials what are the main areas we need to consider? For this I’m using Ubuntu Server as a base, I’ve not gone through every line in the standard but these should be in line with the 5 areas and fit within the Cyber Essentials theme. As always there are many ways to skin a cat! (don’t skin cats they are frens!). Anyway hope this is useful.

Phishing (Cred harvester) Response

Incident Response Playbook (High Level)

Having a plan for how you will respond to common incidents is key. It’s a good idea to have procedural level “playbooks” (we used to just call these procedures, maybe I’m old!) but let’s get taktic00l and call them:

Playbooks/Runbooks/Aide-mémoire etc.

That aside (words are fun right!) they key part here is to identify the people, roles and responsibilities and the systems/actions/decisions you will need to take. To start with let’s look at a common incident of Phishing with credential harvesting, this may lead onto business email compromise (BEC) and attempted or successful fraud or downstream supply chain attacks.