Pirate,
in the previous post we’ve focused on the authentication technique of Kerberos, we went through the 3 way handshake and had a look at the encryption types. With that in mind we will have a look at golden ticket attacks.
Pirate,
many enterprise IT departments these days are afraid of golden ticket or pass the ticket attacks -which is good because privilege escalation and privileged account exploitation are at the center of cyber attacks as we see them. Attackers crash through the network perimeter, hijack credentials and use them to move laterally throughout the network, taking additional credentials and escalating privileges along the way to accomplish their goals. In this blog series we will have a look at kerberos golden ticket and silver ticket attacks. I’ll try my best to explain how it works and how Azure ATP / Advanced Threat Analytics can help to detect.
Pirate,
in June 2018, Mark Simos who works as Lead Architect, Enterprise Cybersecurity Group at Microsoft published the updated “Cybersecurity Reference Architecture”. I find this a very valuable collection of architectural information as it often gives a good impression of the big picture approach. As there is a webcast coming up, where Mark is going to explain the design and how you as a architect or systems engineer can use this reference architecture, I decided to wrap that information up in a blogpost.
Pirate,
we recently had a customer that was affected by a sticky keys attack. That made my team and myself dig deeper in how you can prevent these kind of attacks. The best way to protect is easier than you might expect…
Pirate,
the third attack simulation method is a password spray attack. In a password-spray attack, a hacker tests a single password against multiple user accounts at an organization. The method often involves weak passwords, such as Winter2018 or Password123!, and can be an effective hacking technique against organizations that are using single sign-on (SSO) and federated authentication protocols, but that haven’t deployed multi factor authentication.
Pirate,
A Brute Force Attack is the simplest method to gain access to a site or server. It is an automated, trial-and-error method of generating multiple password guesses from a dictionary file against a user’s password. Automated software is used to generate a large number of consecutive guesses as to the value of the desired data. An attack of this nature can be time- and resource-consuming. Hence the name “brute force attack;” success is usually based on computing power and the number of combinations tried rather than an ingenious algorithm.
Pirate,
in the first part we had a look into attack simulator and the included scenarios. We discussed which scenario does what in detail and what you need to set up as a preparation. In this blog post we will check out the spear phishing attack that is meant to harvest credentials. Spear phishing is a very common e-mail spoofing attack scenario that targets a specific individual or organization with the goal to get access to sensitive information. Furthermore I have seen this attack method with the intend to install malware on a targeted user’s computer.
Pirate,
Email spam is once again the most popular choice for sending out malware. Spam has been one of the main infection vectors for decades. During the past few years, it’s gained more popularity against other vectors, as systems are getting more secure against software exploits and vulnerabilities. A recent report of F-Secure reports that spam email click rates have gone up from the 13.4% recorded in the second half of 2017 to 14.2% recorded in the first half of the year. To protect against these attack vectors is nearly impossible as a majority of attacks leads to web pages never seen before and due to the the sheer infinite range of these attack vectors. The only thing that really improves our security level is permanent education of our users.
On 02-21-2018 Microsoft has announced the Public Preview of Attack Simulator for Office 365 Threat Intelligence. In preparation of some customer workshops I had a first look into the product that I want to share with you.
Pirate,
within the last year, we have focused on Windows Defender ATP and ran through several PoCs. I’ve prepared several scenarios for you, where I will guide you trough WDATP from the tenant creation to high end scenarios. In this first post, we will go through the tenant creation process itself.
from time to time I consult customers in the configuration of Windows 10 AppLocker. I really love AppLocker because it’s super simple, reliable and enterprise ready in terms of administrative overhead. Furthermore it’s the recommended tool for the configuration of unwanted / not needed apps within Windows 10. But sometimes AppLocker kind of “breaks” my Windows 10 start menu and stops Apps from strarting up. Although the AppLocker enforcement is disabled.
