Stories from the SOC - Credential Dumping

During the Investigation of a Suspicious Security Critical Event alarm, we discovered credentials had been dumped from the NTDS.dit, which is a database that stores Active Directory data, including password hashes for all users in the domain. By extracting these hashes, it’s possible for an attacker to use tools to gain access to user’s passwords, which allows them to act as any user on the domain, including the administrator.

MITRE ATT&CK July 2020 Update: Sub-Techniques!

The highly anticipated structural update to the MITRE ATT&CK framework was released July 8th, 2020. After a quiet first half of the year, it appears the ATT&CK team has been putting in lots of work into some significant redesign of the framework’s structure. This update introduces a new layer of abstraction: sub-techniques.

Cosmic Lynx: The Highly-Professional Cybercrime Gang Scamming Businesses Out of Millions of Dollars

Things just got serious. Business Email Compromise is no longer solely the province of chancers and opportunistic Nigerian actors such as the Yahoo Boys. Organised criminal gangs with a high level of professionalism have seen the opportunity and seized it. Security researchers at Agari have published a report detailing their investigations into a Russian cybercrime gang they say have stolen millions of dollars from companies in 46 countries since mid-2019.

macOS vs. Windows - What kernels tell you about security events: Part 2

This post continues this two-part blog series on further understanding the differences between macOS and Windows on the system level for effective endpoint security analysis. In Part 1, we covered process events. Here in Part 2, we’ll discuss file and network events. As with Part 1, my hope is to help cybersecurity professionals expand and enrich their experiences on a less familiar platform, ultimately helping them to be better prepared to face differences from past experiences.

Introducing Teleport 4.3 - Modern Replacement for OpenSSH

We’re excited to announce the release of Teleport 4.3 - new UI, API driven, expanded audit capabilities, and still open source. This version is so significant, we nearly called it 5.0! In this post, we’ll cover the major new features and you’ll see why we called it ‘Teleport’.

Types of DDoS attacks explained

Distributed denial of service (DDoS) is a broad class of cyberattack that disrupts online services and resources by overwhelming them with traffic. This renders the targeted online service unusable for the duration of the DDoS attack. The hallmark of DDoS attacks is the distributed nature of the malicious traffic, which typically originates from a botnet—a criminally-controlled network of compromised machines spread around the globe.

Zero Trust security model explained: what is Zero Trust?

This blog was written by a third party author Zero Trust is a cybersecurity model with a tenet that any endpoint connecting to a network should not be trusted by default. With Zero Trust, everything and everyone— including users, devices, endpoints —must be properly verified before access to the network is allowed.

Common security misconfigurations and remediations

A misconfiguration is exactly what it sounds like; something that is wrongly configured. From a security perspective this can be either fairly harmless, or in the worst case devastating. We have written about misconfigurations before, both here and here. Misconfigurations may derive from many different reasons, such as: Hackers often exploit misconfigurations, since this can have a huge security impact.

I Have Antivirus; I'm Protected, Right? Mis-steps Customers Make with their Security and Vulnerability Tools

I’ve worked in the IT field for over 30 years. 20 of those years have been spent in the network security field, employed by some of the largest names in the industry. But to my family, I’m still just the guy who “works with computers”. Many of my family are not computer savvy, which is a nice way of saying I had to teach them where the power button is. However, “Power Button Locator” is just one of my jobs. Windows won’t boot up?