Published | JUMPSEC LABS

A Closer Look at Microsoft’s Latest Email Security Requirements – Tooling Release Included!

by Francesco Iulio | Apr 11, 2025 | Mail Security

Email remains one of the most consistently targeted attack surfaces in cyber security. Despite evolving defences, phishing, spoofing, and impersonation attacks continue to be effective---largely due to gaps in how organisations authenticate the email they send. The frontline of defence? A triad of DNS-based protocols: SPF, DKIM, and DMARC. SPF (Sender Policy Framework) allows domain owners to define which mail servers are authorised to send on their behalf. DKIM (DomainKeys Identified Mail) ensures email integrity by attaching cryptographic signatures to outgoing messages. DMARC (Domain-based Message Authentication, Reporting and Conformance) enables domain owners to instruct how unauthenticated mail should be handled, and provides reporting for monitoring abuse. These mechanisms have long been recommended, but enforcement across the email ecosystem has been inconsistent in our...

Tutorial – How to setup a forward proxy with HAProxy that routes TOR through a VPN…in docker

At JUMPSEC we foster a research culture and want to provide people with tools and safe environments necessary to conduct research. As part of my ongoing work in setting up a new...

Ranking MFA Methods – From Least to Most Secure

My Perspective on MFA Security In an era of relentless cyber threats, multi-factor authentication (MFA) has become a cornerstone of modern security practices, adding an extra...

Active Cyber Defence – Taking back control

by Umair Qamar | Oct 15, 2024 | Detection, Incident Response

Every good cybersecurity article needs a Sun Tzu quote, here is one lesser known quote from Sun Tzu to start us off. What Happened? Recently, JUMPSEC’s Detection and Response Team (DART) caught a Red Team inside one of our MxDR clients' networks using a honeypot server. The honeypot server was set up using Thinkst Applied Research’s project called OpenCanary. This open-source project...

NTLM Relaying – Making the Old New Again

by David Kennedy | Sep 17, 2024 | Red Teaming

I am old enough to remember that it was not always possible to get domain admin within the first hour of a test via Active Directory Certificate Services (ADCS) misconfigurations or over permissioned SCCM NAA accounts. At present we are spoilt for choice in regards to privilege escalation vectors within the on-premise AD environment's, but I wanted to take a look at some of the other...

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 2)

by Emilia Chau, Marin Gheorge, Muhammad Jawad | Sep 11, 2024 | Forensics, Incident Response

In this part 2, we'll walk you through the step-by-step process of setting up and conducting a Digital Forensics and Incident Response (DFIR) investigation using a virtual machine (VM). We’ll cover everything from configuring the VM to ensure it’s completely isolated to tackling the challenges of USB passthrough with a write blocker. You'll also learn about the risks of using public threat...

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 1)

by Emilia Chau, Marin Gheorge, Muhammad Jawad | Aug 28, 2024 | Forensics, Incident Response

JUMPSEC believes heavily in learning and developing through real world experience. The incident described in this blog post presented a fantastic opportunity for 3 junior team members to learn first hand how to conduct, report and respond to an incident investigation. This blog post is split into two parts: Part I focuses on the prerequisites and preparation work done before kicking off the...

Adversary at the Door – Initial Access and what’s currently on the menu

by Patryk Zajdel | Aug 20, 2024 | Initial Access, Red Teaming

Based on the data from the Cyber Security Breaches Survey 2024, phishing with malicious links or malware remains the most common initial access vector, followed by impersonation. The challenge with impersonation attacks is that current technology often struggles to accurately determine the purpose of a website. Although checks on domain maturity, reputation, categorization, and certificates are...

SSH Tunnelling to Punch Through Corporate Firewalls – Updated take on one of the oldest LOLBINs

by Sunny Chau | Aug 13, 2024 | Adversary Infrastructure, Initial Access, Red Teaming

In my formative days of learning network hacking, SSH tunnelling was amongst the first tunnelling techniques that I learnt. I still remember trying to repeatedly decode my notes and diagrams on the rather cumbersome syntax of single port forwarding with the -L and -R flags, which at the time was taught as “the way to do it”. If your foothold is (luckily) a Linux server, then you’re blessed with...

How to Handle Development Projects in a Pentest Company

by Bjoern Schwabe | Aug 6, 2024 | Jumpsec, Research

If you are a pentester you probably never really think about programming. Instead you are testing what others have developed. However, every now and then a quick python or bash script is needed to exploit some stuff you have found, or automate a certain process you are using. Things become interesting when you are in a penetration testing company that has many strong penetration testers and...

How Cloud Migration is Affecting AppSec – A Red Teamer’s Perspective

by Max Corbridge | Jul 4, 2024 | Application Security, Azure Cloud, Azure DevOps, Cloud Red Team, Initial Access, Jumpsec, Red Teaming

Introduction I’ve recently spoken at several conferences about the changes that are underway within red teaming as a result of cloud migration. My team and I have been delivering majority cloud red team work over the last year and the differences are becoming more apparent by the day. One point I’ve mentioned as ‘controversial’ at several of these events is that cloud migration has actually made...

« Older Entries

Next Entries »

JUMPSEC LABS

A Closer Look at Microsoft’s Latest Email Security Requirements – Tooling Release Included!

Tutorial – How to setup a forward proxy with HAProxy that routes TOR through a VPN…in docker

Ranking MFA Methods – From Least to Most Secure

Active Cyber Defence – Taking back control

NTLM Relaying – Making the Old New Again

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 2)

Building Forensic Expertise: A Two-Part Guide to Investigating a Malicious USB Device (Part 1)

Adversary at the Door – Initial Access and what’s currently on the menu

SSH Tunnelling to Punch Through Corporate Firewalls – Updated take on one of the oldest LOLBINs

How to Handle Development Projects in a Pentest Company

[Latest Posts]

[Categories]

GitHub Activity

Twitter

Latest from JUMPSEC

Disclaimer