Cyber-Defence

Introduction This repository holds information released publicly by NCC Group's Cyber Incident Response Team. Contact To request further information about anything in this repository please contact the team at [email protected]. To engage with our CIRT team due to a breach please contact...

GoAT

GoAT Golang Advanced Trojan is a trojan created in Go, using Twitter as a the C&C server. GoAT has some very unique and impressive capabilities, including multithreaded command execution and a sophisticated self defence rootkit module written in C. If you're not familiar with malware, please do n...

CVE-2024-4956

A repository of scripts that were produced as part of my "Art of Defence" blog. Art-of-Defence - Sonatype Nexus CVE-2024-4956:...

Improving Interoperability among Defence and National Security Ontologies: Analysis and Evaluation Tasks

The use of ontologies and knowledge graphs is becoming increasingly widespread in the defence and national security domain. Numerous ontologies have been developed through initiatives led by academia, industry, and government. Achieving interoperability across diverse defence and national securit...

Practical Graph Optimisation and AI-Driven Models for Active Directory Security Hardening

Microsoft's Active Directory AD is a directory service that enables the IT admin to manage security permissions and control access within a Windows domain network. As a core management system in many of organisation, AD has become a primary target for adversaries. While many solutions for hardeni...

GDM AI Control Roadmap

AI agents are rapidly accelerating work at frontier AI companies, helping with AI R&D, cyber-defence, and advancing scientific discoveries. As these agents become more tightly integrated into our systems, unlocking their full potential requires rethinking how we do security. We should not assume...

net/rsync -- multiple vulnerabilities

The rsync project reports: Six CVEs are fixed in this release. All six are assigned by VulnCheck as CNA. Affected versions are 3.4.2 and earlier in every case. In addition to the six CVE fixes, this release adds defence-in-depth hardening on several adjacent paths: bounded wire-supplied counts an...

Strategic Commitments Shape Collective Cybersecurity under AI Inequality

The growing integration of AI into cybersecurity is reshaping the balance between attackers and defenders. When access to advanced AI-enabled defence tools is uneven, resource-limited defenders may be unable to adopt effective protection, creating persistent system vulnerabilities. We study the...

ciguard: Web UI is missing HTTP defence-in-depth headers

Summary ciguard's FastAPI Web UI src/ciguard/web/app.py does not set HTTP defence-in-depth headers. OWASP ZAP baseline scan flagged 11 alerts: missing Content-Security-Policy Medium, X-Frame-Options Medium, Sub-Resource-Integrity on /api/docs Medium, COOP / COEP / CORP Low, Permissions-Policy Low...

DCSync Detection Without Signatures: Trellix NDR and the Power of Technique-Based Defense

DCSync Detection Without Signatures: Trellix NDR and the Power of Technique-Based Defense By Maulik Maheta and Chao Sun · April 14, 2026 Executive summary A DCSync attack is one of the most formidable techniques an adversary can deploy after gaining a foothold in an Active Directory AD environmen...

CVE-2026-2191

A weakness has been identified in Tenda AC9 15.03.06.42multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could ...

CVE-2026-2191

A weakness has been identified in Tenda AC9 15.03.06.42multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could ...

AEGIS: White-Box Attack Path Generation Using LLMs and Training Effectiveness Evaluation for Large-Scale Cyber Defence Exercises

Creating attack paths for cyber defence exercises requires substantial expert effort. Existing automation requires vulnerability graphs or exploit sets curated in advance, limiting where it can be applied. We present AEGIS, a system that generates attack paths using LLMs, white-box access, and...

Iranian Hackers Use Fake Job Lures to Breach Europe’s Critical Industries

New research from Check Point Research reveals the Iranian cyber group Nimbus Manticore is targeting defence, telecom, and aerospace companies in Europe with fake job offers. Learn how they use advanced malware to steal sensitive data...

Risk Assessment and Security Analysis of Large Language Models

As large language models LLMs expose systemic security challenges in high risk applications, including privacy leaks, bias amplification, and malicious abuse, there is an urgent need for a dynamic risk assessment and collaborative defence framework that covers their entire life cycle. This paper...

Quantum Machine Learning

The meteoric rise of artificial intelligence in recent years has seen machine learning methods become ubiquitous in modern science, technology, and industry. Concurrently, the emergence of programmable quantum computers, coupled with the expectation that large-scale fault-tolerant machines will...

Co-Evolutionary Dynamics of Attack and Defence in Cybersecurity

In the evolving digital landscape, it is crucial to study the dynamics of cyberattacks and defences. This study uses an Evolutionary Game Theory EGT framework to investigate the evolutionary dynamics of attacks and defences in cyberspace. We develop a two-population asymmetric game between attack...

Russian Cyber Offensive Shifts Focus to Ukraine’s Military Infrastructure

SSSCIP reports a strategic shift in Russian cyber operations in H1 2024. Targeting Ukraine's defence sectors, attacks doubled,…...

Australian Defence Force Private and Husband Charged with Espionage for Russia

Two Russian-born Australian citizens have been arrested and charged in the country for spying on behalf of Russia as part of a "complex" law enforcement operation codenamed BURGAZADA. This includes a 40-year-old woman, an Australian Defence Force ADF Army Private, and her husband, a 62-year-old...

HUMINT in a cyber world

TL;DR HUMINT / Human Intelligence is gathered from a person in the location in question. It’s the sort of information we think of in the context of spying. A modern intelligence apparatus is multi-discipline with many different collection methods. HUMINT sources include officers, agents, diplomat...