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Showing posts with the label Threat Detection

Threat Actors weaponize Linux VMs in Hyper-V to Bypass EDR

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1. Introduction Bitdefender's recent discovery and analysis of a threat actor, designated Curly COMrades , reveals a sophisticated campaign employing virtualization technologies to circumvent endpoint detection and response (EDR) solutions and facilitate the execution of custom malware. This novel approach underscores the evolving landscape of advanced persistent threats (APTs) and the increasing need for comprehensive security strategies capable of detecting and mitigating attacks leveraging virtualization-based evasion techniques. The strategic use of lightweight, ephemeral virtual machines (VMs) represents a significant operational security (OPSEC) improvement for the threat actor, complicating forensic analysis and hindering attribution efforts. 2. Activity Overview The primary target and/or motivation of Curly COMrades appears to be aligned with state-sponsored espionage, primarily impacting entities within Georgia and Moldova . Assessed to be active since late 2023, observ...

What is SIEM? Demystified Guide to Strengthen Cybersecurity

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  SIEM Demystified: Level Up Your Cybersecurity with Security Information and Event Management Have you ever felt like you're drowning in a sea of alerts, log files, and security warnings? I know I have. Back in the day, I spent countless sleepless nights sifting through data, desperately trying to connect the dots and figure out if we were under attack. It felt like searching for a single needle in a haystack the size of Texas. That's where SIEM (Security Information and Event Management) comes in. It's not just another cybersecurity buzzword; it's a game-changer that can transform your security posture from reactive to proactive. Imagine your network as a bustling city. Every device, application, and user is a citizen, constantly generating data – emails, logins, file accesses, and more. Now, imagine you're a detective trying to keep the city safe. Without a centralized system, you'd be running around chasing isolated incidents, never seeing the bigger pict...