All news with #varonis tag

CPU Spike Reveals RansomHub Intrusion Before Ransomware

🔍 Varonis responded after a server CPU spike exposed an active intrusion later attributed to RansomHub affiliates. The attacker gained initial access via a SocGholish JavaScript masquerading as a browser update, then deployed a persistent Python-based SOCKS proxy and automated reconnaissance to hunt credentials and enumerate Active Directory. Within hours the actor obtained Domain Admin privileges and initiated broad discovery and exfiltration; Varonis developed an unpacker, identified IOCs, and coordinated containment and remediation that prevented ransomware with zero downtime.

Data Security Posture Management: Top DSPM Tools Reviewed

🛡️ Data Security Posture Management (DSPM) tools help organizations discover, classify and manage sensitive data across dynamic cloud environments. They focus on locating "shadow data" in known and unknown repositories and typically collect metadata via agentless or API-based scans to avoid moving raw data. DSPM dashboards catalog findings, map lineage and assess compliance, while remediation often integrates with SOAR, SIEM or CNAPP solutions. Many vendors now combine discovery with some automated "fix it" capabilities to streamline response.

Varonis Interceptor: Multimodal AI Email Defense Platform

🛡️ Varonis introduces Interceptor, an AI-native email security solution that combines multimodal AI—visual, linguistic, and behavioral models—to detect advanced phishing, BEC, and social engineering. It augments or replaces API-based filters with a phishing sandbox that pre-analyzes newly registered domains and URLs and a lightweight browser extension for multichannel protection. Integrated with the Varonis Data Security Platform, Interceptor aims to reduce false positives, accelerate detection of zero-hour threats, and stop breaches earlier in the attack chain.

New MatrixPDF Phishing Technique Targets Gmail Users

📄 Researchers at Varonis have identified a sophisticated phishing toolkit called MatrixPDF that embeds prompts, JavaScript, and external redirects inside seemingly legitimate PDF files to target Gmail users. Attackers exploit Gmail's preview and desktop PDF readers: a blurred preview displays a prompt to 'open secure document' that directs victims to external payloads, while embedded scripts can fetch malware if a user grants permission. Because the malicious content is only retrieved after user interaction, Gmail's automated scanners and attachment sandboxes can be bypassed. Security experts recommend stronger webmail controls, robust attachment sandboxing, endpoint detection, and frequent, realistic user awareness training.

MatrixPDF: PDFs Weaponized to Evade Gmail Defenses

📄 Researchers at Varonis have discovered MatrixPDF, a toolkit that disguises malicious web redirects and scripts inside seemingly benign PDFs to bypass Gmail filters. The files use blurred content, overlays and convincing prompts such as “Open Secure Document” to trick users into opening external sites. In some cases embedded JavaScript can auto-fetch payloads when a reader grants permission. Because Gmail treats preview clicks as user-initiated, these PDFs often evade email scanners and sandboxes.

MatrixPDF toolkit converts PDFs into phishing lures

📄 MatrixPDF is a newly observed toolkit that converts ordinary PDFs into interactive phishing and malware lures, researchers report. First seen advertised on cybercrime forums and promoted via Telegram, it embeds blurred content, fake "Secure Document" prompts, clickable overlays and JavaScript actions that redirect users to external payloads. Varonis testing showed these PDFs can bypass Gmail filters because they contain no embedded binaries and rely on user clicks to fetch malicious content. Sellers offer subscriptions from $400/month to $1,500/year.