Security Insights
Latest threat analysis, industry news, and security best practices from our expert team.
E4del and PINHOLE RATs: Detecting FTP Banner Dead Drop Resolvers Before C2 Resolution
Threat actors have found a new place to hide their command-and-control addresses: inside the welcome banners of public FTP servers. A newly ...
Mass Zimbra Collaboration Suite Exploitation: 270+ Servers Breached via Unauthenticated RCE — Detection and Remediation Guide
Threat actors have breached more than 270 Zimbra Collaboration Suite (ZCS) instances in an ongoing, active exploitation campaign abusing an ...
ShinyHunters Impersonates Security Staff to Breach ReliaQuest: Detecting and Defeating Help Desk Social Engineering
Introduction ReliaQuest — a well-known managed detection and response provider — has publicly confirmed that one of its own employees was ta...
SynkLoader Multitool Malware: Screen-Hijacking Credential Theft and Pre-Ransomware Staging — Detection and Hardening Guide
Introduction Security researchers have detailed SynkLoader, a multilingual malware multitool that resurrects a technique many defenders had ...
DOUBLECUP PNG Payloads: Detect Fake Steganography and Image-Embedded Malware
DOUBLECUP PNG Payloads: Detect Fake Steganography and Image-Embedded Malware The SANS Internet Storm Center diary entry on DOUBLECUP calls o...
Cryptographic Context Injection: Zero-Click Grok Chat History Theft — Detection and Defense Guide for AI-Integrated Environments
Introduction Adversa AI researcher Rony Utevsky has disclosed a new attack technique dubbed Cryptographic Context Injection, demonstrated ag...
BADBOX Proxyware Hits Android Car Head Units: Detection, Containment, and Remediation Guide
BADBOX Proxyware Hits Android Car Head Units: Detection, Containment, and Remediation Guide In June 2026, Kaspersky researchers published fi...
Agent Tesla v4 Emoji Obfuscation Campaign: Detection and Defense Guide for SOC Teams
Agent Tesla v4 Raises the Bar on Evasion — and Your Signatures Won't Catch It KnowBe4's threat research team has disclosed a new Agent Tesla...
FTP Banner C2 Abuse Delivers E4del and PINHOLE RATs — Detection and Hunting Guide for Windows Defenders
Threat Actors Are Turning FTP Banners Into a Command Channel — and Dropping Two New RATs A newly reported campaign is abusing a component mo...