ThreatsDay Bulletin: DNS Poisoning Flaw, Supply-Chain Heist, Rust Malware Trick and New RATs Rising
The comfort zone in cybersecurity is gone. Attackers are scaling down, focusing tighter, and squeezing more value from fewer, high-impact…
Russian Hackers Target Ukrainian Organizations Using Stealthy Living-Off-the-Land Tactics
Organizations in Ukraine have been targeted by threat actors of Russian origin with an aim to siphon sensitive data and maintain persistent…
Researchers Expose GhostCall and GhostHire: BlueNoroff's New Malware Chains
Threat actors tied to North Korea have been observed targeting the Web3 and blockchain sectors as part of twin campaigns tracked as GhostCall…
Chrome Zero-Day Exploited to Deliver Italian Memento Labs' LeetAgent Spyware
The zero-day exploitation of a now-patched security flaw in Google Chrome led to the distribution of an espionage-related tool from Italian…
⚡ Weekly Recap: WSUS Exploited, LockBit 5.0 Returns, Telegram Backdoor, F5 Breach Widens
Security, trust, and stability — once the pillars of our digital world — are now the tools attackers turn against us. From stolen…
Qilin Ransomware Combines Linux Payload With BYOVD Exploit in Hybrid Attack
The ransomware group known as Qilin (aka Agenda, Gold Feather, and Water Galura) has claimed more than 40 victims every month since the start…
APT36 Targets Indian Government with Golang-Based DeskRAT Malware Campaign
A Pakistan-nexus threat actor has been observed targeting Indian government entities as part of spear-phishing attacks designed to deliver a…
Secure AI at Scale and Speed — Learn the Framework in this Free Webinar
AI is everywhere—and your company wants in. Faster products, smarter systems, fewer bottlenecks. But if you're in security, that…
ThreatsDay Bulletin: $176M Crypto Fine, Hacking Formula 1, Chromium Vulns, AI Hijack & More
Criminals don’t need to be clever all the time; they just follow the easiest path in: trick users, exploit stale components, or abuse…
Iran-Linked MuddyWater Targets 100+ Organisations in Global Espionage Campaign
The Iranian nation-state group known as MuddyWater has been attributed to a new campaign that has leveraged a compromised email account to…
Ukraine Aid Groups Targeted Through Fake Zoom Meetings and Weaponized PDF Files
Cybersecurity researchers have disclosed details of a coordinated spear-phishing campaign dubbed PhantomCaptcha targeting organizations…
Researchers Identify PassiveNeuron APT Using Neursite and NeuralExecutor Malware
Government, financial, and industrial organizations located in Asia, Africa, and Latin America are the target of a new campaign dubbed…
PolarEdge Targets Cisco, ASUS, QNAP, Synology Routers in Expanding Botnet Campaign
Cybersecurity researchers have shed light on the inner workings of a botnet malware called PolarEdge. PolarEdge was first documented by Sekoia…
Google Identifies Three New Russian Malware Families Created by COLDRIVER Hackers
A new malware attributed to the Russia-linked hacking group known as COLDRIVER has undergone numerous developmental iterations since May 2025,…
Hackers Used Snappybee Malware and Citrix Flaw to Breach European Telecom Network
A European telecommunications organization is said to have been targeted by a threat actor that aligns with a China-nexus cyber espionage…
Weekly Recap: F5 Breached, Linux Rootkits, Pixnapping Attack, EtherHiding & More
It's easy to think your defenses are solid — until you realize attackers have been inside them the whole time. The latest incidents show…
New .NET CAPI Backdoor Targets Russian Auto and E-Commerce Firms via Phishing ZIPs
Cybersecurity researchers have shed light on a new campaign that has likely targeted the Russian automobile and e-commerce sectors with a…
North Korean Hackers Combine BeaverTail and OtterCookie into Advanced JS Malware
The North Korean threat actor linked to the Contagious Interview campaign has been observed merging some of the functionality of two of its…
Microsoft Revokes 200 Fraudulent Certificates Used in Rhysida Ransomware Campaign
Microsoft on Thursday disclosed that it revoked more than 200 certificates used by a threat actor it tracks as Vanilla Tempest to fraudulently…
North Korean Hackers Use EtherHiding to Hide Malware Inside Blockchain Smart Contracts
A threat actor with ties to the Democratic People's Republic of Korea (aka North Korea) has been observed leveraging the EtherHiding technique…
LinkPro Linux Rootkit Uses eBPF to Hide and Activates via Magic TCP Packets
An investigation into the compromise of an Amazon Web Services (AWS)-hosted infrastructure has led to the discovery of a new GNU/Linux rootkit…
Operation Zero Disco: Critical Cisco SNMP Flaw (CVE-2025-20352) Used to Implant Linux Rootkits on Switches
researchers from Trend Research have uncovered a sophisticated campaign — dubbed “Operation Zero Disco” — in which…
Chinese Threat Group 'Jewelbug' Quietly Infiltrated Russian IT Network for Months
A threat actor with ties to China has been attributed to a five-month-long intrusion targeting a Russian IT service provider, marking the…
Over 100 VS Code Extensions Exposed Developers to Hidden Supply Chain Risks
New research has uncovered that publishers of over 100 Visual Studio Code (VS Code) extensions leaked access tokens that could be exploited by…
Sekoia Exposes PolarEdge Backdoor: Custom mbedTLS C2 Compromising Cisco, QNAP, and Synology Devices
Sekoia Threat Detection & Response (TDR) researchers have published an in-depth technical analysis of the PolarEdge Backdoor, a stealthy…
PolarEdge With Custom TLS Server Uses Custom Binary Protocol for C2 Communication
A sophisticated backdoor malware targeting Internet of Things devices has surfaced, employing advanced communication techniques to maintain…
Chinese Hackers Exploit ArcGIS Server as Backdoor for Over a Year
Threat actors with ties to China have been attributed to a novel campaign that compromised an ArcGIS system and turned it into a backdoor for…
Chinese hackers abuse geo-mapping tool for year-long persistence
Chinese state hackers remained undetected in a target environment for more than a year by turning a component in the ArcGIS geo-mapping tool…
npm, PyPI, and RubyGems Packages Found Sending Developer Data to Discord Channels
Cybersecurity researchers have identified several malicious packages across npm, Python, and Ruby ecosystems that leverage Discord as a…
Stealth C2: Hackers Abuse Discord Webhooks for Covert Data Exfiltration in npm, PyPI, and RubyGems Supply Chain Attacks
The Socket Threat Research Team has uncovered a growing trend among malicious package developers: leveraging Discord webhooks as…
Weekly Recap: WhatsApp Worm, Critical CVEs, Oracle 0-Day, Ransomware Cartel & More
Every week, the cyber world reminds us that silence doesn't mean safety. Attacks often begin quietly — one unpatched flaw, one…
Microsoft Locks Down IE Mode After Hackers Turned Legacy Feature Into Backdoor
Microsoft said it has revamped the Internet Explorer (IE) mode in its Edge browser after receiving "credible reports" in August 2025 that…
New Rust-Based Malware "ChaosBot" Uses Discord Channels to Control Victims' PCs
Cybersecurity researchers have disclosed details of a new Rust-based backdoor called ChaosBot that can allow operators to conduct…
Threat Actors Exploiting SonicWall SSL VPN Devices in Wild to Deploy Akira Ransomware
Threat actors have reemerged in mid-2025 leveraging previously disclosed vulnerabilities in SonicWall SSL VPN appliances to deploy Akira…
Google: Clop Accessed “Significant Amount” of Data in Oracle EBS Exploit
The Clop ransomware group likely began targeting Oracle E-Business Suite (EBS) instances as early as August 9, successfully exfiltrating a…
CL0P-Linked Hackers Breach Dozens of Organizations Through Oracle Software Flaw
Dozens of organizations may have been impacted following the zero-day exploitation of a security flaw in Oracle's E-Business Suite (EBS)…
CL0P Extortion: Google/Mandiant Expose Zero-Day RCE in Oracle E-Business Suite (CVE-2025-61882)
Google Threat Intelligence Group (GTIG) and Mandiant have jointly disclosed an extensive data theft and extortion campaign targeting Oracle…
From HealthKick to GOVERSHELL: The Evolution of UTA0388's Espionage Malware
A China-aligned threat actor codenamed UTA0388 has been attributed to a series of spear-phishing campaigns targeting North America, Asia, and…
From Phishing to Malware: AI Becomes Russia's New Cyber Weapon in War on Ukraine
Russian hackers' adoption of artificial intelligence (AI) in cyber attacks against Ukraine has reached a new level in the first half of 2025…
Nezha Tool Used in New Cyber Campaign Targeting Web Applications
A newly uncovered cyber campaign featuring the open-source tool Nezha has been observed targeting vulnerable web applications. Beginning in…
OpenAI Disrupts Russian, North Korean, and Chinese Hackers Misusing ChatGPT for Cyberattacks
OpenAI on Tuesday said it disrupted three activity clusters for misusing its ChatGPT artificial intelligence (AI) tool to facilitate malware…
ShinyHunters Wage Broad Corporate Extortion Spree
A cybercriminal group that used voice phishing attacks to siphon more than a billion records from Salesforce customers earlier this year has…