Application Containment: How to Use Ringfencing to Prevent the Weaponization of Trusted Software

The challenge facing security leaders is monumental: Securing environments where failure is not an option. Reliance on traditional security postures, such as Endpoint Detection and Response (EDR) to chase threats after they have already entered the network, is fundamentally risky and contributes significantly to the half-trillion-dollar annual cost of cybercrime. Zero Trust fundamentally shifts this […]

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EdgeStepper Implant Reroutes DNS Queries to Deploy Malware via Hijacked Software Updates

Nov 19, 2025Ravie LakshmananCyber Espionage / Malware The threat actor known as PlushDaemon has been observed using a previously undocumented Go-based network backdoor codenamed EdgeStepper to facilitate adversary-in-the-middle (AitM) attacks. EdgeStepper “redirects all DNS queries to an external, malicious hijacking node, effectively rerouting the traffic from legitimate infrastructure used for software updates to attacker-controlled infrastructure,” […]

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ServiceNow AI Agents Can Be Tricked Into Acting Against Each Other via Second-Order Prompts

Nov 19, 2025Ravie LakshmananAI Security / SaaS Security Malicious actors can exploit default configurations in ServiceNow’s Now Assist generative artificial intelligence (AI) platform and leverage its agentic capabilities to conduct prompt injection attacks. The second-order prompt injection, according to AppOmni, makes use of Now Assist’s agent-to-agent discovery to execute unauthorized actions, enabling attackers to copy […]

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Sneaky 2FA Phishing Kit Adds BitB Pop-ups Designed to Mimic the Browser Address Bar

The malware authors associated with a Phishing-as-a-Service (PhaaS) kit known as Sneaky 2FA have incorporated Browser-in-the-Browser (BitB) functionality into their arsenal, underscoring the continued evolution of such offerings and further making it easier for less-skilled threat actors to mount attacks at scale. Push Security, in a report shared with The Hacker News, said it observed […]

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Researchers Detail Tuoni C2’s Role in an Attempted 2025 Real-Estate Cyber Intrusion

Nov 18, 2025Ravie LakshmananMalware / Social Engineering Cybersecurity researchers have disclosed details of a cyber attack targeting a major U.S.-based real-estate company that involved the use of a nascent command-and-control (C2) and red teaming framework known as Tuoni. “The campaign leveraged the emerging Tuoni C2 framework, a relatively new, command-and-control (C2) tool (with a free […]

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Iranian Hackers Use DEEPROOT and TWOSTROKE Malware in Aerospace and Defense Attacks

Nov 18, 2025Ravie LakshmananCyber Espionage / Malware Suspected espionage-driven threat actors from Iran have been observed deploying backdoors like TWOSTROKE and DEEPROOT as part of continued attacks aimed at aerospace, aviation, and defense industries in the Middle East. The activity has been attributed by Google-owned Mandiant to a threat cluster tracked as UNC1549 (aka Nimbus […]

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Microsoft Mitigates Record 15.72 Tbps DDoS Attack Driven by AISURU Botnet

Nov 18, 2025Ravie LakshmananIoT Security / Botnet Microsoft on Monday disclosed that it automatically detected and neutralized a distributed denial-of-service (DDoS) attack targeting a single endpoint in Australia that measured 15.72 terabits per second (Tbps) and nearly 3.64 billion packets per second (pps). The tech giant said it was the largest DDoS attack ever observed […]

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Google Issues Security Fix for Actively Exploited Chrome V8 Zero-Day Vulnerability

Nov 18, 2025Ravie LakshmananBrowser Security / Vulnerability Google on Monday released security updates for its Chrome browser to address two security flaws, including one that has come under active exploitation in the wild. The vulnerability in question is CVE-2025-13223 (CVSS score: 8.8), a type confusion vulnerability in the V8 JavaScript and WebAssembly engine that could […]

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New EVALUSION ClickFix Campaign Delivers Amatera Stealer and NetSupport RAT

Nov 17, 2025Ravie Lakshmanan Cybersecurity researchers have discovered malware campaigns using the now-prevalent ClickFix social engineering tactic to deploy Amatera Stealer and NetSupport RAT. The activity, observed this month, is being tracked by eSentire under the moniker EVALUSION. First spotted in June 2025, Amatera is assessed to be an evolution of ACR (short for “AcridRain”) […]

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5 Reasons Why Attackers Are Phishing Over LinkedIn

Phishing attacks are no longer confined to the email inbox, with 1 in 3 phishing attacks now taking place over non-email channels like social media, search engines, and messaging apps. LinkedIn in particular has become a hotbed for phishing attacks, and for good reason. Attackers are running sophisticated spear-phishing attacks against company executives, with recent […]

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RondoDox Exploits Unpatched XWiki Servers to Pull More Devices Into Its Botnet

Nov 15, 2025Ravie LakshmananMalware / Vulnerability The botnet malware known as RondoDox has been observed targeting unpatched XWiki instances against a critical security flaw that could allow attackers to achieve arbitrary code execution. The vulnerability in question is CVE-2025-24893 (CVSS score: 9.8), an eval injection bug that could allow any guest user to perform arbitrary […]

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Five U.S. Citizens Plead Guilty to Helping North Korean IT Workers Infiltrate 136 Companies

The U.S. Department of Justice (DoJ) on Friday announced that five individuals have pleaded guilty to assisting North Korea’s illicit revenue generation schemes by enabling information technology (IT) worker fraud in violation of international sanctions. The five individuals are listed below – Audricus Phagnasay, 24 Jason Salazar, 30 Alexander Paul Travis, 34 Oleksandr Didenko, 28, […]

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North Korean Hackers Turn JSON Services into Covert Malware Delivery Channels

Nov 14, 2025Ravie LakshmananMalware / Threat Intelligence The North Korean threat actors behind the Contagious Interview campaign have once again tweaked their tactics by using JSON storage services to stage malicious payloads. “The threat actors have recently resorted to utilizing JSON storage services like JSON Keeper, JSONsilo, and npoint.io to host and deliver malware from […]

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Researchers Find Serious AI Bugs Exposing Meta, Nvidia, and Microsoft Inference Frameworks

Cybersecurity researchers have uncovered critical remote code execution vulnerabilities impacting major artificial intelligence (AI) inference engines, including those from Meta, Nvidia, Microsoft, and open-source PyTorch projects such as vLLM and SGLang. “These vulnerabilities all traced back to the same root cause: the overlooked unsafe use of ZeroMQ (ZMQ) and Python’s pickle deserialization,” Oligo Security researcher […]

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Iranian Hackers Launch ‘SpearSpecter’ Spy Operation on Defense & Government Targets

The Iranian state-sponsored threat actor known as APT42 has been observed targeting individuals and organizations that are of interest to the Islamic Revolutionary Guard Corps (IRGC) as part of a new espionage-focused campaign. The activity, detected in early September 2025 and assessed to be ongoing, has been codenamed SpearSpecter by the Israel National Digital Agency […]

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Ransomware’s Fragmentation Reaches a Breaking Point While LockBit Returns

Key Takeaways: 85 active ransomware and extortion groups observed in Q3 2025, reflecting the most decentralized ransomware ecosystem to date. 1,590 victims disclosed across 85 leak sites, showing high, sustained activity despite law-enforcement pressure. 14 new ransomware brands launched this quarter, proving how quickly affiliates reconstitute after takedowns. LockBit’s reappearance with version 5.0 signals potential […]

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Chinese Hackers Use Anthropic’s AI to Launch Automated Cyber Espionage Campaign

State-sponsored threat actors from China used artificial intelligence (AI) technology developed by Anthropic to orchestrate automated cyber attacks as part of a “highly sophisticated espionage campaign” in mid-September 2025. “The attackers used AI’s ‘agentic’ capabilities to an unprecedented degree – using AI not just as an advisor, but to execute the cyber attacks themselves,” the […]

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Fortinet FortiWeb Flaw Actively Exploited in the Wild Before Company’s Silent Patch

Nov 14, 2025Ravie LakshmananThreat Intelligence / Vulnerability Cybersecurity researchers are sounding the alert about an authentication bypass vulnerability in Fortinet Fortiweb WAF that could allow an attacker to take over admin accounts and completely compromise a device. “The watchTowr team is seeing active, indiscriminate in-the-wild exploitation of what appears to be a silently patched vulnerability […]

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Fake Chrome Extension “Safery” Steals Ethereum Wallet Seed Phrases Using Sui Blockchain

Nov 13, 2025Ravie LakshmananBrowser Security / Threat Intelligence Cybersecurity researchers have uncovered a malicious Chrome extension that poses as a legitimate Ethereum wallet but harbors functionality to exfiltrate users’ seed phrases. The name of the extension is “Safery: Ethereum Wallet,” with the threat actor describing it as a “secure wallet for managing Ethereum cryptocurrency with […]

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Operation Endgame Dismantles Rhadamanthys, Venom RAT, and Elysium Botnet in Global Crackdown

Nov 13, 2025Ravie LakshmananBotnet / Cybercrime Malware families like Rhadamanthys Stealer, Venom RAT, and the Elysium botnet have been disrupted as part of a coordinated law enforcement operation led by Europol and Eurojust. The activity, which is taking place between November 10 and 13, 2025, marks the latest phase of Operation Endgame, an ongoing operation […]

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ThreatsDay Bulletin: Cisco 0-Days, AI Bug Bounties, Crypto Heists, State-Linked Leaks and 20 More Stories

Nov 13, 2025Ravie LakshmananCybersecurity / Hacking News Behind every click, there’s a risk waiting to be tested. A simple ad, email, or link can now hide something dangerous. Hackers are getting smarter, using new tools to sneak past filters and turn trusted systems against us. But security teams are fighting back. They’re building faster defenses, […]

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CISA Flags Critical WatchGuard Fireware Flaw Exposing 54,000 Fireboxes to No-Login Attacks

Nov 13, 2025Ravie LakshmananVulnerability / Network Security The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical security flaw impacting WatchGuard Fireware to its Known Exploited Vulnerabilities (KEV) catalog, based on evidence of active exploitation. The vulnerability in question is CVE-2025-9242 (CVSS score: 9.3), an out-of-bounds write vulnerability affecting Fireware OS 11.10.2 […]

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