Tag: malicious
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1,800+ MCP servers exposed without authentication: How zero trust can secure the AI agent revolution
Tags: ai, attack, authentication, breach, cloud, control, credentials, data, data-breach, defense, exploit, framework, governance, identity, infrastructure, Internet, LLM, malicious, monitoring, network, risk, service, supply-chain, threat, tool, vulnerability, zero-trustThe epistemological chasm: What renders MCP vulnerabilities particularly vexatious is the fundamental asymmetry they exploit between machine cognition and human oversight.Tool poisoning attacks insert malevolent instructions into tool metadata that LLMs process with complete fidelity but that remain utterly invisible to human operators. The machine perceives everything; its ostensible supervisors perceive nothing. We have unwittingly…
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Hackers Trick DigiCert Into Issuing Certificates Used to Sign Malware
DigiCert revokes 60 code signing certificates after hackers used a malicious support chat attachment to sign the Zhong Stealer malware. First seen on hackread.com Jump to article: hackread.com/hackers-digicert-issue-certificates-sign-malware/
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Hackers Hijack JDownloader Site to Deliver Malware Through Installers
JDownloader confirms a security breach where hackers manipulated official download links to distribute malicious files between 6 and 7 May 2026. First seen on hackread.com Jump to article: hackread.com/hackers-hijack-jdownloader-site-malware-installers/
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Official JDownloader site served malware to Windows and Linux users between May 6 and May 7
JDownloader website was hacked to distribute malicious Windows and Linux installers carrying a Python RAT between May 67, 2026. JDownloader official website was compromised in a supply chain attack that replaced legitimate Windows and Linux installers with malicious files between May 6 and May 7, 2026. JDownloader is a free, open-source download management application designed…
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Microsoft 365 Copilot Flaws Could Let Attackers Access Sensitive Data
Microsoft has disclosed a trio of critical information disclosure vulnerabilities affecting Microsoft 365 Copilot and Copilot Chat in Microsoft Edge. Released on May 7, 2026, these security flaws pose a substantial risk to enterprise data privacy and corporate confidentiality. If successfully exploited, malicious actors could bypass established security boundaries to access sensitive information processed, summarized,…
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Trending Hugging Face Repo With 200K Downloads Spreads Windows Malware
A malicious Hugging Face repository, Open-OSS/privacy-filter, that abused the platform’s trust and trending algorithm to deliver a sophisticated Rust-based infostealer to Windows users. The project briefly reached the #1 trending position with roughly 244,000 downloads and hundreds of likes before Hugging Face took it down, strongly suggesting the threat actor artificially boosted its popularity to…
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Fake OpenAI Privacy Filter Repo Hits #1 on Hugging Face, Draws 244K Downloads
A malicious Hugging Face repository managed to take a spot in the platform’s trending list by impersonating OpenAI’s Privacy Filter open-weight model to deliver a Rust-based information stealer to Windows users.The project, named Open-OSS/privacy-filter, masqueraded as its legitimate counterpart, released by OpenAI late last month (openai/privacy-filter), including copying the entire First seen on thehackernews.com Jump…
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NWHStealer Campaign Deploys Bun Loader, Anti-VM Evasion, and Encrypted C2
A new distribution method for the NWHStealer infostealer that leverages the Bun JavaScript runtime, marking a significant evolution in the malware’s delivery infrastructure. The threat actors behind this Rust-based stealer are exploiting Bun’s relative newness and high-performance capabilities to package malicious code into larger executables that evade traditional detection methods. Bun is a legitimate, fast…
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Police arrest SMS blaster crew that sent malicious messages to thousands across Toronto
Tags: maliciousToronto police said this is the “first known instance” of an SMS blaster being used in Canada. First seen on techcrunch.com Jump to article: techcrunch.com/2026/05/07/police-arrest-sms-blaster-crew-that-sent-malicious-messages-to-thousands-across-toronto/
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‘TrustFall’ Convention Exposes Claude Code Execution Risk
Malicious repositories can trigger code execution in Claude Code, Cursor CLI, Gemini CLI, and CoPilot CLI with minimal or no user interaction, thanks to skimpy warning dialogs. First seen on darkreading.com Jump to article: www.darkreading.com/application-security/trustfall-exposes-claude-code-execution-risk
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‘TrustFall’ Exposes Claude Code Execution Risk
Researchers find malicious repositories can trigger code execution in Claude Code with minimal or no user interaction. First seen on darkreading.com Jump to article: www.darkreading.com/application-security/trustfall-exposes-claude-code-execution-risk
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Scammers Exploit Disposable VoIP Numbers to Bypass Reputation Blocking
New tactics used by threat actors who embed phone numbers in scam emails as a key indicator of compromise (IOC), revealing how attackers exploit VoIP infrastructure to evade detection and scale fraud operations. Telephone-oriented attack delivery (TOAD) remains a dominant phishing technique, in which victims are lured to call attacker-controlled numbers rather than clicking malicious…
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Fake Claude AI website delivers new ‘Beagle’ Windows malware
A fake version for the Claude AI website offers a malicious Claude-Pro Relay download that pushes a previously undocumented backdoor for Windows named Beagle. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/fake-claude-ai-website-delivers-new-beagle-windows-malware/
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PyPI Packages Deliver ZiChatBot Malware via Zulip APIs on Windows and Linux
Cybersecurity researchers have discovered three packages on the Python Package Index (PyPI) repository that are designed to stealthily deliver a previously unknown malware family called ZiChatBot on Windows and Linux systems.”While these wheel packages do implement the features described on their PyPI web pages, their true purpose is to covertly deliver malicious files,” Kaspersky First…
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Malicious NuGet Packages Steal Browser Credentials, SSH Keys, and Crypto Wallets
Malicious NuGet packages are quietly stealing browser credentials, SSH keys, and cryptocurrency wallet data from developer machines and CI/CD infrastructure, with a particular focus on Chinese .NET ecosystems. The campaign blends legitimate-looking UI and infrastructure libraries with a heavily protected infostealer payload, making it hard for developers and traditional security tools to spot. Packages IR.DantUI, IR.OscarUI, IR.Infrastructure.Core, IR.Infrastructure.DataService.Core,…
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WatchGuard Agent Flaws Allow Attackers to Gain Full SYSTEM Privileges on Windows
Multiple high-severity vulnerabilities in the WatchGuard Agent for Windows could allow malicious actors to elevate their privileges to the highest system level or disrupt critical security services. With CVSS scores up to 8.5, these vulnerabilities pose a significant risk to organizations that rely on WatchGuard for endpoint security and threat protection. WatchGuard Agent Flaws Chained…
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Massive DDoS Attack Generates 2.45 Billion Requests Using 1.2 Million IP Addresses
A distributed denial-of-service attack targeted a major user-generated content platform, generating an astonishing 2.45 billion malicious requests in just 5 hours. Security provider DataDome successfully intercepted the assault in real time, ensuring legitimate users experienced no disruption. Threat researchers analyzing the incident discovered that the operation relied on 1.2 million unique Internet Protocol addresses. Instead…
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New malware turns Linux systems into P2P attack networks
Persistence through rootkits and PAM backdoors: The researchers also wrote of QLNX’s use of rootkits and Linux Pluggable Authentication Modules (PAM) to establish long term persistence. According to Trend Micro, the malware leverages rootkit functionality to conceal malicious activity, processes, and components from administrative tools and security monitoring systems.The malware was also observed tampering with…
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Malicious PyTorch Lightning update hits AI supply chain security
A malicious PyTorch Lightning update (v2.6.3) on PyPI spread briefly, stealing credentials and raising major concerns about AI supply chain security. A malicious update of the PyTorch Lightning library exposed developers to credential theft and remote compromise. Attackers uploaded version 2.6.3 to the Python Package Index (PyPI), where it spread among developers before maintainers removed…
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Malicious OpenClaw Skill Targets Agentic AI Workflows to Deploy RATs and Stealers
OpenClaw’s agent “skill” ecosystem to deliver both Remcos RAT and a cross”‘platform stealer called GhostLoader by hiding malware inside a deceptive DeepSeek integration called “DeepSeek”‘Claw.” The campaign shows how agentic AI workflows with high local privileges can be quietly hijacked through manipulated installation instructions rather than classic exploit chains. OpenClaw, formerly known as Clawdbot and…
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DAEMON Tools Supply Chain Attack Compromises Official Installers with Malware
A newly identified supply chain attack targeting DAEMON Tools software has compromised its installers to serve a malicious payload, according to findings from Kaspersky.”These installers are distributed from the legitimate website of DAEMON Tools and are signed with digital certificates belonging to DAEMON Tools developers,” Kaspersky researchers Igor Kuznetsov, Georgy Kucherin, Leonid First seen on…
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Microsoft Edge Stores Passwords in Process Memory, Posing Enterprise Risk
A proof-of-concept exploit (PoC) shows how someone with admin privileges can exploit the issue to steal passwords, and thus use them to engage in further malicious activity. First seen on darkreading.com Jump to article: www.darkreading.com/cyber-risk/microsoft-edge-passwords-enterprise-risk
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Kaspersky suspects Chinese hackers planted a backdoor into Daemon Tools in ‘widespread’ attack
The cybersecurity company says it’s seen thousands of infection attempts, and at least a dozen successful hacks after users installed malicious versions of the popular Windows software. First seen on techcrunch.com Jump to article: techcrunch.com/2026/05/05/kaspersky-suspects-chinese-hackers-planted-a-backdoor-into-daemon-tools-in-widespread-attack/
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Hackers Abuse DAEMON Tools Distribution Channel to Deliver Malicious Payloads
A sophisticated supply-chain attack has compromised the official distribution channel for DAEMON Tools, delivering multi-stage malware to users worldwide. Since April 8, 2026, threat actors have distributed trojanized installers signed with legitimate digital certificates to conduct highly targeted cyberespionage operations. Attackers successfully breached the development pipeline of AVB Disc Soft, the creators of the widely…
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Stealthy malware abuses Microsoft Phone Link to siphon SMS OTPs from enterprise PCs
Multi-stage infection chain: The intrusion begins with an unknown initial access vector, followed by the execution of a malicious file disguised as a ScreenConnect update, Talos said.The initial payload is a Rust-compiled loader using filenames such as “systemupdates.exe,” which drops a .NET loader disguised as a text file in a system directory, the post said.Persistence…
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WhatsApp Security Flaw Enables Malicious URL Execution Through Instagram Reels
WhatsApp has recently patched two notable security vulnerabilities that could have allowed attackers to execute malicious links and disguise dangerous files. The most alarming discovery involves a flaw in how WhatsApp processes Instagram Reels. This vulnerability allows remote threat actors to trigger arbitrary URLs on a victim’s device by exploiting unvalidated message elements. Meta’s latest…
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CloudZ malware abuses Microsoft Phone Link to steal SMS and OTPs
A new version of the CloudZ remote access tool (RAT) is deploying a previously unseen malicious plugin called Pheno that hijacks the Microsoft Phone Link connection to steal sensitive codes from mobile devices. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/cloudz-malware-abuses-microsoft-phone-link-to-steal-sms-and-otps/
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CISOs step up to the security workforce challenge
Tags: ai, attack, automation, ciso, conference, control, cyber, cyberattack, cybersecurity, jobs, malicious, risk, skills, strategy, technology, threat, tool, trainingGomez-Sanchez and Turpin are speaking at the CSO Cybersecurity Awards & Conference, May 11-13. Reserve your place. And then there’s AI. When it comes to security, AI may help partially offset cyber skills shortages by automating certain tasks, but it also ramps up cyberattack volumes and expands the organizational attack surface, without fixing CISOs’ ongoing talent…
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Apache HTTP Server Vulnerability Exposes Millions to Remote Code Execution Threats
Tags: apache, cve, cyber, flaw, malicious, remote-code-execution, software, threat, update, vulnerabilityThe Apache Software Foundation has released an urgent security update for the Apache HTTP Server to patch a severe vulnerability. Tracked as CVE-2026-23918, this flaw could allow attackers to execute malicious code remotely on affected web servers, putting millions of websites at risk. Understanding the Vulnerability The newly discovered security flaw is classified as a…