ZeroHour
DashboardNewsCVEsExploitsIncidentsAIBriefAnalyticsEntitiesWatchlistIOCsAsk the feedSourcesFeeds & APIKiosk mode

Search: “extensions”

20 stories in the last 24h

Searchkeywordsmart Sortlatesthotimportancerelevance
DomainAllCyberAIWindow24h3d7d30dAllIn the wildImportant onlyShow duplicates
CategoryAllMalware 5Threat actor 3Industry 3Research 2Vulnerability 2Exploit / PoC 2Policy & legal 2Phishing & fraud 1Data breach 1Advisory 1
SeverityAllcritical 1high 8medium 5low 1info 7

Malware bypasses browser checks to force install Chrome, Edge extensions

Elastic Security Labs detailed KREMLIN, a Brazilian banking malware that silently installs malicious Chrome and Edge extensions, with 1,515 confirmed infections.

Elastic Security Labs analyzed KREMLIN, a toolkit used by a Brazilian operation in at least seven campaigns since May 2025 that impersonates 12 banks to trick users into opening a JavaScript file disguised as a bank receipt or invoice. After anti-sandbox checks, it downloads Node.js, persists via a scheduled task, and fetches payload locations from an Ethereum smart contract, hiding payloads in JPEG images on Internet Archive. The toolkit bypasses Chromium integrity mechanisms to install unapproved Chrome/Edge extensions masquerading as AVSync that steal cookies, keylog form input, capture screenshots, and intercept HTTP traffic, while recent campaigns deployed the REMCOS RAT and earlier ones Pulsar RAT. Elastic confirmed 1,515 infected systems, almost all in Brazil, and disrupted the campaign by registering an anti-sandbox canary domain; the linked wallet handled roughly 20,800 USDT incoming and 19,000 USDT outgoing.

BleepingComputer · 16h agoMalware in the wild 3 sources

CVE-2026-87976: Apache NiFi Registry: Improper Limitation of Pathname in Persisted Extension Bundles

Apache NiFi Registry 0.4.0-2.11.0 allows path manipulation when storing extension bundle content from uploaded NAR manifests (CVE-2026-87976, High).

Apache NiFi Registry versions 0.4.0 through 2.11.0 are affected by improper limitation of a pathname (CVE-2026-87976), rated High severity by the maintainers. When storing extension bundle content, the default file persistence provider used group, artifact, and version coordinates from uploaded NAR manifests as filesystem path components without sufficient validation. The disclosure was posted by Apache NiFi maintainer David Handermann on the oss-security mailing list.

oss-security · 20h agoVulnerability 4 sourcesCVE-2026-87976

Fake AI trading agent steals crypto wallet passwords

Fake AI crypto trading agent sites deliver Needle Stealer, which replaces browser wallet extensions to steal wallet passwords, HP reports.

HP researchers tracked campaigns between April and June 2026 in which a fake AI trading agent site, tradingclaw[.]pro, distributed a Microsoft-signed OLEView executable that DLL side-loads a malicious iviewers.dll and launches Needle Stealer via process hollowing. Needle replaces one of seven browser wallet extensions, including MetaMask, Coinbase Wallet, and Phantom, to capture wallet passwords. Related campaigns used QR-code invoice phishing leading to fake OneDrive pages, Phantom Stealer sold as a penetration testing tool with VBScript-to-PowerShell steganographic loaders, and image-hidden payloads delivering XWorm, PureLogs Stealer, and Formbook; a perceptual-hash VirusTotal search found about 400 distinct rigged images.

Help Net Security · 3h agoMalware in the wild1

When scanners miss the attack: how Cloudflare Client-Side Security protects storefronts

Cloudflare's Page Shield ML uncovered four malicious JavaScript campaigns on storefronts, including affiliate fraud and a remote-backdoor script, that VirusTotal and URLScan missed.

Cloudflare's Page Shield ML detected four client-side JavaScript operations (eight payloads) in live traffic on online storefronts, enabling affiliate commission hijacking, clickless affiliate theft via hidden iframes, user tracking with a remote-code backdoor, and cloaking of paid mobile visitors. Seven of the eight payloads were absent from VirusTotal and URLScan returned no malicious verdict for any, including a Lnkr-family payload indexed unclassified for roughly 2.5 years. Detection relies on a graph neural network over JavaScript syntax trees, an LLM second opinion on Workers AI, and a frontier-model ensemble voting across benign, magecart, other malware, and cryptomining labels.

Cloudflare Blog · 15h agoMalware in the wild

USN-8775-1: SQLite vulnerability

Ubuntu issued USN-8775-1 fixing a buffer overflow in SQLite's sqlar extension that could cause denial of service via a crafted archive.

Ubuntu Security Notice USN-8775-1 addresses a buffer overflow in the sqlar extension of SQLite. An attacker could trick a user into opening a specially crafted SQLar archive, causing a denial of service. No CVE id is listed in the notice and no exploitation is reported.

Ubuntu Security Noticesupdated · 15h agofirst · 18h agoAdvisory 7 sources

Enterprise Threat Intelligence Buying Guide: How to Choose the Right Solution

ANY.RUN published a buyer's guide for enterprise threat intelligence platforms, outlining evaluation criteria and promoting its own TI products.

ANY.RUN, whose sandbox, TI Lookup, and TI Feeds products are featured throughout, published guidance for selecting an enterprise threat intelligence provider. The guide recommends defining SOC or MSSP requirements first, then weighing intelligence quality and freshness, integrations including STIX/TAXII support, privacy, scalability, and proof-of-concept testing with real alerts. It emphasizes context and enrichment over raw data volume, citing figures such as TI Lookup results in about 2 seconds and 99% validated IOCs in its feeds.

ANY.RUNupdated · 3h agofirst · 4h agoIndustry 3 sources

Three Threat Groups Target Russian Enterprises With Backdoors, Ransomware, and Wipers

Kaspersky details NightEagle, Hacking Cat, and Toy Ghouls targeting Russian enterprises with Exchange backdoors, Gorilla RAT, and destructive Monkey ransomware.

Kaspersky reports three threat clusters targeting Russian enterprises: NightEagle (APT-Q-95), the pro-Ukrainian hacktivist group Hacking Cat, and Toy Ghouls. NightEagle uses compromised VPN credentials and the GhostContainer modular backdoor to fully compromise Microsoft Exchange servers, chaining CVE-2020-0688 exploitation, BlueKeep (CVE-2019-0708), Active Directory vulnerabilities, and DCSync to seize domain controllers. Hacking Cat exploits Exchange flaws including CVE-2021-26855 and CVE-2026-42897 to deliver the Gorilla RAT and multiple Monkey ransomware variants written in Rust, .NET, C++, and Golang targeting Windows, Linux, and VMware ESXi, with some variants acting as wipers that never store the encryption key.

The Hacker Newsupdated · 3h agofirst · 20h agoThreat actor in the wild 5 sourcesCVE-2020-0688CVE-2019-0708CVE-2021-26855+1 CVEs1

PHP Webshell Campaign Targets WordPress Through Critical WooCommerce Plugin Bug

Wordfence blocked over 100,000 exploitation attempts against CVE-2026-27540 in WooCommerce Wholesale Lead Capture, letting attackers upload PHP webshells to WordPress sites.

Wordfence reported more than 100,000 blocked exploitation attempts against CVE-2026-27540 in the WooCommerce Wholesale Lead Capture plugin (roughly 6,000 active installs), which was disclosed and patched on February 20 in version 2.0.3.2. The unauthenticated AJAX handler wwlc_file_upload_handler reads permitted file extensions from the attacker-controlled request, enabling arbitrary file upload of PHP files such as shell.php that report host details and serve further upload forms. Attack activity peaked between June 4 and June 17, 2026, with additional waves on July 1 and August 30. Wordfence rates the flaw CVSS 9.8, while Patchstack's CVE record lists 9.0.

Infosecurity Magazine · 20h agoExploit / PoC in the wild 6 sourcesCVE-2026-27540

12 Best DSPM Tools Compared (2026): Features & Pricing

A 2026 buyer's guide compares 12 DSPM vendors' features and pricing, warning per-TB data-volume billing inflates long-term cloud security costs.

The article compares 12 data security posture management (DSPM) tools, including Palo Alto Networks (Dig), BigID, Wiz, Symmetry Systems, Varonis, CrowdStrike (Flow Security), Cyera, and Tenable (Eureka), focusing on billing models such as per-TB scanning, per-data-store, per-identity, and pay-as-you-go. It highlights vendor consolidation through acquisitions and advises negotiating scan-volume caps and clarifying whether shadow copies and dev clones count as billable data.

GBHackers · 1h agoIndustry 3 sources

16-31 August 2026 Cyber Attacks Timeline Infographic

Hackmageddon mapped 110 confirmed cyber incidents from August 16-31, 2026, with cybercrime driving 78.2% and malware the top technique.

The biweekly timeline aggregates 110 confirmed incidents across 64 countries, with 86 attributed to cybercrime, 16 to espionage and 4 to hacktivism. Exploitation of public-facing applications (T1190) was the leading initial access vector with 33 incidents, followed by spearphishing attachments with 13. The United States was the most targeted country with 38 incidents, and information and communication was the top sector with 29.

Hackmageddon · 1h agoResearch 2 sources

APT36 Targets Indian Government and Defense Organizations With New Rust Malware Arsenal

Pakistan-linked APT36 deployed a Rust malware suite, including RUSTYSHADE and USB-spreading RUSTYMOVE, against Indian and Afghan government and defense targets.

Zscaler ThreatLabz tracks the August 2026 activity as Operation RapidRust, introducing the Rust-based RUSTYSHADE backdoor, the RUSTYMOVE removable-media propagation utility, and PSNATCH and BASHNATCH file stealers for Windows and Linux. RUSTYSHADE uses private GitHub repositories as C2 with AES-256-GCM-encrypted traffic, supporting shell commands, screenshots, webcam capture, and encrypted exfiltration, while PSNATCH collects Office documents, archives, images, and databases from user folders and drives D: through H:. Typosquat domains spoofing ThePrint and India Today staged payloads with Backblaze storage, and persistence used scheduled tasks impersonating OneDrive and Microsoft Edge updates.

GBHackersupdated · 1h agofirst · 2h agoThreat actor in the wild 3 sources

U.S. CISA adds Acronis Backup, Cisco ISE, and Google Pixel flaws to its Known Exploited Vulnerabilities catalog

CISA added actively exploited flaws in Cisco ISE, Acronis Backup, and Google Pixel (CVE-2026-76460, CVE-2026-87886, CVE-2026-58704) to its KEV catalog.

CISA added three actively exploited vulnerabilities to its Known Exploited Vulnerabilities catalog: CVE-2026-76460 (CVSS 10.0), an unauthenticated API authentication bypass in Cisco Identity Services Engine that Cisco confirms is being actively exploited; CVE-2026-87886, a local privilege escalation in the Acronis Backup plugins for cPanel/WHM and Plesk exploited in limited targeted attacks; and CVE-2026-58704 (CVSS 8.8), a Google Pixel cellular modem permission bypass exploited in limited, targeted attacks and patched in the September 2026 Pixel update. Under BOD 22-01, federal agencies must remediate KEV entries by the stated due dates. Google has not attributed the Pixel exploitation to any actor.

Security Affairsupdated · 30m agofirst · 2h agoExploit / PoC in the wild 21 sourcesCVE-2026-76460CVE-2026-87886CVE-2026-58704

Top 10 Best Microsoft Azure Security Tools in 2026

An editorial roundup of the ten best Azure security tools in 2026 names Defender for Cloud the native floor, with Wiz, Orca, and Prisma Cloud leading third-party options.

The brief reviews ten Azure security tools, positioning Microsoft Defender for Cloud's free foundational tier and published per-resource plans as the rational starting point for every Azure estate. Wiz and Orca are shortlisted for agentless attack-path correlation, Prisma Cloud for multicloud breadth, CrowdStrike for runtime protection, and Tenable for CIEM depth with Entra permission analytics. The piece emphasizes Azure's tight identity-infrastructure coupling via Entra ID as both an operational advantage and its most critical risk surface. Scoring is editorial, not lab-tested, with pricing compared by model only.

Cyber Security News · 3h agoIndustry

Chosen Brick, Iran’s Surveillance Malware

UK, US, and Dutch agencies warn Iranian CHOSEN BRICK malware targets dissidents and journalists via Telegram, harvesting contacts, emails, and messages since 2025.

The UK NCSC, FBI, and Dutch AIVD jointly attributed the CHOSEN BRICK Windows malware family to Iranian intelligence services, used since at least 2025 against dissidents, journalists, and activists worldwide, including in the UK, US, and Netherlands. Operators build rapport over WhatsApp or Telegram, impersonating known contacts or platform support, then deliver lures disguised as installers for Pictory, RunwayML, Norton Antivirus, Telegram, Adobe Flash Player, or KeePass, or fake MRI results. The malware persists via registry Run keys, adds Microsoft Defender exclusions, and uses per-victim Telegram bot IDs for C2, with newer versions adding HTTPS or SOCKS5 proxies. Some victims' data appeared on pro-Iranian leak sites, raising harassment and physical-safety risks.

Security Affairs · 4h agoMalware in the wild 7 sources

LinkedIn fights for the right to tell customers when the feds want their data

Microsoft's chief legal officer argues federal subpoenas for LinkedIn user data should carry narrower scope and that secrecy orders must become the exception.

Microsoft chief legal officer Jon Palmer said federal courts and Congress must curb overly broad US government subpoenas for LinkedIn user data that arrive with secrecy orders preventing customer notification. The company is asking courts to enforce meaningful limits on demand scope and secrecy, invoking Fourth and First Amendment arguments. Palmer cited House legislation passed August 31 to rein in secret surveillance, while LinkedIn simultaneously faces user privacy lawsuits, one dismissed with leave to amend by Judge Vince Chhabria.

CSO Online · 15h agoPolicy & legal

VU#369093: MLflow dspy and statsmodels flavors bypass pickle deserialization control

CERT/CC warns MLflow's dspy and statsmodels flavors bypass the MLFLOW_ALLOW_PICKLE_DESERIALIZATION control, enabling remote code execution.

CERT/CC vulnerability note VU#369093 describes a flaw in MLflow 3.12.0 where the dspy flavor conditionally applies the pickle deserialization safety control based only on the model path's .pkl extension, while the statsmodels flavor skips the check entirely, permitting arbitrary code execution via malicious pickle payloads even when users disallow pickle. The statsmodels flavor is patched in versions 3.15.0 and later, but no dspy fix exists yet, so users should avoid loading models through that flavor. Exploitation requires write access to any location from which a user obtains MLflow models.

CERT/CC Vulnerability Notes · 18h agoVulnerability

The sexy AI-powered dating app scams are here

Anthropic exposed a network of roughly 28 AI-driven dating apps using autonomous personas and gig workers to defraud paying users.

Anthropic threat intelligence uncovered a fraud network of around 28 dating apps after a prepaid account sent over 100,000 Claude API requests daily, with most chats run by autonomous AI personas and no human agent. Researchers Matthew Gore-Kormanik and Anthropic's Chris Cronbaugh documented apps including Dora, Romi, and Doni, which monetize conversations via coins; gig workers were hired only to pass liveness checks and select pregenerated replies. An operations manual written in Chinese was found inside the Doni app, and Anthropic published findings in its September 2026 AI misuse report.

The Verge · AI · 21h agoPhishing & fraud in the wild

Normal Alignment: Improved Cryptanalytic Sign Recovery on Hard-Label Networks

Researchers propose Normal Alignment, improving cryptanalytic sign recovery for hard-label neural networks and enabling polynomial-time full model extraction.

The paper improves on Carlini et al.'s EUROCRYPT 2025 cryptanalytic extraction of hard-label (S1) DNNs, whose Future Toggle sign-recovery method offered only marginal advantage over random guessing and triggered exponential-time enumeration on errors. Normal Alignment infers neuron signs via expected length differences between projected normals of adjacent decision facets at dual points, delivering higher voting accuracy and low-confidence errors. Combined with the SOE extension, it achieves exact polynomial-time full sign recovery: CIFAR-10 (192-64x8-10) and MNIST (64-96x3-32-10) models are fully recovered where the prior method required 2^52 or 2^82 sign guesses.

arXiv cs.CR · 21h agoResearch

Flock camera use by internal affairs unit puts DC police at odds with officers’ union

DC's Metropolitan Police Department used Flock license plate cameras to track officers under internal affairs investigation, prompting a union grievance and council scrutiny.

The DC Police Union learned in July 2026 that MPD Internal Affairs used Flock ALPR cameras to monitor officers under investigation without their knowledge, filing a grievance that management denied. Secure Justice found more than 90 US cities and counties ended Flock contracts in August 2026 alone, with over 200 terminations since 2021, while Texas and Florida announced new usage restrictions. On September 14, DC Councilmember Brooke Pinto asked Interim Chief Jeffery Carroll ten questions about the department's use of Flock data.

The Record · 22h agoPolicy & legal

Attacker Hijacks AI Coding Assistant Session, Spreads Shai-Hulud Across About 100 Repositories

Mandiant says an attacker hijacked an AI coding-assistant session at a SaaS provider and spread the Shai-Hulud worm across roughly 100 repositories, stealing secrets.

Mandiant's September 2026 report describes an attacker hijacking an active AI coding-assistant session at an unnamed SaaS provider, then getting a poisoned package recommendation accepted and installing an infostealer via a malicious PyPI package. The attacker stole GitHub OAuth tokens, deployed the self-spreading Shai-Hulud worm across approximately 100 internal repositories, and stole repository secrets and product source code. Poisoning a package in the company's official namespace caused a second employee to pull the compromised version and become infected. Mandiant recommends verifying AI-recommended dependencies against checksums and allowlists, keeping secrets out of extension reach, and routing dependency traffic through internal repositories.

The Hacker News · 22h agoData breach in the wild