Threat Feed
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highperson_alertThreat ActorEvilTokens PhaaS disrupted after 12,000 Microsoft account compromise
EvilTokens (tracked by Microsoft as Storm-2992) is a Phishing-as-a-Service (PhaaS) platform that emerged in February 2026. The operation was administered by two suspects, aged 32 and 38, arrested in the U.K.
criticalbug_reportVulnerabilityFake LastPass installer uses Microsoft-signed driver to kill EDR and steal passwords
Windows systems where users downloaded a fake LastPass Authenticator installer from a malicious GitHub repository (github.com/LastPass-Authenticator). The attack uses a Microsoft-signed kernel driver (Alinubx.sys, renamed CcProtect.sys from CnCrypt d…
highperson_alertThreat ActorClickFix Lures Deploy ChainScript RAT via Polygon Blockchain C2
The Blackpoint Adversary Pursuit Group has identified threat actors leveraging ClickFix-style social engineering lures to distribute ChainScript, a previously undocumented remote access trojan.
highbug_reportVulnerabilityBragJack PoC hijacks AI assistants via malicious browser extensions
AI assistants in Google Chrome, Microsoft Edge, Opera Neon, Perplexity Comet, and Anthropic Claude (Chrome). Attack vector: malicious browser extensions using Prompt Forcing technique. Specific affected versions not disclosed.
criticalbug_reportVulnerabilityMicrosoft patches CVSS 10.0 Azure AI Foundry authentication bypass
Azure AI Foundry (Microsoft Foundry) platform. All instances automatically patched by Microsoft. CVE-2026-85889 affects critical function lacking authentication, enabling network-based privilege escalation by unauthenticated attackers.
highbug_reportVulnerabilityWindows 11 Sept 2026 updates break domain login via Machine Identity Isolation
Windows 11 versions 24H2, 25H2, and 26H1 after installing September 2026 security updates (KB5124008, KB5124012). Affects enterprise environments with domain-joined devices NOT connected to Windows Server 2025 domain controllers.
highbug_reportVulnerabilityBrowser extensions can hijack AI agents in Chrome, Edge, Comet, Opera, Claude
Chromium-based browsers with embedded AI assistants: Google Chrome (fixed in v143.0.7499.192, Jan 2026), Microsoft Edge (fixed in v150.0.4078.48, July 2026), Perplexity Comet, Opera Neon, and Claude in Chrome extension.
highperson_alertThreat ActorREF9334 Deploys KREMLIN Malware Targeting Brazilian Financial Sector
REF9334 is a Brazilian threat actor tracked by Elastic Security Labs, active since at least May 2025. The actor specializes in banking fraud operations targeting Brazilian financial institutions through sophisticated malware delivery campaigns.
highperson_alertThreat ActorUTA0560 Exploits Chrome-Windows Zero-Day Chain to Deploy GRIMWEDGE
UTA0560 is a Chinese-linked threat actor tracked by Volexity that conducts cyber espionage operations targeting non-governmental organizations. The actor demonstrates sophisticated capabilities in exploiting zero-day vulnerabilities and conducting sp…
highbug_reportVulnerabilityMicrosoft releases emergency patches for RDS failures after September updates
Windows 10 21H2/22H2, Windows 11 24H2/25H2/26H1, Windows Server 2019/2022/2025. Remote Desktop Services, Hyper-V (HCS-managed VMs with Plan9 shares), and USB Audio Class 1.0 devices with multichannel audio affected by September 2026 security updates.
highbug_reportVulnerabilityMicrosoft September 2026 updates break RDS on Windows Server and clients
Windows Server 2012, 2012 R2, 2016, 2019, 2022, 2025, and Windows 10/11 all versions that applied September 2026 Patch Tuesday updates. Impacts Remote Desktop Services (RDS), RDP connections, MMC, RDS Licensing Diagnoser, and File Explorer.
highbug_reportVulnerabilityMicrosoft warns of passkey phishing and CEO fraud campaigns targeting cloud
Microsoft cloud environments (Azure AD/Entra ID, Microsoft 365, SharePoint, OneDrive). Campaign 1: U.S. enterprise users in IT services, consumer goods, real estate, and manufacturing (August 2026).
highperson_alertThreat ActorShinyHunters and Helix Linked to Passkey-Themed M365 Phishing Campaign
ShinyHunters and Helix are cybercrime actors linked to data extortion operations. Both groups have established reputations in the underground economy for compromising corporate environments and exfiltrating sensitive data for extortion or sale.
highbug_reportVulnerabilityAI-enhanced BEC campaign targets finance teams with CEO impersonation
Over 1 million emails sent August 3-5 targeting enterprise finance/accounts payable departments, primarily in United States (87.7%). Campaign used third-party email delivery infrastructure to impersonate C-level executives (CEO, CFO, President) with…
criticalbug_reportVulnerabilityBlueMoon exploit kit chains Windows and Chrome zero-days in espionage ops
Microsoft Windows (CVE-2026-85880: heap-based buffer overflow in ALPC, older builds targeted); Google Chrome and Chromium-based browsers (CVE-2026-85046: V8 type confusion; CVE-2026-87491: V8 sandbox escape).
highbug_reportVulnerabilityPasskey-themed phishing campaign targets cloud identities via AiTM
Microsoft 365 / Entra ID users across multiple organizations. Campaign active since May 2024 (likely typo in source stating "May 2026"). Targets include SharePoint, OneDrive, Exchange, and Microsoft Graph API access.
highperson_alertThreat ActorAPT31 Deploys BlueMoon Exploit Kit Chaining Chrome and Windows Zero-Days
APT31 (also tracked as Bronze Vinewood, Judgement Panda, JungleBamboo, PerplexedGoblin, RedBravo, TA412, Tide Castle, Violet Typhoon, and ZIRCONIUM) is a China-aligned state-sponsored threat actor conducting espionage operations.
criticalbug_reportVulnerabilityMicrosoft Sept 2026 Patch Tuesday: 964 CVEs, 2 zero-days under attack
Microsoft products across the ecosystem. 964 vulnerabilities total: 104 critical, 860 important. Two zero-day vulnerabilities are actively exploited in the wild.
criticalbug_reportVulnerabilityMicrosoft Defender zero-day "ShieldCrash" bypasses September patch
Microsoft Defender on all supported Windows 10, Windows 11, and Windows Server versions with September 2026 Patch Tuesday updates applied. The vulnerability is an incomplete fix for CVE-2026-69414 (ShieldBreak), allowing arbitrary file read as SYSTEM…
highbug_reportVulnerabilityMicrosoft patches 974 vulnerabilities, including 2 actively exploited zero-days
Microsoft Windows (all supported versions), Windows Server 2012 and later, and other Microsoft software products. Two actively exploited zero-days: CVE-2026-81963 and CVE-2026-85880 (privilege escalation).
criticalbug_reportVulnerabilityMicrosoft patches 966 flaws including 2 actively exploited zero-days
Microsoft products (specific products and versions not disclosed in provided data). Two zero-day vulnerabilities are actively exploited; 964 additional flaws patched in September 2026 Patch Tuesday.
highbug_reportVulnerabilityPEEP toolkit turns Chrome/Edge into backdoors via malicious extension
Chrome and Edge browsers on Windows and Linux. PEEP is a post-exploitation toolkit requiring prior administrative or code execution access. It masquerades as "Smart Bookmarks" extension (ID: ejkndncpkdcjcikfhiamcdehdoegilbj) and uses native messaging…
highbug_reportVulnerabilityVishing campaign steals M365 tokens via AitM phishing, targets executives
Microsoft 365, SharePoint, OneDrive, Exchange, and Box SaaS platforms. Primarily targets executive-level staff (directors, VPs) in U.S. organizations across construction, engineering, healthcare, pharmaceuticals, real estate, finance, and professiona…
highbug_reportVulnerabilityBigBear 2.0 PhaaS bypasses MFA, steals 5,000+ Microsoft 365 credentials
Microsoft 365 users across 258 organizations in 40+ countries. All authentication methods except FIDO2/WebAuthn hardware tokens are vulnerable. Campaign leverages Evilginx2-based adversary-in-the-middle (AiTM) framework with geo-matched residential p…
highbug_reportVulnerabilityREVSTEALER Deploys Four Persistent Modules Including Crypto Miner
Windows systems infected with REVSTEALER infostealer (active since February 2026). Four persistent modules (ProManager, WinUpdate, SoftManager, LockAppHost) remain after core stealer self-deletes.
highbug_reportVulnerabilityPhishing campaign uses invisible Unicode to bypass email filters
Organizations using email security systems that rely on keyword matching and literal string detection. Campaign targets Small Business Administration (SBA) loan applicants and businesses seeking financing.
highbug_reportVulnerabilityBraZetsu malware framework enables Initial Access Broker marketplace
Windows systems in Iberian Peninsula and Latin America, particularly Brazil. Targeted sectors include e-commerce, corporate, financial, industrial, and law enforcement. Browsers affected: Google Chrome, Microsoft Edge, Brave, Vivaldi, Opera.
highbug_reportVulnerabilityAttackers abuse Microsoft Teams external chat to impersonate IT support
Microsoft Teams users in enterprise environments with external collaboration enabled. All organizations using Teams for business communication are at risk if users accept external contact requests and grant remote access via RMM tools or Quick Assist…
highbug_reportVulnerabilitySilver Fox campaign uses fake installers to disable Windows Update
Windows systems globally, primarily China-based operations of multinational organizations and Chinese-speaking users across healthcare, manufacturing, gaming, technology, logistics, government, and education sectors.
highbug_reportVulnerabilityActive malware campaign uses fake vendor sites to deliver Silver Fox malware
Organizations with China-based operations and Chinese-speaking users across healthcare, manufacturing, gaming, technology, logistics, government, and education sectors.