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⚡ Weekly Recap: NFC Fraud, Curly COMrades, N
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24 npm Packages Abuse unpkg Mirrors to Host Fake Cloudflare CAPTCHA Pages
OX Security researchers found 24 npm packages abusing unpkg mirrors to host fake Cloudflare CAPTCHA pages that redirect victims to attacker-controlled phishing infrastructure.
OX Security researchers documented 24 npm packages whose single HTML pages, once mirrored on services like unpkg.com, render as fake Cloudflare CAPTCHA pages on trusted domains and redirect victims to attacker-controlled phishing infrastructure for ClickFix attacks or credential harvesting. An earlier version contacted a typosquat Microsoft login domain (login.microsofte.live); after Chrome Safe Browsing blocklisting, the actor switched to the KeyVal key-value store as a dead drop resolver, currently redirecting to the legitimate ChatGPT site. The approach mirrors Socket's October 2025 report on 175 npm packages abusing unpkg.com in the Beamglea campaign.
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GhostCode Abuses Microsoft Entra Device Enrollment to Maintain Access After Token Revocation
eSentire exposes GhostCode, a device-code phishing kit that abuses Microsoft Entra device enrollment to persist even after stolen tokens are revoked.
eSentire's Threat Response Unit observed GhostCode campaigns in late August 2026, using BEC-style social engineering that impersonated procurement staff, including BJ's Wholesale Club, via Salesforce contact forms. Victims received password-protected HTML lures disguised as a FlipBook document portal, with junk-data padding, HTML comment injection, and AES-256-GCM encrypted redirects gated by anti-bot checks. The kit exploits the OAuth 2.0 device authorization grant, prompting victims to approve real Microsoft device-code sign-ins with MFA. Within 78 seconds of approval, attackers registered three Entra devices and obtained a Primary Refresh Token, so rogue device registrations persist even after session token revocation.
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TerminalFix Uses Fake Cloudflare CAPTCHAs to Deploy Reverse
Microsoft details TerminalFix, a ClickFix variant using fake Cloudflare CAPTCHAs to make users run PowerShell payloads with reverse-tunnel implants.
Microsoft disclosed TerminalFix campaigns that direct users to run commands in Windows Terminal or PowerShell instead of the Run dialog, increasing the chance multi-line scripts execute. Compromised websites serve fake Cloudflare CAPTCHA verifications; the resulting PowerShell command downloads a ZIP with legitimate LockScreenContentServer.exe and rogue dui70.dll for DLL sideloading, retrieves payloads hidden in PNG images from attacker domains, persists via Registry Run keys and scheduled tasks, and performs domain trust and Active Directory reconnaissance. A Python-based reverse-tunnel implant (client.py) tunnels arbitrary TCP traffic over an encrypted WebSocket to gitnow[.]dev:443, giving attackers network-level proxy access that could enable privilege escalation, security-tool tampering, data theft or ransomware. Microsoft recommends AppLocker restrictions, PowerShell script block logging and ClickFix awareness training.
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