The article describes anti-analysis techniques found in certain Android malware samples designed to crash the AndroGuard APK analysis tool or its Python zipfile dependency, similar to anti-debugging tricks used by PC malware against tools like OllyDbg and IDA Pro. Techniques include crafting malformed 'linksize'/'linkoff' padding values that trigger unpack() failures due to 4-byte alignment issues in zipfile.py, and manipulating AndroGuard's search_methods() return values to conceal malicious behaviors like audio recording. The AndroGuard project addressed the zipfile parsing issue in a December 2012 patch.
anti-analysis
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Hey AndroGuard, I Will Crash Your Python Buddy! | Zscaler New North Korean campaign uses fake coding interviews to steal developer credentials Elastic Security Labs discovered a new Contagious Interview campaign (REF9403) attributed to DPRK-aligned threat actors that uses fake coding challenges to deliver malware hidden via SVG steganography. The trojanized repositories contain a four-stage JavaScript payload aligned with OTTERCOOKIE, combining browser credential/crypto wallet theft, file exfiltration, a Socket.IO RAT, and clipboard stealing. The malware uses obfuscator.io for code protection, custom Base64 decoding to evade detection, and masquerades as npm-cache processes while exfiltrating data to rightwidth.dev C2 infrastructure.
GuLoader Malware Obfuscation Techniques Analyzed GuLoader is a highly obfuscated malware-as-a-service downloader that has evolved since 2019 to deliver secondary payloads such as RATs and information stealers. It employs polymorphic code for dynamic constant construction, exception-based control flow obfuscation using five distinct CPU exception types, encrypted strings with stack-based decryption, and modified DJB2 API hashing. Payloads are hosted on trusted cloud platforms (Google Drive, OneDrive) to evade reputation-based detection, and the malware continues to receive updates increasing analysis complexity.
The tale of ClickFix: 5 takeaways from RL’s new threat report ClickFix is a social engineering technique that uses fake CAPTCHA pages to trick users into pasting malicious commands into Run dialogs or terminals, executing payloads in memory via LOLBins without triggering traditional AV or EDR signatures. The threat has commoditized through MaaS subscriptions ($250–$1,800), expanded its payload catalog beyond infostealers to include RATs, loaders, and rootkits, and is actively evolving with variants like CrashFix, FileFix, PromptFix, and ConsentFix. ReversingLabs released an open-source multi-condition YARA rule that detects ClickFix lures by correlating fake verification characteristics, PowerShell payload indicators, and clipboard manipulation before payload execution.
The TTF Trap: A Global Campaign of a Low-Detection Lua Loader A global phishing campaign active since late March 2026 deploys heavily obfuscated JScript droppers that launch LuaJIT or AutoIt-based loaders disguised as TrueType Font (.ttf) files to deliver multiple RATs and infostealers including Agent Tesla, Remcos, XWorm, and a Snake Keylogger variant dubbed Best Private LOGGER. The Lua loader leverages LuaJIT's Foreign Function Interface to call native Windows APIs for in-memory shellcode execution, employing advanced evasion techniques such as decoy memory allocation, Donut header patching, AMSI/ETW bypass, API unhooking, and VEH-based segmented shellcode decryption. The campaign has evolved from October 2025 through June 2026 with progressively more sophisticated anti-analysis capabilities.
TELEPUZ: a modular MaaS malware spreading via CLICKFIX-VIDAR chains TELEPUZ is a rapidly evolving modular MaaS malware delivered via ClickFix social engineering and VIDAR second-stage downloader chains. The 64-bit Windows DLL payload uses indirect syscalls, NTDLL unhooking, AMSI/ETW patching, and custom RC4 encryption for defense evasion, while establishing persistence as a Windows service and communicating over WebSockets with fallback C2 resolution via Telegram, Steam, DNS records, and Polygon blockchain smart contracts. The malware supports 36 commands including process hollowing, keylogging, credential theft, browser cookie extraction, and a WebInjector module that abuses Chrome DevTools Protocol to manipulate financial web forms in real-time.
Daxin Returns: Stealthy Malware Resurfaces in Taiwan Alongside a New Backdoor Symantec identified renewed activity of Backdoor.Daxin, a sophisticated China-linked kernel-mode rootkit that hijacks legitimate TCP connections for covert C2, on a Taiwan manufacturing subsidiary in May 2026, four years after its initial public disclosure. Alongside it, researchers discovered a new backdoor, Stupig, which abuses the Windows keyboard-layout provider mechanism to execute SYSTEM-level commands from the logon screen pre-authentication and hook credential-handling APIs within winlogon.exe. Compile timestamps on both tools date to 2013 despite the host having no telemetry until 2026, suggesting a potentially decade-plus dwell time enabled by likely initial access via an outdated, end-of-life Digiwin SSO/JDK deployment.
Case Study: Distribution of a CoinMiner Targeting Linux SSH Servers via Malware Distribution via Network Transmission ASEC identified a multi-component Linux malware campaign targeting poorly managed SSH servers. The attack chain uses Go-based propagation malware to worm-like spread XMRig CoinMiner across SSH-accessible servers. The XMRig variant implements robust persistence via systemd services, cron jobs, and a /dev/shm watchdog, while XHide and Shc-compiled obfuscation scripts disguise mining activity by spoofing process names and hijacking common administrative commands through .bashrc aliases.
Kratos PhaaS Targets US and EU: How to Reduce Microsoft 365 Account Takeover Risk Kratos is a mature Phishing-as-a-Service operation impersonating Microsoft 365 login pages to steal credentials across US and European organizations. The kit uses legitimate platforms (SharePoint, Canva, Tilda) as intermediary redirect pages, Cloudflare Turnstile to block automated analysis, and PHP endpoints for credential exfiltration. Researchers identified three generations (V0, V1, V2) with distinct asset fingerprints and exfiltration code, and uncovered the operator panel with automated deployment, Telegram-based data delivery, and geographic restriction capabilities.
Malicious GitHub Campaign: Fake “Arctic Wolf” and 290+ Brand-Impersonation Repositories Deliver BoryptGrab-Lineage Infostealer An unattributed, financially motivated threat actor has operated at least 292 brand-impersonation GitHub repositories since 26 June 2026 to distribute a BoryptGrab-lineage Windows infostealer. The delivery chain abuses GitHub trust by routing users through *.github.io redirectors to actor-controlled download pages that serve ZIP archives containing a legitimate signed WinGUP updater (gup.exe) that side-loads a trojanized libcurl.dll, which reflectively executes an 11-module in-memory stealer. The stealer bypasses Chrome App-Bound Encryption v20 via in-process reflective DLL injection into the browser process, scans Steam process memory for live session tokens, harvests credentials from 19+ browsers and 41 cryptocurrency wallet paths, and exfiltrates all data via raw-socket chunked POST to a hardcoded C2 at 193.143.1.131 in Russia.
jscrambler npm Package Compromised in Supply Chain Attack A compromised release of the jscrambler npm package (versions 8.14.0 through 8.20.0) delivered a Rust-built cross-platform infostealer via hidden native binaries embedded in an obfuscated CSI container. The malware executes automatically during npm install via a preinstall hook or, in later versions, through injected self-executing functions in package entry points, evading --ignore-scripts protections. The infostealer broadly harvests developer credentials including cryptocurrency wallets, AI assistant API keys, cloud provider credentials, browser data, and messaging app tokens, exfiltrating them over TLS via rustls.
GigaWiper: Anatomy of a destructive backdoor assembled from multiple malware GigaWiper is a sophisticated Golang-based backdoor discovered by Microsoft Threat Intelligence in October 2025 that amalgamates at least three previously separate malware families — a standalone disk wiper, Crucio ransomware, and FlockWiper — into a single modular implant with 20 commands. It uses RabbitMQ and Redis for C2 communication, establishes persistence via scheduled tasks, and offers capabilities including disk wiping, fake ransomware (with unrecoverable encryption), BSOD induction, screen recording, keylogging, registry management, event log clearing, and VNC-like remote control. The malware masquerades as legitimate Windows components (OneDrive Update, CloudExperienceHost) and uses AES-encrypted configurations with hard-coded credentials.
US Threat Landscape Alert: 30 Active Malware Families Ranked by Real Sandbox Data ANY.RUN's Malware Trends Tracker data shows that phishing-as-a-service kits now dominate the US threat landscape, with five of the top ten threats being AiTM or device-code phishing platforms that defeat MFA by stealing session cookies or OAuth tokens. Commodity RATs and info stealers remain in constant high-volume circulation, while legacy threats like Emotet and WannaCry persist on unpatched systems. Several top-ranked threats (Cobalt Strike, Qbot, Emotet, DonutLoader, Smoke Loader) function as ransomware precursors, meaning their detection should trigger urgent escalation rather than routine handling.
Malicious Go Module Exposes GitHub Malware Lure Network Spanning 222 Repositories Operation Muck and Load is a supply chain attack campaign centered on a malicious Go module that impersonates a DNS scanner tool to deliver a multi-stage Windows malware loader. The campaign leverages 222 GitHub lure repositories across 190 accounts with automated commit-farming workflows to create false credibility, and uses public dead-drop resolvers across multiple platforms for resilient payload-location resolution. The final payload chain delivers AsyncRAT, Quasar, Remcos, Vidar infostealer, and cryptominers through password-protected 7z archives extracted into masqueraded Microsoft-themed directories.
Files Locked Behind a White Padlock: A Warning from WhiteLock Ransomware WhiteLock is a Windows ransomware that encrypts user files using AES-CBC symmetric encryption with RSA-2048 asymmetric key protection, appending the .Fbin extension to encrypted files. It identifies infected devices via SHA-256 hashed MAC addresses, communicates with external servers for key exchange, and deliberately terminates AnyDesk and TeamViewer services to impede remote incident response. The ransomware has been observed in campaigns where information theft malware is used for initial access prior to ransomware deployment.
Banana RAT Evolves: Comparing Two Recent Branches Through ANY.RUN An exposed public index on 198.245.53.26 revealed two evolutionary branches of Banana RAT, a Brazilian banking-oriented RAT. The older branch (May 2026) used static ETW-themed installation paths and a pseudo-Microsoft C2 domain (c.windowns-cdn.com), while the newer branch (June 2026) shifted to randomized install identifiers, VBS-assisted persistence via hidden SYSTEM scheduled tasks, and WebSocket C2 over host-specific testewin.com subdomains derived from the victim's MachineGuid. Exposed backend scripts (servidorcompletopool.py, ofuscador.py) indicate an automated polymorphic payload generation platform. A shared fallback IP (149.56.12.51) anchors both branches to the same operator.
From Phishing to Persistence: A CrySome RAT Infection Chain Analysis A structured, multi-stage infection chain delivers the CrySome RAT via a logistics-themed spear-phishing lure. Initial access is achieved through a fake rate confirmation portal that drops a batch file, which chains UAC bypass (ICMLuaUtil COM interface), in-memory AMSI patching, and the open-source WinDefCtl utility to weaken Microsoft Defender before deploying the persistent RAT payload. CrySome RAT provides the operator with remote command execution, credential theft from Chromium browsers, HVNC, keylogging, and persistence via a scheduled task executing every 5 minutes.
Novel Java-Based QuimaRAT Targets Windows, macOS, and Linux QuimaRAT is a cross-platform, Java-based remote access trojan sold as a malware-as-a-service subscription on the dark web. It targets Windows, macOS, and Linux systems by embedding JNA native libraries for multiple architectures within a JAR archive built for Java SE 8. The RAT decrypts an internal configuration file using repeating-key XOR, performs anti-analysis and virtualization checks, establishes persistence via OS-specific mechanisms, and maintains resilient C2 communication through HANDSHAKE and HEARTBEAT protocols. With 23 implemented commands and 212 protocol-only commands, the platform is highly extensible through runtime modules and fileless payloads.
An Analysis of ValleyRAT Infection Campaigns from Fake Installers, Japanese Malicious Emails LevelBlue GSOC has identified accelerating ValleyRAT campaigns delivered through fake installers and malicious emails targeting Chinese and Japanese-speaking users. The email-based attack chain uses DLL sideloading via a legitimate VLC executable to load a malicious DLL that downloads an RC4-encrypted, Donut-generated ValleyRAT payload, which is then injected into a suspended rundll32.exe process for fileless execution. The malware incorporates extensive anti-analysis checks (memory size, sleep timing, CPU count, VHD boot detection) and establishes persistence via registry Run keys.
Don't Fear the Repo: UNK_DeadDrop Phishing Campaign Targets Developers to Steal Cryptocurrency UNK_DeadDrop is a likely North Korean threat actor conducting broad phishing campaigns targeting software developers with fake job offers and code review requests. The campaign delivers malicious GitHub/GitLab repositories that abuse VS Code and Cursor IDE task automation to silently execute cross-platform malware. Linux and macOS systems receive the Overlord Go RAT with custom credential and wallet theft modules, while Windows runs a fileless Node.js/Python pipeline inside the editor's Electron process. The malware exfiltrates cryptocurrency wallets, browser credentials, and OS keychain data to a hardcoded C&C server at 23.137.105.75:5173.
Sayonara, SocGholish: Operation Endgame Disrupts Major Cybercrime Operation Operation Endgame, a coordinated law enforcement action by Netherlands, Canada, US, and Germany, disrupted TA569's SocGholish web inject infrastructure by taking down over 100 servers and remediating 14,971 compromised websites. TA569 compromises legitimate websites—often WordPress installations—to inject obfuscated JavaScript that presents fake browser update pages to visitors, ultimately delivering GhoLoader malware which can lead to ransomware deployments. The attack chain leverages traffic direction systems (TA2726's Keitaro TDS and ParrotTDS) for victim filtering and uses advanced client-side blob URL construction to evade sandbox detection and network-based download tracing.
Analysis of Ongoing Ousaban Attacks Targeting the Iberian Peninsula FortiGuard Labs identified an ongoing Ousaban banking Trojan campaign targeting users in Spain and Portugal, delivered via phishing PDFs that redirect victims to geofenced malicious webpages. The attack chain involves a VBS script extracting a ZIP payload from a steganographic image, with the final Ousaban EXE establishing persistence via registry Run keys and communicating with C2 servers resolved through daily-changing DDNS hostnames. The malware targets over 25 Spanish and Portuguese financial institutions and employs a custom encryption algorithm shared with the Casbaneiro family to evade detection.
- 8 minWeekly Recap — 2026-06-29 -> 2026-07-06
Token Theft and AI Poisoning Redefine the Perimeter Attackers are shifting from breaking passwords to stealing active login sessions, bypassing multi-factor authentication entirely. This week, ARToken and ConsentFix exploited Microsoft 365 OAuth flows to hijack accounts, while Anubis ransomware used the ongoing CitrixBleed 2 vulnerability to steal session tokens from network gateways. Even a standard user can become a Global Administrator in minutes if identity settings are loose, as demonstrated by a recent M365 privilege escalation analysis. Simultaneously, artificial intelligence systems have evolved from helper tools to critical vulnerabilities, serving as both the weapon and the target. Threat actors are using AI to generate malware like InfernoGrabber v9.0 and BusySnake Stealer, while also poisoning AI agent ecosystems with malicious skills like OpenClaw and tricking AI models into executing financial fraud via indirect prompt injection. The AI arms race has accelerated breakout times to under 30 minutes, with state-sponsored groups like GTG-1002 now orchestrating entire espionage campaigns via AI. Defenders must immediately audit identity and session controls, treating session tokens as highly sensitive credentials. Security teams should also implement guardrails for AI agents, verifying external URLs and restricting autonomous financial or code execution actions.
ARToken: Inside an EvilTokens affiliate panel targeting Microsoft 365 Cisco Talos identified ARToken, a phishing-as-a-service platform linked to EvilTokens, that abuses Microsoft's OAuth 2.0 Device Authorization Grant to bypass MFA and capture victim tokens. The platform provides affiliates with a comprehensive post-compromise toolkit including PRT-based persistence surviving password resets, BEC email operations, inbox rule manipulation, and SharePoint exfiltration. ARToken deploys a sophisticated seven-layer client-side anti-analysis system and abuses legitimate sharepoint.com URLs from attacker-controlled Microsoft 365 workspaces to evade security scanners.
CL-STA-1062 Targets Southeast Asian Governments and Critical Infrastructure CL-STA-1062, a Chinese-speaking threat cluster assessed to be the same as UAT-7237, has compromised Southeast Asian government and critical energy infrastructure entities throughout 2025 using web shell deployment, MSSQL data exfiltration, and open-source tunneling tools (SoftEther VPN, VNT, yuze). The group has introduced TinyRCT, a previously undocumented .NET backdoor delivered via AppDomainManager Injection (malicious chrome_setup.zip), which uses AES-CBC encrypted HTTP C2, sandbox-evasion path checks, scheduled-task persistence disguised as legitimate updater services, and a self-destruct routine using choice.exe for anti-forensic file deletion.
STOCKSTAY Another Day: The Latest Addition to Turla’s Intelligence Gathering Apparatus Google Threat Intelligence Group analyzed STOCKSTAY, a modular .NET backdoor developed and operated by Turla since late 2022, which uses a WebSocket-based C2 channel, RSA/AES encrypted communications, and IPC via WM_COPYDATA between its downloader, orchestrator, tunneler, and backdoor components. STOCKSTAY exhibits strong code, architectural, and obfuscation (K1MORPHER) overlaps with KAZUAR, suggesting a shared development team, and has been deployed via phishing (malicious RDP files, HTA lures) and, most recently, exploitation of CVE-2025-8088 in WinRAR to target Ukrainian military personnel. The actor leverages legitimate hosting platforms (Render, Glitch, GitHub) and compromised third-party/government infrastructure to obscure C2 infrastructure and complicate attribution.
ToddyCat: your hidden email assistant. Part 2 ToddyCat APT developed a tool called Umbrij that automates the theft of Google OAuth authorization codes by launching Chromium-based browsers in headless mode with remote debugging ports enabled. The tool copies the victim's browser profile to a backup directory, launches the browser invisibly with the stolen session, and uses Puppeteer Sharp to automate the Google OAuth consent flow using legitimate Google Workspace Migration/Sync client IDs. The resulting authorization code is exfiltrated and exchanged for an access token, enabling API-level access to the victim's Gmail, Drive, Calendar, and Contacts without traditional credential theft.
StrikeShark: investigating a new campaign delivering Cobalt Strike through SharkLoader The StrikeShark campaign utilizes a novel malware family named SharkLoader to deploy Cobalt Strike Beacons across various global sectors. Threat actors gain initial access by exploiting known vulnerabilities in public-facing applications or distributing custom droppers disguised as legitimate software. SharkLoader employs advanced evasion techniques, including Perfect DLL Hijacking and extensive API hooking, to bypass loader locks and conceal its execution in memory.
OpenClaw’s Skill Marketplace and the Emerging AI Supply Chain Threat Threat actors are exploiting the OpenClaw AI agent ecosystem by publishing malicious skills on the ClawHub marketplace. These skills leverage semantic instruction hijacking to bypass traditional security controls, delivering macOS infostealers via base64-encoded droppers, utilizing massive file padding for defense evasion, and executing novel agentic financial fraud schemes like runtime affiliate injection and front-running.
macOS.Gaslight | Rust Backdoor Turns Prompt Injection on the Analyst, Not the Sandbox SentinelLABS identified macOS.Gaslight, a DPRK-aligned Rust backdoor targeting macOS systems. The implant establishes a resilient C2 channel via the Telegram Bot API using AES-GCM over pinned TLS and achieves persistence via a masqueraded LaunchAgent. Notably, it embeds a 38-message prompt-injection payload designed to feed fabricated system errors to LLM-assisted triage tools, aiming to abort or corrupt automated analysis. The malware also stages a standalone Python environment to execute a credential and data stealer.
EvilTokens: How “Ghost” Code Threatens US and European Businesses The EvilTokens phishing kit utilizes browser-side AES-GCM decryption to conceal its malicious payload from static analysis tools. By abusing the Microsoft Device Code authentication flow, the kit tricks victims into authorizing attacker access to their Microsoft 365 accounts without directly harvesting credentials, creating a significant visibility gap for SOC teams.
Edgecution: Malicious Edge Extension Backdoor | ThreatLabz ThreatLabz identified a new attack campaign deploying 'Edgecution,' a malicious Microsoft Edge browser extension used by an initial access broker affiliated with Payouts King ransomware. The malware abuses the Chrome native messaging protocol to bridge a headless browser extension with a Python-based backdoor, enabling arbitrary code execution and filesystem access while evading traditional browser sandboxes.
- 12 minWeekly Recap — 2026-06-15 -> 2026-06-22
Trust Chains Broken at Scale While ClickFix Becomes a Service This week, attackers stopped trying to kick down the front door and instead walked in through the trust chains that hold digital ecosystems together. North Korea's Sapphire Sleet compromised over 140 Mastra npm packages through a single typosquatted dependency, stealing cryptocurrency wallets and planting persistent backdoors on developer machines. The GlassWorm group trojanized Open VSX extensions with WebAssembly malware that uses the Solana blockchain as an unkillable command channel, while SmartApeSG hijacked the Okendo Reviews widget to serve malicious prompts on thousands of e-commerce sites. Even vendor integrations became a liability: the Klue breach exposed Recorded Future client data through a compromised OAuth token connecting a marketing tool to Salesforce. Deception also became an industrial product. The ErrTraffic framework now operates as full Malware-as-a-Service, using blockchain smart contracts to hide its infrastructure and compromised WordPress sites to serve fake error prompts that trick users into running malicious commands. Attackers weaponized trusted AI platforms too—one campaign abused claude.ai's shared chat feature to deliver MacSync infostealer on macOS, while the shai_hulululud npm package uses prompt injection to blind AI-powered security scanners. On the infrastructure side, the FortiBleed campaign cracked credentials for over 73,000 FortiGate firewalls with a 45-GPU cluster, handing attackers valid keys to government and defense networks worldwide. Defenders should immediately hunt for the easy-day-js dependency in their npm projects, reset credentials on any FortiGate firewall, enable Azure AD Graph Activity Logs to close a years-long reconnaissance visibility gap in Microsoft cloud environments, and audit OAuth tokens on all third-party vendor integrations.
Killing me gently: Inside Gentlemen’s EDR killer framework ESET researchers analyzed the Gentlemen ransomware-as-a-service (RaaS) operation, highlighting their unique approach of providing an in-house developed EDR killer framework, GentleKiller, directly to affiliates. The framework leverages Bring Your Own Vulnerable Driver (BYOVD) techniques to terminate over 400 security processes and is augmented by third-party tools like HexKiller and HavocKiller, all standardized with a shared defense-evasion layer.
Lost in relocation: analysis of a new loader distributing CASTLESTEALER A newly discovered Windows loader, OXLOADER, is being distributed via malicious Google Ads impersonating Node.js to deliver the CASTLESTEALER infostealer. The loader utilizes advanced evasion techniques, including control-flow flattening, anti-sandbox checks, and staging shellcode within the .reloc section of a copied system DLL, to maintain low detection rates across static engines.
World Cup-Themed Phishing Campaign Delivers Voidrift Malware with Highly Personalized Lures A sophisticated phishing campaign is leveraging highly personalized FIFA World Cup 2026 lures to deliver the evasive Voidrift malware. The attackers utilize extensive reconnaissance to embed target company logos into the email lures and host payloads on legitimate domains, successfully bypassing multiple prominent Secure Email Gateways.
AI Generated ClickFix Attack Delivers SmartRAT | ThreatLabz ThreatLabz identified a ClickFix campaign utilizing AI-generated typosquatting domains to impersonate Brazilian banks and deliver a PowerShell-based banking RAT dubbed SmartRAT. The malware establishes persistence via scheduled tasks or Windows services, communicates over a custom TCP protocol on port 51888, and features advanced capabilities including keylogging, fake banking overlays, and QR code interception for financial fraud.
Threat Actors Abuse claude.ai Shared Chat for ClickFix Malvertising Campaign A sophisticated malvertising campaign abused Google Ads to deliver ClickFix social engineering attacks disguised as popular AI developer tools and Mac utilities. The threat actors initially leveraged GitLab Pages before pivoting to weaponize claude.ai's shared chat feature, tricking macOS users into executing terminal commands that deploy the MacSync infostealer.
140+ Mastra npm Packages Compromised in Coordinated Supply Chain Attack A coordinated supply chain attack compromised over 140 npm packages in the Mastra namespace by injecting a typosquatted dependency, easy-day-js. This dependency uses a postinstall hook to execute a cross-platform Node.js infostealer that establishes persistence, inventories cryptocurrency wallets, steals browser history, and enables arbitrary remote code execution via a custom ICAP-style C2 protocol.
FishMonger’s arsenal upgraded: SprySOCKS for Windows ESET researchers discovered two undocumented Windows variants of the SprySOCKS backdoor, WINDRV and WINPLUS, attributed to the China-aligned FishMonger APT. These variants utilize advanced stealth techniques, including a custom kernel driver for hiding artifacts and diverting TCP traffic, as well as print processor abuse for persistence.
npm Package Uses Prompt Injection and Token Flooding to Disrupt AI Malware Scanners An npm package named shai_hulululud was discovered utilizing adversarial techniques to disrupt AI-assisted malware scanners. The package employs prompt injection, safety-triggering content, and context flooding via millions of tokens to cause LLM-based analysis tools to fail, truncate, or refuse processing before reaching the obfuscated JavaScript payload.
What Is the BabaDeda Loader? Analysis of a New ClickFix Malware Campaign Morphisec researchers identified a significantly evolved version of the BabaDeda loader targeting the education and financial sectors. The campaign leverages ClickFix social engineering to trick users into executing PowerShell commands, leading to a complex, multi-stage infection chain involving DLL sideloading, in-memory execution, and external payload storage to deliver DanaBot and SectopRAT.
Public and Private Medical Community Targeted by China-Nexus Threat Actor Pursuing Artificial Intelligence, Cyber, Medical, and National Defense Research Google Threat Intelligence Group identified a PRC-nexus espionage campaign by UNC6508 targeting North American research and defense entities. The actors compromised REDCap servers to deploy INFINITERED, a custom malware that harvests credentials and intercepts software upgrades for persistence. Using stolen credentials, the attackers pivoted to administrative accounts and abused email content compliance rules to covertly exfiltrate sensitive intelligence.
- 7 minWeekly Recap — 2026-06-08 -> 2026-06-15
Perimeter Auth Collapse and AI-Driven Deception Shift the Battlefield The security perimeter cracked open this week as critical authentication bypasses in Check Point VPNs, Ivanti Sentry, and Palo Alto GlobalProtect gave attackers a free pass into corporate networks, with Qilin ransomware already exploiting one to launch real attacks. At the same time, AI became the year's most versatile weapon: criminals used ChatGPT and Claude brands as phishing lures, researchers proved AI email assistants will hand over corporate secrets to impersonators, and the Shai-Hulud campaign began injecting fake prompts to blind AI-powered security scanners. Patch edge VPN appliances immediately, treat AI agents as high-risk insiders, and hunt for device-code authentication events that bypass normal credential checks.
Trust No Skill: Integrity Verification for AI Agent Supply Chains The article introduces Behavioral Integrity Verification (BIV) to audit third-party skills for AI agents by comparing declared metadata against actual executable code and natural-language instructions. Analysis of the OpenClaw registry found that while most deviations are benign documentation errors, a critical 5% of skills contain multi-stage attack chains such as silent credential exfiltration and instruction-override hijacking.
Technical Analysis of MLTBackdoor | ThreatLabz ThreatLabz has identified MLTBackdoor, a highly obfuscated post-exploitation framework delivered via ClickFix social engineering lures. The malware utilizes Mixed Boolean-Arithmetic (MBA), Control Flow Flattening (CFF), and indirect system calls to evade detection, while maintaining persistence and control through a custom encrypted protocol, a Domain Generation Algorithm (DGA), and a Beacon Object File (BOF) loader.
Mini Shai-Hulud, Miasma, and Hades Worms Target Bioinformatics and MCP Developers via Malicious PyPI Wheels A fast-moving supply chain campaign dubbed Mini Shai-Hulud/Miasma is targeting Python developers via malicious PyPI wheels. The threat actors are utilizing novel execution techniques, including trojanized native extensions and split-loader .pth hooks that search sys.path for payloads, to deploy the Hades stealer and harvest credentials from CI/CD pipelines and developer workstations.
It’s In Your AI Assistant Now: Shai-Hulud Wave 3 and the Miasma Worm Targeting npm The third wave of the Shai-Hulud supply chain worm, dubbed Miasma, targets the npm ecosystem by utilizing weaponized binding.gyp files to bypass lifecycle script monitoring. It establishes deep persistence within AI assistant and IDE configuration directories, evades detection through dormancy and EDR checks, and abuses valid Sigstore attestations to masquerade as legitimate packages.
Shai-Hulud Descends to Hades: Miasma Worm Campaign Spreads with New PyPI Wave A coordinated supply chain attack compromised 19 PyPI packages, utilizing malicious .pth files to achieve execution at Python startup. The loader downloads the Bun runtime to execute an obfuscated JavaScript stealer targeting developer secrets, cloud credentials, and CI/CD tokens, exfiltrating data via GitHub repositories and Actions.
VerdantBamboo: Just Another BRICKSTORM in the Firewall VerdantBamboo, a Chinese threat actor, compromised edge appliances including Egnyte Storage Sync, pfSense firewalls, and Synology NAS devices to deploy custom malware (BRICKSTORM, PLENET, AGENTPSD). The attackers exploited a compromised MSP and local privilege escalation misconfigurations to maintain long-term persistence, using the compromised devices to proxy traffic and bypass Microsoft 365 Conditional Access policies.
