The ClickFix campaign is a malware operation that has evolved from simple disk-based infections to advanced, obfuscated attacks using fake CAPTCHA pages to trick victims into running malicious PowerShell commands. Early variants used cleartext commands to download batch scripts deploying DeerStealer InfoStealer. Later versions employ fileless execution with XOR encryption or Base64 compression, running entirely in memory. The most advanced stage uses server-side polymorphism to dynamically generate unique obfuscated payloads per victim, delivering Vidar InfoStealer. The campaign has been active since March 2026, with increased activity through May, leveraging approximately 4,500 live domains. It uses techniques to evade forensic detection by deleting traces after execution.
A Shai-Hulud copycat worm has infected the npm package chalk-tempalte, appearing just five days after the original worm was open-sourced by its creators. The same threat actor also published three additional malicious npm packages containing infostealer code: @deadcode09284814/axios-util, axois-utils, and color-style-utils. These packages collectively received 2,678 weekly downloads and contain various malicious capabilities including credential theft, cryptocurrency wallet exfiltration, cloud configuration harvesting, and DDoS botnet functionality. The malware exfiltrates stolen data to remote command-and-control servers and uploads credentials to GitHub repositories. Researchers indicate the attacker operates from a home computer or local server farm and appears financially motivated, targeting victims' cryptocurrency assets while potentially offering DDoS-as-a-service capabilities.
Vidar is a name most infostealer trackers know well -- an Arkei descendant that has been snatching browser credentials and crypto wallets since 2018. It usually ships as a .NET binary or a C++ PE. The v1.5 sample we pulled from Triage on May 13, 2026 is neither. It is a 7 MB Go 1.25.4 native PE with a twelve-category sandbox scoring system, dead-drop C2 via Telegram and Steam profile pages, and enough crypto primitives to make a librarian blush.
A new variant of SHub Stealer dubbed 'Reaper' targets macOS users through fake WeChat and Miro installers, employing sophisticated multi-stage delivery chains that spoof Apple, Google, and Microsoft services. The malware leverages the applescript:// URL scheme to bypass Terminal-based defenses, conducting extensive fingerprinting and anti-analysis checks before execution. Reaper harvests browser credentials, cryptocurrency wallets, developer configurations, iCloud data, and Telegram sessions. It includes an AMOS-style document theft module targeting files under 150MB with chunked uploads. The variant establishes persistence through a fake Google Software Update LaunchAgent and installs a backdoor for remote code execution. The infection specifically avoids CIS regions and employs extensive anti-analysis techniques including WebGL fingerprinting, VM detection, and DevTools interference.
This analysis examines new obfuscation techniques employed by Gremlin stealer malware to conceal malicious payloads within embedded resources. A variant protected by sophisticated commercial packing utility uses instruction virtualization, transforming code into custom bytecode executed by a private virtual machine. The malware siphons sensitive information including payment card details, browser cookies, session tokens, cryptocurrency wallet data, and FTP/VPN credentials from compromised systems. It exfiltrates data to attacker-controlled servers at hxxp[:]194.87.92[.]109 for potential publication or sale. Recent iterations incorporate expanded Discord token extraction, active financial fraud through crypto clipper functionality that replaces cryptocurrency wallet addresses in real-time, and WebSocket-based session hijacking to bypass modern cookie protections. The malware employs advanced anti-analysis techniques including XOR-encoded payloads in .NET resource sections, identifier renaming, string encryp...
A large-scale malware campaign tracked as TroyDen's Lure Factory has been identified distributing LuaJIT-based infostealers through over 300 delivery packages hosted on GitHub. The operation uses AI-generated lure names incorporating obscure biological taxonomy and medical terminology to target developers, gamers, Roblox players, and crypto users. The malware employs a two-component design with a renamed LuaJIT runtime and encrypted Lua payload that evades sandbox detection through anti-analysis checks and extreme sleep delays. Upon execution, it disables proxy detection, captures desktop screenshots, performs geolocation, and exfiltrates data to C2 servers in Frankfurt. The infrastructure demonstrates scalability with multiple IP addresses serving identical encrypted commands, while maintaining simultaneous campaigns across gaming cheats, developer tools, phone trackers, and VPN crackers.
A sophisticated two-stage infostealer named LofyStealer, also known as GrabBot/Slinky, targets Minecraft players through social engineering. The malware comprises a 53.5MB Node.js-based loader disguised within legitimate libraries and a 1.4MB native C++ payload that executes directly in memory. It extracts cookies, passwords, tokens, credit cards, and IBANs from eight different browsers including Chrome, Edge, Brave, Opera GX, and Firefox. The loader uses GitHub Actions for automated compilation while the payload employs direct syscalls to bypass EDR detection. Data is compressed via PowerShell, Base64-encoded, and exfiltrated to a Brazilian-hosted C2 server at 24.152.36.241. The operation is attributed with high confidence to the Brazilian cybercrime group LofyGang, operating a Malware-as-a-Service platform with Free and Premium tiers through a web panel branded as LofyStealer Advanced C2 Platform V2.0.
Threat actors are exploiting AI agent skill formats as a novel attack vector, using convincingly packaged OpenClaw skills to distribute malicious payloads. The latest campaign employs pure social engineering, with skills containing no malicious code themselves but instead tricking users into downloading Windows binaries. The attack leverages a fake GitHub infrastructure hosting GachiLoader, which delivers Rhadamanthys infostealer through fileless injection. The operation uses two delivery mechanisms: Node.js Single Executable Applications and an Electron dropper, both converging on the same payload. GachiLoader employs sophisticated evasion techniques including anti-VM checks, sandbox detection, and privilege escalation, while using a Polygon blockchain smart contract as its C2 resolver for enhanced persistence and obfuscation.
A sophisticated multi-stage malware operation was identified through an exposed C2 panel at 103.241.66[.]238:1337, combining cryptocurrency clipboard hijacking across eight chains, BIP-39 seed phrase theft, browser credential exfiltration, ransomware module (crpx0), and Java RAT builder managed via FastAPI-based panel with license key system. The operation targets Windows and macOS using FedEx and OnlyFans-themed social engineering lures, with complete source code exposed in open directories. The ransomware component communicates with three Russian .ru domains resolving to 31.31.198[.]206 at REG.RU hosting, operating under the identity DataBreachPlus with Telegram, qTox, and ProtonMail contacts. Ten cryptocurrency wallet addresses spanning Bitcoin, Ethereum, Tron, Dogecoin, Litecoin, Solana, Ripple, and Bitcoin Cash were extracted from configurations, indicating a Malware-as-a-Service operation with tiered licensing.
StepDrainer is a Malware-as-a-Service (MaaS) platform engineered to steal digital assets from cryptocurrency wallets, including fungible tokens and high-value NFT collections. The malware supports more than 20 blockchain networks and incorporates multiple draining techniques, particularly abusing ERC-20 token permissions and NFT approval mechanisms.
The platform includes automated asset transfer capabilities, compatibility with widely used mobile wallets, and encrypted logging via Telegram channels for attacker monitoring. StepDrainer is commercially distributed within cybercriminal ecosystems, with pricing models ranging from approximately $750 for full source code access to $150 for a shared version that imposes a 20% commission on successful thefts.
A sophisticated ClickFix campaign targets both Windows and macOS users through fake CAPTCHA pages that trick victims into executing malicious commands. The macOS variant deploys an AppleScript-based infostealer that harvests sensitive data including keychain databases, credentials, and session cookies from 12 browsers, over 200 browser extensions, and 16 cryptocurrency wallets. The malware employs a persistent, non-closable dialog box mimicking legitimate system prompts to force victims into providing their system password. Stolen session cookies enable attackers to bypass multi-factor authentication by hijacking active sessions. The campaign uses client-side JavaScript to filter victims by user-agent, directing desktop users to OS-specific payloads while ignoring mobile devices. Latest macOS updates include native terminal security warnings designed to alert users against pasting potentially malicious commands.
NWHStealer is a Windows infostealer malware actively distributed through multiple platforms including fake Proton VPN websites, code and file hosting services, and YouTube links. It steals browser data, saved passwords, and information from over 25 cryptocurrency wallets. The malware uses two main infection methods: malicious ZIP files with self-injection loaders hosted on free web hosting providers, and fake websites employing DLL hijacking to inject code into the RegAsm process. It exfiltrates stolen data encrypted with AES-CBC to attacker-controlled servers and maintains persistence via scheduled tasks and UAC bypass techniques. There is no known official patch or vendor advisory for this threat. Indicators include specific malicious domains and file hashes.
Between April 6-9, 2026, multiple obfuscated malicious npm packages were identified as variants of the OtterCookie infostealer attributed to North Korean threat actors. The campaign employs a two-layer distribution strategy where benign wrapper packages clone legitimate libraries like big.js while pulling malicious dependencies containing the actual payload. Five malicious packages were identified, each containing obfuscated JavaScript files that execute via postinstall hooks. The toolchain steals credentials, files including Solana wallets and environment configurations, and exfiltrates data to Vercel-hosted C2 infrastructure. On Linux systems, it establishes persistence through SSH backdoor installation. The infrastructure overlaps with documented OtterCookie operations and connects to broader DPRK campaigns including Contagious Interview and Contagious Trader, demonstrating continued evolution in North Korean software supply chain attacks targeting developers.
MacSync Stealer is a macOS infostealer operating as Malware-as-a-Service (MaaS), distributed through SEO poisoning and fake ClickFix CAPTCHAs. The campaign has evolved through three iterations since November 2025, shifting from fake download sites to malicious ChatGPT conversations and finally to sophisticated shell-based loaders with dynamic AppleScript payloads. Threat actors use Google-sponsored search results to redirect victims to fake CAPTCHA pages that trick users into executing malicious terminal commands. The stealer targets browser credentials, cryptocurrency wallets, SSH keys, cloud provider credentials, and Keychain data. A critical capability includes trojanizing Ledger hardware wallet applications to capture seed phrases. The February 2026 campaign generated over 18,000 clicks in three days, with Russian-language comments suggesting operators work within a Russian-speaking ecosystem. The malware employs API key-gated C2 infrastructure and in-memory execution for evasion.
On March 19, a researcher on X posted a suspicious Android APK tied to a phishing page impersonating Paidy, a Japanese buy-now-pay-later service. A quick look at the infrastructure behind it revealed an unauthenticated API sitting wide open, with endpoints exposing payloads, command logs, and the C2 source code itself. The server wasn't running a simple credential harvester. Agents for Android, iOS, Windows, Linux, and macOS were present, alongside a canvas-based device fingerprinting system and code that references iOS sandboxing mechanisms by name. The actor behind it is clearly comfortable with Japanese, and large portions of the codebase show signs of LLM-assisted development.
Jamf Threat Labs discovered a ClickFix-style macOS attack that abuses the applescript:// URL scheme to launch Script Editor and deliver an Atomic Stealer infostealer payload — bypassing Terminal entirely.
Gen Threat Labs has identified Remus, a new 64-bit infostealer attributed to the Lumma Stealer family, emerging after Lumma's takedown and the doxxing of its alleged core members. First campaigns date back to February 2026, with the malware switching from Steam/Telegram dead drop resolvers to EtherHiding and employing new anti-analysis checks. Remus shares multiple characteristics with Lumma including identical string obfuscation techniques, AntiVM checks, direct syscall/sysenter handling, indirect control flow obfuscation, and a unique Application-Bound Encryption bypass. The analysis details test builds labeled Tenzor from September 2025, representing a transitional step between Lumma and Remus. While maintaining Lumma's stealing arsenal for browser passwords, cookies, and cryptocurrency, Remus introduces blockchain-based C2 resolution via EtherHiding, additional anti-sandbox checks targeting analysis tool DLLs, and enhanced device fingerprinting capabilities.
Xloader is an information stealing malware family that evolved from Formbook and targets web browsers, email clients, and File Transfer Protocol (FTP) applications. Additionally, Xloader may execute arbitrary commands and download second-stage payloads on an infected system. The author of Xloader continues to update the codebase, with the most recent observed version being 8.7. Since version 8.1, the Xloader developer applied several changes to the code obfuscation. The purpose of this blog is to describe the latest obfuscation methods and provide an in-depth analysis of the network communication protocol. We highly recommend reading our previous blogs about Xloader in order to get a better understanding of the malware’s internals.
GlassWorm is a sophisticated malware targeting developers through compromised code repositories and package managers. It executes in stages, starting with a stealthy infection that fingerprints the machine and fetches further payloads via the Solana blockchain. The malware steals sensitive data, including cryptocurrency wallets and development credentials, installs a Remote Access Trojan (RAT), and deploys a fake Chrome extension for extensive surveillance. It uses distributed hash tables and blockchain for resilient command and control. While initially focused on developers with potential cryptocurrency assets, the stolen information could enable wider supply chain attacks. Prevention strategies include careful package management, regular extension audits, and up-to-date anti-malware solutions.
A new supply chain attack targeting Trivy has compromised 75 out of 76 version tags in the aquasecurity/trivy-action GitHub repository. The attacker force-pushed these tags to serve malicious payloads, effectively turning trusted version references into a distribution mechanism for an infostealer. The malicious code executes within GitHub Actions runners, targeting sensitive data in CI/CD environments. It harvests secrets from runner process memory and the filesystem, encrypts the collected data, and exfiltrates it to an attacker-controlled endpoint or a fallback GitHub-based channel. The attack's scope is significant, potentially affecting over 10,000 workflow files on GitHub referencing this action.
