All news with #infostealer tag

🛡️ Check Point Research uncovered the YouTube Ghost Network, a large-scale operation that used fake and compromised accounts to distribute infostealers like Rhadamanthys and Lumma. More than 3,000 malicious videos — often disguised as cracked software or game hacks — were reported and removed after being linked to password-protected archives that carried the malware. Compromised accounts, coordinated comment manipulation, and false endorsements were used to build trust and drive downloads.

🔒 Trend Micro reports that the Vidar infostealer has been upgraded to Vidar 2.0, featuring a complete rewrite in C, multithreaded exfiltration, custom browser credential extraction and an AppBound bypass targeting Chrome's app-bound encryption. The release, announced by an actor calling themselves "Loadbaks" on October 6, follows a decline in Lumma Stealer activity after law enforcement disruption and doxxing of its developers. Researchers warn security teams to anticipate increased Vidar activity through Q4 2025 and to adapt detection and mitigation strategies accordingly.

🔒Security researchers uncovered a NuGet typosquat, Netherеum.All, created to harvest cryptocurrency wallet secrets and exfiltrate them to a hidden command-and-control server. Uploaded on October 16, 2025 by user "nethereumgroup" and removed four days later, the package uses a Cyrillic 'e' homoglyph to impersonate Nethereum and falsely claims 11.7 million downloads to appear legitimate. Socket analysts found an XOR-decoded C2 endpoint (solananetworkinstance[.]info/api/gads) and a payload in EIP70221TransactionService.Shuffle that steals mnemonics, private keys, and keystore files. Developers are advised to verify publisher identity, watch for sudden download surges, and monitor anomalous network traffic before adding dependencies.

🔒 SnakeStealer is an infostealer family that surged in early 2025 to top ESET's infostealer detection charts. First seen in 2019 and originally linked to tools marketed as 404 Keylogger/Crypter, it spread widely by abusing Discord and cloud hosting and through phishing attachments, archived payloads and pirated software. Offered as malware‑as‑a‑service, it harvests credentials, clipboard contents, screenshots and keystrokes while using evasion and persistence tricks. Reduce risk by keeping systems updated, enabling MFA, treating unsolicited attachments with caution, changing passwords from clean devices and running reputable security software.

🪲 Researchers at Koi Security have uncovered GlassWorm, a sophisticated self-propagating malware campaign affecting extensions in the OpenVSX and Microsoft VS Code marketplaces. The worm hides executable payloads using Unicode variation selectors, harvests NPM, GitHub and Git credentials, drains 49 cryptocurrency wallets, and deploys SOCKS proxies and hidden VNC servers on developer machines. CISOs are urged to treat this as an immediate incident: inventory VS Code usage, monitor for anomalous outbound connections and long-lived SOCKS/VNC processes, rotate exposed credentials, and block untrusted extension registries.

🛡️ Vidar Stealer 2.0 was released with a complete rewrite in C, multi-threaded data theft and stronger evasion, prompting warnings from security researchers about likely increased campaigns. The update reduces dependencies and footprint while spawning parallel worker threads to accelerate harvesting of browser, wallet, cloud and app credentials. It introduces extensive anti-analysis checks and a polymorphic builder to frustrate static detection. Notably, the malware injects into running browser processes to extract encryption keys from memory and bypass Chrome's App-Bound protections.

🔍Lumma Stealer operations have been disrupted after an underground doxxing campaign exposed personal and operational details of individuals allegedly tied to the malware’s development and administration. Trend Micro links the exposure to rival cybercriminal actors and reports that leaked data—shared on a site called Lumma Rats—included passports, bank details and contact information. The disclosures coincided with reduced C2 activity and the reported compromise of Telegram accounts, prompting many users to seek alternatives such as Vidar and StealC.

🔒 Cybercriminals are using TikTok videos disguised as free activation guides for software such as Windows, Adobe, Spotify, and Discord to distribute info‑stealing malware via a ClickFix technique. The videos instruct users to run a short PowerShell command that fetches a script from slmgr.win, which then downloads a variant of Aura Stealer and an additional payload from Cloudflare Pages. Victims should assume credentials are compromised, reset passwords, and avoid running copied commands in shells or terminal windows.

🚨 Researchers uncovered a malvertising campaign that uses Google Ads to surface convincing fake Homebrew, LogMeIn, and TradingView download sites targeting macOS developers. The pages prompt victims to copy a curl command into Terminal, but the clipboard often contains a base64-encoded installer that decodes and runs an install.sh payload. That script removes quarantine flags, bypasses Gatekeeper, and delivers infostealers that check for analysis environments before executing. Operators deploy AMOS and Odyssey, which harvest browsers, wallets, and credentials; users are urged not to paste unknown commands into Terminal.

🔒 Infostealers are fuelling today’s ransomware wave and the resulting stealer logs are widely available on the dark web, sometimes for as little as $10. At ISACA Europe 2025, Tony Gee of 3B Data Security urged security teams to adopt targeted technical controls in addition to baseline measures like zero trust and network segmentation. He recommended six practical defenses — including regular password rotation, FIDO2-enabled MFA, forced authentication, shorter session tokens, cookie replay detection and impossible-travel monitoring — to reduce the usefulness of stolen credentials and session data.

🔐 Google Threat Intelligence has linked a campaign to UNC5342, a cluster tied to North Korea, that now uses EtherHiding to distribute malware via smart contracts on public blockchains such as BNB Smart Chain and Ethereum. The attackers lure developers through LinkedIn recruitment ruses, move conversations to Telegram or Discord, and deliver npm-package downloaders that chain into BeaverTail, JADESNOW, and the Python backdoor InvisibleFerret. By embedding payloads in on-chain contracts, the group turns blockchains into tamper-resistant dead-drops that are hard to takedown and easy to update, enabling sustained cryptocurrency theft and long-term espionage.

🪙 Google Threat Intelligence Group links a financially motivated actor, UNC5142, to widespread compromises of WordPress sites that leverage EtherHiding and on-chain smart contracts to distribute information stealers such as Atomic, Lumma, Rhadamanthys and Vidar. The campaign injects a multi-stage JavaScript downloader (CLEARSHORT) into plugins, themes and databases to query malicious BNB Smart Chain contracts, which return encrypted landing pages that use ClickFix social engineering to trick Windows and macOS users into executing stealer payloads. Google flagged roughly 14,000 infected pages through June 2025, and observed a move to a three-contract proxy-like architecture since November 2024 that improves agility and resistance to takedown.

🔒 Google Threat Intelligence Group (GTIG) reports that a DPRK-aligned threat actor tracked as UNC5342 has employed EtherHiding since February to host and deliver malware via smart contracts on Ethereum and the BNB Smart Chain. Campaigns begin with fake technical interviews that trick developers into running a JavaScript downloader named JADESNOW, which fetches a JavaScript build of InvisibleFerret for in-memory espionage and credential theft. The method offers anonymity, takedown resistance, and low-cost, stealthy payload updates.

🧩 GTIG reports that DPRK-linked UNC5342 has adopted EtherHiding, using smart contracts on public blockchains to store and deliver malicious JavaScript payloads. The actor leverages social engineering—fake recruiter lures and technical interviews—to deploy the JADESNOW downloader, which fetches and decrypts on-chain payloads and stages the Python backdoor INVISIBLEFERRET. Google recommends enterprise controls and Chrome management policies to disrupt this resilient, decentralized C2 method.

🔐 Since late 2023, Mandiant and the Google Threat Intelligence Group tracked UNC5142, a financially motivated cluster that compromises vulnerable WordPress sites to distribute information stealers. The actor's CLEARSHORT JavaScript loader uses Web3 to query smart contracts on the BNB Smart Chain that store ABIs, encrypted landing pages, AES keys, and payload pointers. By employing a three-contract Router-Logic-Storage design and abusing legitimate hosting (Cloudflare Pages, GitHub, MediaFire), operators can rotate lures and update payload references on-chain without changing injected scripts, enabling resilient, low-cost campaigns that GTIG found on ~14,000 injected pages by June 2025 and which showed no on-chain updates after July 23, 2025.

🔍 Talos uncovered a campaign linked to the DPRK-aligned cluster Famous Chollima that used a trojanized Node.js package and a malicious VS Code extension to deliver merged BeaverTail and OtterCookie tooling. The combined JavaScript payloads include a newly observed keylogger and screenshot module alongside clipboard theft, targeted file exfiltration, remote shell access, and cryptocurrency extension stealing. Indicators, C2 addresses, Snort/ClamAV detections, and mitigation guidance are provided.

🛡️ Minecraft mods can enhance gameplay but also serve as vectors for malware. This article explains how threat actors disguise Trojans, infostealers, ransomware and cryptominers as mods or cheat tools and distribute them via GitHub, mod repositories and forums. It outlines practical precautions — sourcing mods from trusted repositories, checking developer reputation and file types, using non-admin accounts, backups and security software — and steps to take if a mod is suspected malicious.

🛡️The Unit 42 report details a multi-stage phishing campaign that leverages heavily obfuscated JavaScript/VBS and PowerShell to load a C# .NET loader named PhantomVAI, which hides DLL payloads inside image files via steganography. The loader's VAI routine performs virtual-machine detection, establishes persistence (scheduled tasks, wscript, Run keys) and retrieves payloads by process hollowing into legitimate host processes. Observed final payloads include Katz Stealer, AsyncRAT and FormBook. Palo Alto Networks' Advanced WildFire, Cortex XDR and XSIAM have updated protections and indicators of compromise.

🔑 Keyloggers are monitoring tools that record keyboard input and exfiltrate captured data to third parties. They appear as hardware devices between a keyboard and host or as software installed legitimately or via malware; advanced variants also capture screenshots, clipboard contents and mobile data such as GPS or audio. While criminals deploy keyloggers to steal credentials and financial information, enterprises and law enforcement sometimes use them for troubleshooting, compliance and surveillance. Mitigation requires layered defenses: updated AV/anti-rootkit tools, behavioral monitoring, restricted privileges, virtual keyboards where appropriate and strong authentication.

🛡️ FortiGuard Labs has identified a campaign distributing the Stealit infostealer via disguised game and VPN installers shared on file‑hosting sites and platforms like Discord. Attackers use Node.js Single Executable Apps (SEA) and PyInstaller bundles, heavy obfuscation and multiple anti‑analysis techniques to avoid detection. Once executed, Stealit harvests data from browsers, game clients, messaging apps and cryptocurrency wallets, and its operators rotate C2 domains while marketing the toolkit commercially.