All news with #data exfil via tools tag

Iran-Linked MuddyWater Targets 100+ Organisations Globally

🔒 Group-IB links a broad espionage campaign to Iran-aligned MuddyWater that leveraged a compromised email account accessed via NordVPN to send convincing phishing messages. The actor distributed weaponized Microsoft Word documents that coax recipients to enable macros, which execute VBA droppers that write and decode a FakeUpdate loader. FakeUpdate installs an AES-encrypted payload that launches the Phoenix v4 backdoor. Targets exceeded 100 organisations across the MENA region, predominantly diplomatic and government entities.

PhantomCaptcha Phishing Targets Ukraine Aid Groups

🕵️ SentinelOne describes a coordinated spear-phishing campaign named PhantomCaptcha that used booby-trapped PDFs and a fake Zoom site to deliver a WebSocket-based remote access trojan (RAT). The October 8, 2025 operation targeted members of humanitarian and government organizations connected to Ukraine, including Red Cross, UNICEF Ukraine, and several regional administrations. Victims were lured to a ClickFix-style fake Cloudflare CAPTCHA that prompted a malicious PowerShell command, which fetched an obfuscated downloader and a second-stage payload. The final WebSocket RAT connects to wss://bsnowcommunications[.]com:80 and enables remote command execution, data exfiltration, and further malware deployment.

PhantomCaptcha campaign targets Ukraine relief organisations

🛡️Researchers uncovered the 'PhantomCaptcha' phishing campaign that impersonated the Ukrainian President's Office to target humanitarian and government organisations supporting Ukraine relief efforts. Beginning 8 October 2025, malicious PDFs directed recipients to a fake Zoom site and a Cloudflare-like verification page that tricked users into executing PowerShell via a 'Paste and Run' technique. The multi-stage malware included a large obfuscated downloader, a reconnaissance module and a WebSocket-based RAT. SentinelLABS and the Digital Security Lab of Ukraine advise monitoring PowerShell, enforcing execution policies and tracking suspicious WebSocket connections.

PhantomCaptcha ClickFix Attack Targets Ukraine Relief Orgs

🛡️ A one-day spearphishing campaign named PhantomCaptcha targeted Ukrainian regional government officials and multiple war-relief organizations on October 8, using malicious PDFs that linked to a fake Zoom domain and impersonated the President’s Office. According to SentinelLABS, the operation used a fake Cloudflare CAPTCHA to trick victims into copying and pasting a token into the Windows Command Prompt, which executed a PowerShell downloader and deployed a WebSocket RAT. The lightweight RAT provided remote command execution and data exfiltration capabilities, and researchers found follow-on activity delivering spyware-laced Android APKs to users in Lviv.

Russian ColdRiver Hackers Use Fake CAPTCHA to Deploy Malware

⚠️ Google Cloud’s Threat Intelligence Group attributes a new campaign to Russian state-linked ColdRiver actors who are using fake “I am not a robot” CAPTCHA pages to deliver espionage malware, including NOROBOT, YESROBOT, and MAYBEROBOT. The attackers use a ClickFix social-engineering chain and multi-stage, encrypted payloads with split cryptographic keys to evade detection and rebuild tooling rapidly after exposure. Organizations are urged to emphasize behavioral monitoring, EDR/NDR telemetry, and simulated interactive-phishing tests to detect these user-assisted intrusions.

Typosquatted Nethereum NuGet Package Steals Wallet Keys

🔒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.

Vidar Stealer 2.0 Rewritten in C with Multi-Threading

🛡️ 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.

Russian Star Blizzard shifts to 'Robot' malware families

🔐 The Russian state-backed Star Blizzard group (aka ColdRiver/UNC4057) has shifted to modular, evolving malware families — NOROBOT, YESROBOT, and MAYBEROBOT — delivered through deceptive ClickFix pages that coerce victims into executing a fake "I am not a robot" CAPTCHA. NOROBOT is a malicious DLL executed via rundll32 that establishes persistence through registry changes and scheduled tasks, stages components (including a Windows Python 3.8 install), and, after iteration, primarily delivers a PowerShell backdoor. Google Threat Intelligence Group and Zscaler observed the transition from May through September and reported that ColdRiver abandoned the previously exposed LostKeys tooling shortly after disclosure. GTIG has published IoCs and YARA rules to help defenders detect these campaigns.

China Alleges NSA Cyberattack on National Time Service

🔍 China’s security authorities publicly accused the US National Security Agency of a covert operation against the National Time Service Center, alleging an SMS-service vulnerability was exploited beginning March 25, 2022 to compromise staff phones and steal data. Experts told CSO the claim is technically plausible but there is no public forensic evidence to confirm it conclusively. The alleged intrusion could affect Beijing Time, potentially disrupting communications, finance, power, transportation and space operations. Security specialists recommend hardening time infrastructure, avoiding SMS-based privileged logins, validating clocks against multiple trusted references, deploying cryptographic attestation for time signals, and following guidance from CISA.

Inside the attack chain: Azure Blob Storage threats

🔐 Microsoft Threat Intelligence analyzes how attackers target Azure Blob Storage across the full attack chain, emphasizing risks from exposed containers, compromised keys and SAS tokens, and abuse of automation such as Event Grid and Azure Functions. The blog maps these behaviors to the MITRE ATT&CK framework and illustrates tactics including data poisoning, covert C2 via metadata, and replication-based distribution. Microsoft recommends applying zero trust principles, enforcing least privilege with Microsoft Entra RBAC/ABAC, and enabling Defender for Storage with malware scanning, CSPM, and sensitive data discovery to detect, contain, and remediate storage-focused threats.

TikTok Videos Push Infostealers via ClickFix Activation Scams

🔒 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.

Google Ads Promote Fake Homebrew, LogMeIn, TradingView Sites

🚨 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.

North Korean Hackers Use EtherHiding to Steal Crypto

⚠️ Google Threat Intelligence Group has linked a North Korean threat actor to EtherHiding, a technique that embeds malicious JavaScript inside smart contracts so the blockchain functions as a resilient command-and-control server. Tracked as UNC5342, the actor used EtherHiding within an elaborate social-engineering campaign to deliver JADESNOW and a JavaScript variant of INVISIBLEFERRET, leading to multiple cryptocurrency heists. The campaign targets developers via fake recruiters and deceptive coding tests on Telegram and Discord.

North Korean Group Adopts EtherHiding for Malware Campaign

🔐 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.

Microsoft Digital Defense Report 2025: Threat Trends

🔒 Microsoft's 2025 Digital Defense Report finds that most attacks aim to steal data for profit, with extortion and ransomware responsible for over 52% of incidents while espionage accounts for only about 4%. Covering July 2024–June 2025, the report highlights rising use of AI, automation, and off‑the‑shelf tools that enable scalable phishing, malware, and identity theft. Microsoft urges adoption of phishing‑resistant MFA, AI‑driven defenses, and strengthened cross‑sector collaboration to protect critical public services and build resilience.

DPRK Actor UNC5342 Employs EtherHiding for Crypto Theft

🧩 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.

DPRK Hackers Adopt EtherHiding to Conceal Malware Campaigns

🔒 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.

Merged BeaverTail and OtterCookie Tooling Observed in Attacks

🔍 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 — how malicious mods put players at risk

🛡️ 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.

DDR4 WireTap and Battering RAM: Server TEE Attacks Explained

🔒 Two independent research teams demonstrated practical physical attacks that extract encrypted data from server trusted execution environments by intercepting DDR4 memory traffic. The U.S. WireTap proof-of-concept slowed memory clocks and used an inexpensive legacy logic analyzer to recover keys from Intel SGX. The Battering RAM team employed a tiny interposer and a Raspberry Pi Pico to mirror writes and target both Intel SGX and AMD SEV-SNP covertly. Both efforts drastically lower cost and complexity compared with prior work, though vendors note that physical attacks sit outside their threat model.