Kaspersky researchers have uncovered a previously undocumented malware campaign called StrikeShark, which uses a custom loader named SharkLoader to deploy Cobalt Strike Beacon on compromised systems. Initial access is gained through exploitation of vulnerabilities in internet-facing applications (Microsoft Exchange ProxyLogon, Openfire, GeoServer, Fortinet, Cisco, and others) as well as dropper executables disguised as legitimate software like Google Update and Cisco AnyConnect. SharkLoader employs DLL sideloading via a legitimate Windows binary (SystemSettings.exe), uses 'Perfect DLL Hijacking' to bypass the Windows loader lock, and deploys multiple API hooks via Microsoft Detours and MinHook to evade memory scanning. The Cobalt Strike Beacon is encrypted with Blowfish and AES, reflectively loaded in memory, and executed in a suspended thread. Post-compromise activity includes Active Directory enumeration, credential dumping from LSASS and NTDS, and use of open-source tools (FScan, Searchall, Pillager) associated with Chinese-speaking developers. Victims span government entities, diplomatic organizations, and software development companies across Indonesia, Taiwan, Lebanon, Syria, Hong Kong, Colombia, and more. Attribution remains preliminary with low confidence pointing to a Chinese-speaking threat actor.
Nguồn: https://securelist.com/strikeshark-campaign/120326. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.
Vào ngày 24/6/2026, tin tặc đã phát tán phiên bản độc hại của 20 package npm thuộc hệ sinh thái Leo Platform chỉ trong vòng chưa đầy 3 giây, sử dụng toolkit 'Phantom Gyp' tương tự chiến dịch Miasma trước đó. Phần mềm độc hại đánh cắp bí mật từ GitHub Actions, kho lưu trữ đa đám mây (AWS, GCP, Azure), registry package, HashiCorp Vault, Kubernetes và trình quản lý mật khẩu, sau đó exfiltrate qua token GitHub của nạn nhân để tránh bị phát hiện. Nó còn hoạt động như một worm trong chuỗi cung ứng, tự động phát tán phiên bản độc hại các package mà nạn nhân có quyền publish bằng cách vượt qua xác thực 2FA.
Lập trình viên nên đọc bài này để hiểu cách một cuộc tấn công supply chain mới sử dụng các kỹ thuật phức tạp—như obfuscation và evasion Bun—để tránh phát hiện và khai thác quyền truy cập vào các hệ thống quan trọng từ các gói npm phổ biến, từ đó cảnh báo về rủi ro khi sử dụng các thư viện công cộng mà không kiểm tra nguồn gốc và bảo mật.
A detailed technical analysis of a ClickFix attack chain observed in May 2026 that led to a full hands-on-keyboard intrusion across 11 hosts. The infection began with a user tricked into running a command via the Windows Run Dialog, which fetched and silently installed an MSI dropping 'Potemkin', a custom x64 loader using a Domain Generation Algorithm (DGA) with XorShift32 seeded at 151678 to find its C2. Potemkin reflectively loads 'RMMProject', a 4.4 MB Lua-scriptable DLL with 15 task types including browser credential theft (with a Chrome App-Bound Encryption bypass via DLL injection), hidden remote desktop control, process injection, and module loading. The attacker also deployed EtherRAT (a Node.js backdoor resolving C2 via Ethereum blockchain) and Cloudflare tunnels, then moved laterally via WMIExec and SMBExec to reach the domain controller. The post includes full DGA Python implementation, cipher decryption algorithm, C2 protocol details, and indicators of compromise.
Cybersecurity researchers at University College Cork have found that AI-assisted malware creation, dubbed 'vibeware,' poses a growing threat by generating functionally identical but structurally varied malicious code that evades traditional static detection methods like hash matching and YARA rules. The UCC team demonstrated that malware targeting Linux systems could be crafted with as few as two prompts using tools like Cursor, which did not restrict the requests. Experts from McAfee, Bitdefender, and ProjectDiscovery warn that LLMs lower the barrier to entry for threat actors, enabling even non-coders to build malware. The consensus is that defenders must shift to behavioral and AI-driven detection strategies. Google's discovery of PROMPTFLUX — malware that calls the Gemini API at runtime to rewrite its own code — illustrates how adaptive AI-generated malware could become.
Three malicious npm packages — postcss-minify-selector-parser, postcss-minify-selector, and aes-decode-runner-pro — have been impersonating the legitimate PostCSS selector parser library and silently installing a Windows RAT on developer machines. Published by a single npm account, the packages use AES-256-GCM encrypted payloads, download a second-stage ZIP from a fake NVIDIA domain, and deploy Nuitka-compiled Python modules that establish persistence via a Windows registry run key and connect to a C2 server. A dedicated module targets Chrome saved credentials using Windows DPAPI. Detection steps include checking npm dependency trees, scanning %TEMP% for specific directories and files, inspecting the registry for a 'csshost' entry, and monitoring network traffic to a known C2 IP. Remediation requires isolating the machine, removing the packages, deleting artifacts, rotating all Chrome-stored credentials, and notifying security teams on corporate devices.

A malware developer has been found embedding policy-triggering text about nuclear and biological weapons inside JavaScript comment blocks in spyware. The technique exploits AI-based code analysis pipelines: because some scanners feed file content directly to LLMs without isolating it as untrusted data, the fake instructions can cause refusal behavior, prompt confusion, or premature classification before the scanner reaches the actual malicious code. The trick does not defeat traditional static analysis tools like YARA rules, entropy checks, or AST parsing, but is an effective anti-analysis measure against naive LLM-first triage systems.
A new macOS ClickFix campaign uses fake CAPTCHA pages to trick users into running Terminal commands that silently download, mount, and execute malicious DMG files. The payload is the Atomic macOS Stealer (AMOS), which harvests browser credentials, cryptocurrency wallet data, Apple Keychain files, messaging app data, and user documents. Unlike previous DMG-based attacks requiring manual user interaction, this campaign automates the entire infection chain via hdiutil and the macOS open command. The malware targets over a dozen Chromium and Firefox-based browsers, multiple crypto wallets, and even replaces legitimate Ledger Live and Trezor Suite installations with malicious versions. All stolen data is zipped and exfiltrated to attacker-controlled servers.
Google Threat Intelligence Group (GTIG) has published a detailed analysis of STOCKSTAY, a multi-component .NET backdoor attributed to the Russian state-linked threat actor Turla (FSB Center 16). Active since at least December 2022, STOCKSTAY targets Ukrainian government and military organizations as well as European entities with foreign affairs interests. The backdoor uses a modular architecture (STOCKBROKER for C2 tunneling, STOCKMARKET for orchestration, STOCKTRADER for execution) communicating over encrypted WebSockets. It masquerades as benign applications like stock market tools, PDF viewers, and calculators. STOCKSTAY shares significant code overlaps with Turla's established KAZUAR toolkit, including a shared string obfuscation mechanism called K1MORPHER based on the Squirrel3 PRNG. Deployment methods include malicious RDP files, HTA files, WinRAR CVE-2025-8088 exploitation, and GitHub-hosted MSI installers. The post includes a detailed operational timeline from 2022–2025, YARA detection rules, and indicators of compromise.
Kaspersky's 2026 SMB threat report reveals a nearly fivefold increase in cyberattacks disguising malware as popular AI tools like Claude compared to 2025. Fake messenger apps remain the most common lure with over 414,000 attacks detected in the first four months of 2026. Phishing campaigns increasingly exploit legitimate platforms (OneDrive, Zoom Docs) to bypass email filters. Dark web analysis shows SMBs and mid-sized businesses account for more than half of all initial access listings sold by brokers, with Middle East, Africa, and Latin America seeing significant increases. The report includes a practical cybersecurity action plan covering access controls, employee training, backups, and specialized security solutions.