credential Archives

Winsage

April 9, 2026

This fake Windows support website delivers password-stealing malware

A phishing campaign has been identified that uses a counterfeit Microsoft support website, microsoft-update[.]support, to trick users into downloading a malicious Windows update disguised as WindowsUpdate 1.0.0.msi. This file, created on April 4, 2026, appears legitimate but contains malware designed to steal sensitive information. The campaign targets French-speaking users, leveraging recent data breaches in France to create convincing scams. The malware, once executed, installs an Electron application that runs a Python interpreter, which then deploys various data theft tools. It employs two persistence mechanisms: modifying the Windows registry and creating a shortcut in the Startup folder. The malware connects to external sites for reconnaissance and data exfiltration, using domains like datawebsync-lvmv.onrender[.]com and store8.gofile[.]io. The malware's components have evaded detection by antivirus tools, with VirusTotal reporting zero detections for the main executable and its launcher. Users are advised to check their registry, remove suspicious files, change passwords, and run a full system scan if they suspect installation of the malicious update. Safe updating practices include using the built-in Windows update feature and being cautious of phishing attempts. Indicators of compromise include specific file hashes, domains associated with the phishing campaign, and file system artifacts related to the malware's installation.

Winsage

April 9, 2026

BlueHammer: Windows zero-day exploit leaked

A proof-of-concept (PoC) exploit called BlueHammer has been released on GitHub, targeting an unpatched local privilege escalation vulnerability in Windows. The exploit, attributed to users Chaotic Eclipse and Nightmare Eclipse, has been modified by security researchers to work on updated versions of Windows 10, 11, and Windows Server. The exploit manipulates Microsoft Defender to create a Volume Shadow Copy, allowing access to sensitive registry files and enabling the extraction of NTLM password hashes. This facilitates the alteration of a local Administrator's password and subsequent login. The exploit can duplicate the Administrator's security token and create a malicious Windows Service that runs with SYSTEM privileges. While there are no reports of BlueHammer being exploited by malicious actors, researchers warn that such PoC code can be weaponized quickly. Microsoft has committed to investigating reported security issues related to this vulnerability.

Tech Optimizer

April 8, 2026

Avast Antivirus: A Complete Guide to the Software and Its Security Features

Avast antivirus is a widely used digital security solution for mobile and desktop platforms, developed by Gen Digital. It offers a free version that is accessible and easy to set up, making it popular among first-time users. Key security features include real-time threat protection, web protection tools, email protection, behavior monitoring, and a network inspector. The software operates quietly in the background, has a clean and intuitive interface, and provides essential security features in its free version. However, users may experience intrusive upgrade prompts, and advanced tools require a paid subscription. Avast distinguishes itself by offering behavioral threat detection in both free and paid versions, and its extensive user base enhances its threat detection capabilities. The free version includes basic protections suitable for everyday online activities, but advanced features necessitate an upgrade. Users are encouraged to adopt strong passwords, utilize password managers, enable two-factor authentication, and practice safe browsing habits to ensure online privacy.

Tech Optimizer

April 7, 2026

Norton 360: Comprehensive Cybersecurity for Devices

Norton 360 is a comprehensive cybersecurity solution that protects consumers and businesses from digital threats, integrating features like a VPN and password manager. It safeguards various devices, including PCs and smartphones, and offers multiple editions for individuals, families, and small businesses. Key features include real-time threat detection, a smart firewall, a no-logs VPN, a password manager, parental controls, behavior-based detection for zero-day threats, cloud backup functionality, and performance optimization tools. The suite is effective against phishing, malware, and ransomware, with a 100% detection rate confirmed by independent tests. Norton 360 also caters to small businesses with endpoint protection, compliance tools, and secure file sharing. It employs heuristics and machine learning for threat adaptation and supports unlimited devices in premium plans. The software is compatible with Windows, macOS, Android, and iOS, and offers a VPN service with servers in over 30 countries. Norton 360 competes in the global cybersecurity market, maintaining a strong presence in North America and Europe, with subscription models ranging from basic to deluxe editions. Demand for the product has increased due to high-profile data breaches, and it is available in over 150 countries. Common use cases include protecting home networks, securing client data for freelancers, and safeguarding school-issued laptops. Norton 360 is part of Gen Digital Inc., which focuses on consumer cybersecurity.

Tech Optimizer

April 6, 2026

36 Malicious npm Packages Exploited Redis, PostgreSQL to Deploy Persistent Implants

Cybersecurity researchers have discovered 36 malicious packages in the npm registry that impersonate Strapi CMS plugins. These packages exploit Redis and PostgreSQL, deploy reverse shells, harvest credentials, and establish persistent implants. Each package consists of three files—package.json, index.js, and postinstall.js—without descriptions or repositories, and all use version 3.6.8 to mimic legitimate Strapi plugins. The malicious packages follow a naming convention starting with "strapi-plugin-" and were uploaded by four accounts within 13 hours. The identified packages include names like strapi-plugin-cron, strapi-plugin-database, and strapi-plugin-server. The malicious code is embedded in the postinstall script, executing automatically upon installation with the same privileges as the user. The payloads evolve from exploiting Redis for remote code execution to attempting direct PostgreSQL database exploitation and deploying persistent implants for remote access. The campaign appears to target cryptocurrency platforms, as indicated by the focus on credential theft and digital assets. Users of these packages are advised to assume compromise and rotate credentials. This incident reflects a broader trend of supply chain attacks in the open-source ecosystem, with recent examples including credential exfiltration payloads in GitHub repositories and compromised GitHub Actions workflows. Group-IB reported that software supply chain attacks are increasingly reshaping the cyber threat landscape, targeting trusted vendors and open-source software to gain access to downstream organizations.

Winsage

April 6, 2026

Disgruntled researcher leaks “BlueHammer” Windows zero-day exploit

Exploit code for a Windows privilege escalation vulnerability, named BlueHammer, has been released, allowing attackers to gain SYSTEM or elevated administrator permissions. This zero-day vulnerability was disclosed by a researcher, Chaotic Eclipse, who expressed frustration with Microsoft's handling of the issue. The exploit combines a time-of-check to time-of-use (TOCTOU) issue with path confusion, granting local attackers access to the Security Account Manager (SAM) database, which contains password hashes for local accounts. While the exploit is confirmed to work, it has been found unsuccessful on Windows Server due to bugs that hinder its effectiveness. Attackers can gain local access through various means, raising significant security risks. Microsoft has not yet responded to inquiries about the BlueHammer flaw.

Winsage

April 5, 2026

Microsoft Ships Emergency Windows 11 Fix for Broken Patch

On March 31, Microsoft released emergency update KB5086672 in response to issues caused by the previous preview patch KB5079391, which left many Windows 11 devices in a loop with error code 0x80073712, blocking access to March security fixes. Microsoft withdrew KB5079391, which was launched on March 26, and replaced it with KB5086672, a cumulative update that includes all fixes from March 2026. KB5086672 supersedes previous updates, including KB5079473, KB5085516, and KB5079391. Users with the "Get the latest updates as soon as they’re available" setting will receive KB5086672 automatically, while others can manually check for updates or download it from the Microsoft Update Catalog. Microsoft has been issuing multiple emergency updates recently, raising concerns about the quality of its update pipeline, with a history of emergency patches for various issues affecting Windows 10, Windows 11, and Windows Server. The issues from KB5079391 may resurface in the upcoming April cumulative update.

Tech Optimizer

April 3, 2026

Why I Use Additional Antivirus Protection on Top of Microsoft Defender

Microsoft Defender has evolved into a reliable security tool, integrating seamlessly with the Windows operating system and offering features such as real-time malware scanning, cloud-based threat intelligence, collaboration with the Windows firewall, and ransomware protections. It receives automatic updates through Windows Update, providing users with up-to-date threat definitions. While Defender is sufficient for users with straightforward online activities, those engaging in riskier behaviors or handling sensitive information may benefit from additional protection. Some antivirus solutions offer features that Defender lacks, such as enhanced web protections, phishing defenses, and parental controls. The text mentions that the author uses Bitdefender alongside Microsoft Defender for added security, citing its stronger web protections and broader range of tools. It emphasizes that effective security also relies on user habits, including keeping software updated, avoiding suspicious downloads, using strong passwords, and regularly backing up data.

Winsage

March 27, 2026

Microsoft tells crusty old kernel drivers to get with the Windows Hardware Compatibility Program

Microsoft is enhancing the security of the Windows kernel by eliminating trust for kernel drivers not certified through the Windows Hardware Compatibility Program (WHCP) starting with the April 2026 Windows Update. This change specifically targets kernel drivers signed by the now-obsolete cross-signed root program, which has been associated with security vulnerabilities. The new policy will initially be introduced in an "evaluation mode" to monitor and audit driver loads for potential compatibility issues. Custom kernel drivers can still be used under the Application Control for Business policy, but must be signed by an authority within the device's Secure Boot Platform Key or Key Exchange Key variables. The changes will impact Windows 11 versions 24H2, 25H2, 26H1, and Windows Server 2025.

AppWizard

March 19, 2026

New Perseus Android Banking Malware Monitors Notes Apps to Extract Sensitive Data

Cybersecurity researchers have identified a new family of Android malware called Perseus, designed for device takeovers and financial fraud. It utilizes Accessibility-based remote sessions for real-time monitoring and interaction with infected devices, particularly targeting Turkey and Italy. Perseus monitors user notes to extract personal or financial information and is distributed through dropper applications via phishing websites. It expands on the codebase of previous malware like Phoenix and employs disguises as IPTV services to reduce user suspicion. Once operational, it performs overlay attacks and captures keystrokes to steal credentials from financial applications. The malware allows operators to issue commands through a command-and-control panel, enabling various malicious actions, including capturing note content and initiating remote visual streams. Perseus also conducts environment checks to evade detection and ensure it operates on legitimate devices.