trusted applications Archives

Tech Optimizer

September 5, 2026

Silver Fox uses adware to distribute ValleyRAT backdoor

The cyber threat group Silver Fox is distributing the ValleyRAT backdoor disguised as a legitimate signed Chinese adware application, specifically bundled with the QN Wallpaper tool. This malware allows attackers to gain comprehensive control over infected machines, enabling them to collect sensitive information, capture screenshots, and deploy additional malicious modules. The attack utilizes DLL sideloading, where a modified version of QN Wallpaper loads a malicious DLL from the same directory, circumventing signature-based security measures. The installer disables Windows Defender, adds itself to autorun entries, and uses the "runas" command to elevate privileges if the user lacks administrator rights. ValleyRAT also marks its process as critical, potentially causing a blue screen of death if terminated. Kaspersky has identified Silver Fox as the likely perpetrator of this campaign, known for similar techniques.

Winsage

August 26, 2026

Microsoft tests new privacy controls for Windows 11 desktop apps

Microsoft is enhancing privacy controls in Windows 11, allowing users to manage camera, microphone, and location permissions for individual desktop applications. This feature is being tested in the Windows 11 Insider Experimental Preview Build 26340.9233. Users can access these settings through Settings > Privacy & security > Camera, Microphone, or Location, where they can grant or revoke access. Microsoft advises users to only grant access to trusted applications. This update follows a previous announcement about smartphone-style app permission prompts, aiming to give users more control over their personal data and device features. The rollout of these features will occur in phases, with adjustments based on user feedback. Additionally, Microsoft is testing a new accessibility setting to automatically maximize app windows upon opening.

Winsage

August 22, 2026

Windows 11’s legacy UI cleanup continues as Microsoft updates one of its oldest dialogs

Microsoft has introduced a revamped AutoPlay dialog box in the latest Windows Insider build, utilizing WinUI for improved performance and visual consistency. The updated AutoPlay interface supports dark mode and retains familiar functionalities, with notifications now docked in the notification center. A new accessibility feature, Open apps maximized, allows application windows to open automatically in a maximized state. Users can manage camera, microphone, and location access for desktop apps on an individual basis, with permissions reviewed in Settings > Privacy & security. Existing app permission decisions remain unchanged. PDF and non-HTML files can now be previewed in File Explorer, and the Microsoft Store update supports in-app purchases in packaged WinUI 3 apps. Recent builds have fixed taskbar animation issues and improved mouse cursor visibility in certain applications. The Settings section has been updated to display version numbers for packaged apps.

Tech Optimizer

June 11, 2026

Avast One: Security and privacy suite under the microscope

Avast One is the flagship consumer security suite from Avast (Gen Digital), combining antivirus, firewall, VPN, and privacy utilities into a single subscription for Windows, macOS, Android, and iOS. It offers four primary areas: device security, online privacy, identity protection, and performance tools. Device security includes real-time antivirus, Web Shield, Mail Shield, and Ransomware Shield. The online privacy component features a full VPN service with bank-grade encryption and a no-logs policy. Identity protection includes data breach monitoring and, in some markets, credit monitoring. Performance tools assist with disk cleanup and system optimization. Avast One has three plan tiers: Avast One Essential (free), Avast One Individual (paid, supports multiple devices), and Avast One Family (paid, supports up to 30 devices). Pricing varies based on promotions, with Avast One Individual typically around per year and Avast One Family ranging from to 0 per year. The suite can be downloaded directly from Avast's website, with installers available for various platforms. Avast One includes automatic updates and is designed to operate lightly on modern hardware, with options to minimize system impact during scans. Customer support includes self-help documentation, community forums, and direct support for paying customers. Avast One aims to appeal to both non-technical users and power users, providing a user-friendly interface while allowing for advanced configurations. The product is positioned as a comprehensive solution for households looking to secure multiple devices with a single subscription.

AppWizard

June 5, 2026

Microsoft 365 Android Apps Let Any App Steal Account Tokens via Leftover Debug Flag

A vulnerability in several Microsoft 365 Android applications, identified as FlagLeft, was caused by a development flag left enabled in production builds, which disabled checks meant to restrict account-token sharing to trusted applications. This flaw affected applications such as Word, PowerPoint, Excel, Microsoft 365 Copilot, Microsoft Loop, and OneNote, allowing unauthorized apps to request and obtain user tokens without permission. Microsoft Teams was unaffected. The vulnerability was demonstrated by Enclave, allowing access to user emails through an unverified app. On May 12, Microsoft issued four CVEs for the affected applications, categorized under improper access control. The patched version of Word for Android is 16.0.19822.20190, and users are advised to update their applications. The patch does not invalidate already compromised tokens, so users should revoke these tokens and sign in again.

Tech Optimizer

May 21, 2026

Do you need antivirus on your phone?

Mobile security discussions often question the necessity of antivirus programs for smartphones. While traditionally seen as essential, the need for antivirus software is being reevaluated, especially for advanced smartphones. Apple's iPhone has stringent security measures that prevent traditional antivirus scanning, with scams being the primary threat rather than viruses. In contrast, Android devices allow sideloading, increasing the risk of malware, despite Google monitoring the Play Store. For users primarily downloading from official stores, antivirus applications may not be necessary. Instead, users should focus on keeping devices updated, using strong passwords, and enabling two-factor authentication to enhance security.

Tech Optimizer

April 27, 2026

Bitdefender Total Security review: Tried and tested by an antivirus expert

Modern antivirus solutions have integrated various tools into a single interface, with Bitdefender exemplifying this trend. It features a dashboard for system scans, recommendations, and account management. The “Protection” section includes antivirus settings, online threat defense, and firewall options. Users can enable an anti-spam service for email applications like Outlook and Thunderbird. The privacy tab offers an anti-tracker browser plugin and a limited free VPN. Additional privacy features include video and audio protection to manage webcam and microphone access, and Safepay for secure online banking. Bitdefender also provides a desktop widget for protection status, secure file shredding, and remote device management options. In terms of performance, Bitdefender operates efficiently, using less than 100MB of RAM for its main interface, but can spike during full system scans. It successfully detected a trojan during a scan of a linked Google Drive account. Bitdefender effectively identified all test files in antivirus testing and enhances browser security by intervening when users ignore warnings. The application is easy to install, with a compact file size, and offers a Quick Scan feature that allows users to scan only applications after a thorough initial scan.

Tech Optimizer

April 21, 2026

Even trusted apps can infect your PC with malware now

Recent supply-chain attacks are increasingly targeting well-known software such as CCleaner, Steam games, and Notepad++, allowing hackers to distribute malware through legitimate updates. The introduction of artificial intelligence has accelerated the frequency and sophistication of these attacks, with hackers compromising developers or exploiting third-party tools to inject malicious code. Notepad++ was specifically affected by a supply-chain attack where a compromised third-party tool led to the distribution of tainted software. Attackers use various strategies, including hacking developers' credentials, purchasing access, or compromising tools relied upon by developers. Antivirus software is crucial for protecting users from malware, even from trusted sources, as modern solutions have minimal impact on system performance.

AppWizard

April 17, 2026

This Android Setting Makes It Easy to Manage All Your App Permissions

In Android devices, users can manage app permissions through a privacy dashboard located in Settings > Security & Privacy > Privacy > Permission manager. This includes permissions for the camera, microphone, location, and more. Users can specify access levels for these features, including allowing access all the time, only while using the app, or not at all. Special permissions, which allow apps to modify system settings or access sensitive data, require particular attention and can be reviewed in Settings > Apps > Special app access. Caution is advised for apps from outside the Google Play Store, as they may pose greater risks. Regular audits of app permissions are recommended to ensure that apps do not have more access than necessary.

Winsage

April 4, 2026

Windows 11’s April update packs 8 (mostly) meaningful improvements you won’t want to skip. Here’s what you’ll be getting.

Microsoft will begin rolling out the April 2026 Security Update for Windows 11 on April 14, 2026. This update includes significant changes such as: 1. Smart App Control (SAC) can now be managed without reinstalling the operating system, allowing users to toggle it on or off via Windows Security. 2. Windows Narrator has been enhanced to generate AI-based image descriptions, available to users on a Microsoft 365 Family plan. 3. The pen settings page will include an option to configure the "Same as Copilot key" feature. 4. File Explorer will receive updates including the ability to use Voice Typing for renaming files and fixes for various bugs. 5. The update supports display refresh rates of 1000Hz or higher, improves auto-rotation functionality, and enhances HDR performance for certain displays.