antivirus programs Archives

Tech Optimizer

December 3, 2025

Wacatac Trojan: What Is It And How To Remove It

The Wacatac Trojan is a type of malware first documented in January 2020, known for disguising itself as benign software to trick users into installation. It operates under various aliases, including Trojan:Script/Wacatac and Trojan:Win32/Wacatac, and can connect to Command-and-Control (C2) servers for remote manipulation. Its capabilities include stealing credentials, evading antivirus detection, creating or joining botnets, causing system damage, enabling spyware functions, acting as Remote Access Tools (RATs), and downloading additional malware. Symptoms of infection include sluggish performance, program failures, unexplained storage reductions, and unfamiliar processes. Wacatac spreads through unofficial software, malicious web pages, and phishing emails. Removal is best achieved using reputable antivirus software, while prevention involves avoiding questionable downloads, practicing good digital hygiene, keeping software updated, backing up data, and using quality antivirus solutions. False positives can occur, where legitimate programs are mistakenly flagged as Wacatac.

Tech Optimizer

December 3, 2025

Fileless protection explained: Blocking the invisible threat others miss

Fileless malware operates within a computer's active memory, avoiding detection by traditional antivirus solutions that rely on file scanning. It uses legitimate tools like PowerShell to execute harmful commands without creating files, making it difficult to identify. Cybercriminals can use fileless malware for various malicious activities, including data theft and cryptocurrency mining. Malwarebytes combats fileless attacks through two defense layers: Script Monitoring, which intercepts potentially dangerous scripts at execution, and Command-Line Protection, which scrutinizes command-line tools for suspicious activities. Examples of fileless attacks include malicious email attachments activating PowerShell to download ransomware, hidden JavaScript on websites mining cryptocurrency, and attackers using Windows Management Instrumentation (WMI) to create backdoors. Malwarebytes' Fileless Protection operates automatically in the background, ensuring legitimate applications function normally while monitoring for threats. It is part of a comprehensive security framework that includes machine-learning detection and web protection, designed to stop attacks that do not write files. This protection is included with Malwarebytes Premium, aimed at safeguarding personal and small business systems.

Tech Optimizer

December 2, 2025

Is Antivirus Software Enough? What It Can (and Can’t) Protect You From

Malware remains a significant threat, with DanaBot targeting Windows devices and a new strain of Android malware capable of stealing debit card information. Nearly three-quarters of Americans have experienced online attacks, highlighting the importance of antivirus software for digital security. Antivirus software can protect against various threats, including malware, ransomware, Trojans, spyware, and adware, but it cannot prevent social engineering attacks, physical theft, zero-day exploits, or vulnerabilities from outdated software. Regular updates and additional security measures are necessary for comprehensive protection.

Winsage

November 26, 2025

Your Windows 11 upgrade not working? Try my 5 favorite troubleshooting tricks

When upgrading to Windows 11 on older hardware, users may encounter frustrating error codes and messages. To resolve upgrade issues, it is recommended to: 1. Ensure all necessary driver and firmware/BIOS updates are installed, as many users have found success after addressing these updates. 2. Check Microsoft's Windows release information dashboard for known issues related to the upgrade, as there may be temporary compatibility blocks that can be bypassed by updating or uninstalling incompatible software. 3. Restart the upgrade process after checking for pending updates, uninstalling unnecessary software, and disconnecting non-essential peripherals. Selecting "Not right now" for update downloads can help minimize complications. 4. Search for specific error codes and messages online, using reliable sources like Reddit or Microsoft for potential solutions. 5. Utilize the SetupDiag tool to analyze Windows log files for detailed reports on upgrade failures, which can help identify the causes of issues. This involves downloading the tool, creating a specific folder, and running commands in an elevated command prompt to generate a readable report.

Tech Optimizer

November 26, 2025

We’ve tested the best antivirus software to protect your computer and these are the 6 we recommend

Norton 360 Deluxe is recognized as the best overall antivirus software, offering a user-friendly interface, minimal performance impact, and robust malware protection. Bitdefender Total Security is noted for its comprehensive features, while McAfee+ Ultimate is recommended for families with multiple devices. Other notable antivirus solutions include Microsoft Defender as the best free option, Avast Premium for banking security, and Malwarebytes Plus as a budget-friendly choice. When selecting antivirus software, consider effectiveness, system impact, compatibility with devices, desired features, and budget. Free antivirus options like Microsoft Defender provide basic protection, while paid versions offer advanced features and support. Antivirus software works by scanning for malicious code and blocking threats, and it is essential for safeguarding against evolving cyber threats.

Tech Optimizer

November 24, 2025

Ditching Antivirus: Why One Tech Writer’s PC Got Safer Without It

A writer from MakeUseOf uninstalled all third-party antivirus programs from his Windows PC and found that the system performed better and appeared more secure with Microsoft’s built-in Windows Defender. The experiment highlighted Defender's effectiveness, showing fewer false positives, improved performance, and no noticeable decline in protection. Independent tests ranked Defender highly in real-world protection, and it achieved perfect scores in recent AV-TEST evaluations. The removal of third-party antivirus software led to a significant decrease in CPU and RAM usage, with idle consumption dropping from 15-20% to under 5%. Despite 121 million Americans still using third-party tools, there is growing consideration for Defender due to its free and efficient nature. While Defender excels in many areas, experts caution that it may not fully protect against zero-day vulnerabilities, and layered defenses are still recommended. The antivirus market may face disruption as integrated protection becomes more common, and user feedback indicates a preference for free alternatives that match or exceed the performance of paid solutions.

Tech Optimizer

November 20, 2025

Windows Has Another Hidden Malware Scanner Tool – How and When to Use It

Microsoft Defender is the primary security tool for Windows systems, while the Malicious Software Removal Tool (MSRT) serves as an additional defense against malware. MSRT is updated monthly through Windows updates and operates in Quiet Mode, targeting common malware infections such as trojans, rootkits, and worms. It enhances its capabilities with each update by adding new malware families and removing outdated ones. MSRT not only eliminates infections but also aims to reverse any damage caused by malware. MSRT is beneficial in several scenarios: it can be used alongside third-party antivirus programs to enhance security, it can undo changes made by malware, and it remains effective even when other security tools are compromised. By default, MSRT runs monthly but can also be initiated on demand by typing "mrt" in the Run dialog. Users can choose from Quick, Full, or Customized scans, and the tool automatically addresses any detected infections. After scanning, a report detailing the findings is available for review.

Tech Optimizer

November 20, 2025

Why Your Apple Device Isn’t as Invincible as You Think

Many Apple users believe that their devices are nearly impervious to malware and cyber threats, but this is a misconception. While macOS has built-in protections like Gatekeeper and XProtect, no system is completely foolproof. Cybercriminals are increasingly targeting Macs, and users can fall victim to phishing schemes, ransomware, and other malware. Antivirus software for Mac provides an additional layer of defense, detecting malware and blocking phishing attempts. It can also protect sensitive information and offer features like secure browsing and Wi-Fi protection. Regular software updates and cautious behavior are essential for security, but relying solely on these measures is risky. Integrating antivirus into security routines is a practical step to minimize risks.

Tech Optimizer

November 16, 2025

Best VPN With Antivirus in 2025

NordVPN features an innovative Threat Protection Pro that scans downloaded files for threats, assesses applications for vulnerabilities, blocks malicious websites, and reduces intrusive ads and trackers. It is the first VPN to receive AV-Comparatives’ anti-phishing certification, but it lacks full antivirus capabilities like system scans and malware removal. The feature is included in the Plus, Complete, and Prime subscription tiers for Windows and Mac users, with specific pricing structures for each tier. NordVPN is noted for its speed, extensive server network in 126 countries, and strong privacy features. Norton Secure VPN, while user-friendly, has issues such as IPv6 leaks, excessive data collection, and concerns related to its US jurisdiction. It has slower speeds, a limited server network, and lacks Linux support. Norton is working on improvements, including support for various streaming devices, but alternatives may provide better privacy features and performance.

Tech Optimizer

November 13, 2025

Antivirus is dead. Or is it?

Lukas Pelser from Sophos discusses the complex relationship users have with antivirus software, often seen as necessary but criticized as bloatware due to frequent notifications. The legacy of John McAfee influences public perception of antivirus solutions. While some believe digital safety relies on common sense, this approach is inadequate in corporate environments where security practices may be lax. Antivirus software has evolved since the 1970s from detecting known malware to struggling against sophisticated cybercriminal tactics. This evolution highlights the need for businesses to update their cybersecurity strategies to address shifting threats effectively.