malware infection Archives

Tech Optimizer

April 15, 2025

Steps to Scan Your Computer for Free and Check for Viruses and Malware

Windows Security, previously known as Windows Defender, is a built-in security tool in Windows 10 and 11 that provides comprehensive protection against viruses and malware without requiring additional software. Users can perform manual scans, including Quick, Full, and Custom scans, to identify and eliminate threats. To run a scan, users must open Windows Security, navigate to "Virus & threat protection," and select the desired scan option. Windows Security also includes features such as real-time protection, firewall and network protection, app and browser control, device security, and account protection. It is essential to keep Windows Security updated with the latest virus definitions for optimal protection. Users can also schedule automatic scans for regular checks.

Winsage

February 13, 2025

Russian Hackers Leverages Weaponized Microsoft KMS to Hack Windows Systems

The Russian state-sponsored hacking group Sandworm, affiliated with the GRU, has been using pirated Microsoft Key Management Service (KMS) activation tools to infiltrate Ukrainian Windows systems since late 2023. They distribute a harmful ZIP file named “KMSAuto++x64_v1.8.4.zip” on torrent platforms, which, when executed, deploys the BACKORDER loader and disables Windows Defender. The BACKORDER loader then downloads the Dark Crystal Remote Access Trojan (DcRAT) from attacker-controlled domains, allowing data theft, including keystrokes and browser credentials. The campaign exploits Ukraine's high prevalence of unlicensed software, estimated at 70% in the public sector, increasing vulnerability to cyberattacks. Researchers have linked this activity to Sandworm through shared infrastructure and tactics, highlighting its role in Russia's hybrid warfare strategy against Ukraine. Cybersecurity experts recommend avoiding pirated software and implementing robust security measures to mitigate these threats.

Tech Optimizer

February 11, 2025

Essential tips to protect your computer from malware

Malware includes various types of malicious software such as viruses, worms, Trojans, ransomware, and spyware. Email attachments and links are common methods for malware distribution, with cybercriminals often disguising malicious files as legitimate communications. Regular software updates are essential for protecting against security vulnerabilities. Pirated software frequently contains malware and poses risks to computer security. Installing antivirus and antimalware software is crucial for defense against attacks, with recommendations for programs like Windows Defender and Malwarebytes. Encrypting sensitive data can prevent unauthorized access, and maintaining cloud backups is vital for data recovery in case of ransomware attacks. Using a Virtual Private Network (VPN) is recommended when accessing the internet on public networks to protect personal information. Users should monitor their devices for suspicious activity, such as system slowdowns or unexpected pop-ups, and conduct malware scans if symptoms arise.

Winsage

November 3, 2024

When these 9 problems happen, I know it’s to reinstall Windows 11

Users of Windows 11 may experience performance issues that indicate a need for reinstallation. Key indicators include: 1. Significant performance drops due to accumulated applications, storage issues, or malware. 2. Frequent crashes and freezes that persist despite troubleshooting. 3. Regular system errors suggesting instability. 4. Corrupted system files identified by tools like System File Checker (SFC) or DISM. 5. New hardware installations that require a clean installation for optimal compatibility. 6. Startup issues that do not improve with disabling startup programs. 7. Malware infections that may necessitate a complete reinstallation. 8. System instability after major changes like new drivers or modifications. 9. Failed troubleshooting attempts that consume more time than productive use of the system. Reinstallation methods include: - Using Windows Update to reinstall while preserving files, settings, and applications. - Resetting the PC to keep files while removing apps and settings. - Removing everything for a clean installation, requiring restoration of files and reinstallation of applications. For severe issues, creating a bootable USB may be necessary.

Winsage

September 27, 2024

Microsoft to launch delayed Recall feature following security controversy

Microsoft is set to launch its Recall feature for Windows 11, which captures screenshots of user actions for later retrieval. The feature had been delayed due to security concerns raised by researchers regarding potential vulnerabilities. Microsoft has since enhanced security measures, including making Recall an opt-in feature, implementing encryption for screenshots, and requiring authentication through Windows Hello. Recall will also integrate Microsoft’s Purview software to prevent the capture of sensitive information. Users can control what Recall captures, with options to exclude certain applications and disable the feature entirely. Microsoft conducted extensive security reviews to validate these measures, and Recall is a key feature of the Copilot+ PCs running the latest Windows 11 version.

Winsage

August 28, 2024

Why Your Windows PC Wakes Up From Sleep Mode By Itself (And How To Stop It) – SlashGear

Your Windows PC may wake up from sleep mode unexpectedly due to several factors, including the "wake timers" feature, network activities like "Wake on LAN," USB devices triggering wake-ups, and specific power management settings. To identify the source of these wake-ups, users can execute the command "powercfg -lastwake" in Command Prompt. If a device is causing disturbances, users can disable its ability to wake the computer through Device Manager. The Automatic Maintenance feature can also wake the system, which can be adjusted by unchecking "Allow scheduled maintenance to wake up my computer." Disabling "wake timers" can prevent scheduled tasks from waking the PC. Users can manage Windows updates by setting active hours to dictate when updates should not wake the system. If issues persist, running a scan for malware may be necessary.

Winsage

August 26, 2024

ValleyRAT Malware Attack Windows Systems Using Weaponised Microsoft Office Doc

Researchers at ANY.RUN have identified a cyberattack targeting Chinese-speaking users, utilizing a multi-stage malware called ValleyRAT. This malware infiltrates systems to establish persistent backdoors for monitoring and controlling compromised devices. ValleyRAT deploys additional plugins that can lead to data exfiltration, ransomware incidents, or botnet formation. The attack, first detected in June 2024, uses malicious emails with URLs linking to executables containing ValleyRAT, which evades detection by executing in memory. ValleyRAT maintains persistence and escalates privileges on compromised systems, allowing unauthorized access to sensitive information. The attack begins with a malicious executable that drops a decoy document and connects to a command-and-control (C2) server to download components like RuntimeBroker and RemoteShellcode. These components help achieve persistence and administrative privileges by exploiting vulnerabilities in legitimate binaries. The malware specifically targets Chinese applications by scanning the Windows Registry for related keys. RemoteShellcode downloads the ValleyRAT payload, granting attackers remote control over the system. ValleyRAT's capabilities include remote code execution, screenshot capture, file management, and loading additional plugins. ANY.RUN's sandbox analysis revealed that MSBuild.exe was executing a file in the Temp directory, indicating obfuscated malicious activity. Detection rules from Suricata IDS suggest attempts to communicate with a C2 server, pointing to potential malware infection.

AppWizard

August 13, 2024

Terrifying Android ‘spy app’ hides itself on your phone and records screen

Cybersecurity experts have identified a mobile spyware application called LianSpy, which targets Android smartphones by stealing confidential data and monitoring user activities while concealing itself on the home screen. Discovered in March 2024, LianSpy has been operational for at least three years, primarily affecting users in Russia but potentially impacting Android users globally. It requires user interaction for full activation, requesting permissions under the guise of legitimate applications. LianSpy can operate with root privileges, allowing it to bypass notifications about microphone or camera usage. Signs of infection on Android devices include being signed out of accounts, persistent pop-up ads, alerts about viruses, decreased device speed, and unexpected changes to browser settings. Users are advised to conduct regular spyware sweeps and keep their operating systems updated to mitigate risks.

Winsage

August 9, 2024

The 7 deadliest Windows sins: Don’t break your PC!

Users should be cautious with optimization software like CCleaner, as it can lead to data loss and security vulnerabilities. Tools that disable system services, such as Tiny11, Atlas, and ReviOS, can cause instability and compatibility issues. Installing too many programs can clutter the system and slow performance; users should regularly review and uninstall unnecessary applications. Disabling Windows security features, such as the firewall and malware protection, increases exposure to cyber threats. Installing software from unverified sources poses a risk of malware infection. Overclocking CPUs without sufficient cooling can damage hardware and void warranties. Additional practices to avoid include altering system files, deactivating automatic updates, changing registry entries manually, giving default user accounts administrator rights, defragmenting SSDs, using unauthorized hardware or drivers, assigning excessive access rights, disabling system restore, neglecting backups, and installing unchecked add-ons and extensions.

Winsage

July 30, 2024

Why you should never connect a Windows XP PC to the internet

Windows XP, released in 2001, has not received significant updates since 2014, leading to increased security vulnerabilities. YouTuber Eric Parker conducted an experiment by connecting a Windows XP machine to the internet, resulting in the detection of malware within minutes, even without visiting any websites. He recorded eight instances of malware, including four Trojans, and noted that a new administrator account was created, allowing remote control of the system. Parker conducted the test without antivirus software or an intermediate router, highlighting that the Windows Firewall alone was insufficient for protection against cyber threats. He advised that such experiments should only be done in controlled environments to avoid exposing vulnerable systems to the internet.