malware campaign Archives

Winsage

April 13, 2026

Stealthy Malware Campaign Uses Fake Windows Update Site To Infect PCs

A new malware campaign targets Windows users by using a fraudulent clone of a Microsoft website to steal sensitive information. Victims are directed to a typo-squatted web address that resembles an official site, where they are prompted to download a file named WindowsUpdate 1.0.0.msi. This file uses a legitimate open-source installer framework and incorporates Electron, JavaScript, and Python, making it difficult to detect; VirusTotal showed zero detections across 69 engines. The malware maintains persistence by modifying the Windows registry and placing a shortcut named Spotify.lnk in the startup folder. Currently, the campaign primarily targets French-speaking users, but similar tactics may spread to other regions. Users are advised to apply updates only through the Windows Update feature in the Settings menu.

AppWizard

April 7, 2026

Researchers find 50 ‘dangerous’ Android apps that are secretly hijacking phones: Who is at risk

Recent findings from McAfee have revealed a malware campaign named Operation NoVoice that has infiltrated over 50 applications on the Google Play Store, which collectively received over 2.3 million downloads before being removed. The malware uses a rootkit attack strategy to gain administrator-level control of Android devices while remaining undetected. Affected apps appeared benign, performing tasks like cleaning files or managing photos, but were secretly communicating with a remote server to send device information. This allowed attackers to deploy custom exploit code, achieving root-level access and posing significant security risks. The malware persists even after factory resets, potentially requiring firmware reinstallation for complete removal. Users with older or unpatched Android versions are at greater risk, as well as anyone who downloaded the compromised apps.

Winsage

April 4, 2026

WhatsApp Malware Campaign Uses VBS to Hijack Windows

Microsoft has identified a cyberattack campaign that uses WhatsApp messages to distribute malicious Visual Basic Script (VBS) files targeting Windows systems. First detected in late February 2026, the campaign employs social engineering to trick users into executing the VBS files, which then create hidden directories and disguise themselves as legitimate Windows utilities. The malware downloads additional payloads from cloud platforms like AWS, Tencent Cloud, and Backblaze B2 to establish persistence and escalate privileges. It can bypass User Account Control (UAC), alter registry settings, and install malicious MSI packages, including remote access tools like AnyDesk, to maintain continuous access for attackers.

AppWizard

March 13, 2026

FBI Investigating After Malware Found Lurking in Steam PC Games

The FBI is investigating malware hidden in several video games on the Steam platform, targeting users from May 2024 to January 2026. The investigation includes games like BlockBlasters, Chemia, Dashverse, DashFPS, Lampy, Lunara, PirateFi, and Tokenova, with some previously removed from Steam for malicious content. Steam had over 132 million monthly active users and more than 117,000 games in 2025. The FBI is reaching out to affected gamers, ensuring victim confidentiality and potential eligibility for services under federal and state law. This incident is part of a broader trend of malware targeting gamers, with previous cases involving fan games and cheat software affecting millions of accounts.

Tech Optimizer

February 24, 2026

Fake Huorong Site Delivers ValleyRAT Backdoor in Targeted Malware Campaign

A cyber operation is targeting users of Huorong Security antivirus software through a typosquatted domain, huoronga[.]com, which mimics the legitimate site huorong.cn. Users who mistakenly visit the counterfeit site may download a file named BR火绒445[.]zip, which contains a trojanized installer that leads to the installation of ValleyRAT, a remote access trojan. The malware employs various techniques to evade detection, including using an intermediary domain for downloads, creating Windows Defender exclusions, and establishing a scheduled task for persistence. The backdoor facilitates activities such as keylogging and credential access while disguising its operations within legitimate processes like rundll32.exe. Attribution points to the Silver Fox APT group, and there has been a significant increase in ValleyRAT samples documented in recent months. Security measures include ensuring software downloads are from the official site and monitoring for specific malicious activities.

Winsage

February 20, 2026

Facebook ads spread fake Windows 11 downloads that steal passwords and crypto wallets

Attackers are using social media advertising, specifically paid Facebook ads, to promote a malware campaign disguised as legitimate Microsoft promotions. They create near-exact replicas of the official Windows 11 download page to lure users into downloading malicious software. The deceptive domains used include ms-25h2-download[.]pro and ms-25h2-update[.]pro. The malware campaign employs geofencing to selectively target victims, redirecting security researchers to benign sites while delivering malware to unsuspecting users. The malicious file, named ms-update32.exe, is hosted on GitHub and mimics the size of a legitimate Windows installer. Once executed, it checks for monitoring tools and, if none are detected, installs an application named "Lunar" that collects sensitive data, including cryptocurrency wallet information. The malware maintains persistence by writing data to the Windows registry and employs various obfuscation techniques to evade detection. The attackers run parallel ad campaigns with different Facebook Pixel IDs to ensure continued operation even if one is suspended. Indicators of compromise include specific file hashes, domains, file system artifacts, and registry keys associated with the malware.

TrendTechie

February 12, 2026

Хакеры начали активно распространять стилеры на торрентах через популярные игры

Cybersecurity specialists have identified a long-running malware campaign that disguises itself as installers for pirated games, utilizing a malicious component called the RenEngine Loader. This loader operates stealthily, embedding itself within the system while allowing the game to run without disruption, thus evading detection. The campaign has been active since at least April 2025 and primarily targets popular titles from Electronic Arts and Ubisoft, such as Far Cry, FIFA, Need for Speed, and Assassin’s Creed. The malicious code appears as a harmless launcher based on Ren’Py, leading users to believe the installation is normal. Once installed, the loader can facilitate further exploits without immediate data exfiltration. Telemetry has recorded over 400,000 inquiries related to this distribution chain, with an average detection rate of around 5,000 incidents per day, and Russia ranks fourth in these observations.

Tech Optimizer

February 11, 2026

Hackers Used Hugging Face to Distribute Android Banking Trojans

Cybersecurity researchers have identified a malware campaign that exploited Hugging Face's AI infrastructure to distribute Android banking trojans. The attackers used a deceptive app called TrustBastion, which tricked users into installing what appeared to be legitimate security software. Upon installation, the app redirected users to an encrypted endpoint that linked to Hugging Face repositories, allowing the malware to evade traditional security measures. The campaign generated new malware variants every 15 minutes, resulting in over 6,000 commits in about 29 days. It infected thousands of victims globally, particularly in regions with high smartphone banking usage but lower mobile security awareness. The operation is believed to be linked to an established cybercriminal group. Security experts warn that this incident highlights vulnerabilities in trusted platforms and calls for improved security measures, including behavioral analysis systems and verification of application authenticity. The incident has also sparked discussions about the need for enhanced security protocols for AI platforms.

Winsage

January 7, 2026

Hackers Use Fake Windows BSOD To Spread Malware

Security researchers have identified a social engineering campaign that mimics the Windows Blue Screen of Death (BSOD) to deceive users into installing a remote access Trojan (RAT). The campaign, named PHALT#BLYX, begins with phishing emails that appear to be legitimate cancellation notices from travel websites, leading victims to a fake login page and an interactive CAPTCHA. This culminates in a full-screen imitation of the BSOD, prompting users to follow instructions that ultimately allow attackers to gain control of their computers. The attackers use a “ClickFix” process that involves executing commands through native Windows tools like PowerShell and MSBuild, making detection more challenging. The malware delivered is an obfuscated version of DCRat, which provides attackers with remote control capabilities, keylogging, and the ability to download additional malware. The campaign primarily targets hotels and hospitality businesses in Europe, exploiting the urgency of front-desk staff to respond to apparent technical issues. Indicators of a fake BSOD include the ability to interact with the screen, requests to execute commands via Windows tools, and the presence of CAPTCHA prompts. Organizations are advised to train employees, implement application control, enhance email and web defenses, and prepare for incident response to mitigate risks associated with such attacks.

AppWizard

December 18, 2025

Kimsuky Spreads DocSwap Android Malware via QR Phishing Posing as Delivery App

A new Android malware campaign has been launched by the North Korean threat actor Kimsuky, introducing a variant called DocSwap. This malware is distributed via QR codes on phishing websites that impersonate CJ Logistics. Attackers use QR codes and notification pop-ups to lure victims into downloading the malware, which decrypts an embedded APK and activates Remote Access Trojan (RAT) capabilities. The malicious app is disguised as a legitimate application to bypass Android's security measures. Victims are tricked into installing the app through smishing texts or phishing emails that mimic delivery companies. The app downloads an APK named "SecDelivery.apk," which then loads the malware. It requests permissions to access various device functions and registers a service that simulates an OTP authentication screen. The app connects to an attacker-controlled server, allowing execution of commands such as logging keystrokes, capturing audio, and gathering sensitive information. Additionally, two other malicious samples have been identified, disguised as a P2B Airdrop app and a trojanized version of the BYCOM VPN app. The campaign also includes phishing sites mimicking popular South Korean platforms to capture user credentials.