Injection Archives

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.

Winsage

February 15, 2026

Microsoft Blocks Credential Autofill to Fix Windows Hello Flaw

Microsoft has blocked credential autofill functionality in Windows 11 as part of the February 2026 Patch Tuesday updates to address the critical vulnerability CVE-2026-20804, which allows unauthorized access by tampering with Windows Hello authentication. This vulnerability was first identified in August 2025 and allows local administrators to inject biometric data. The restriction was documented in the January 2026 Patch Tuesday release notes. Enhanced Sign-in Security (ESS) operates at a hypervisor virtual trust level but is limited by hardware compatibility issues, particularly affecting AMD-based systems. Post-update, credential dialogs do not respond to virtual keyboard inputs from remote desktop or screen-sharing applications, preventing autofill during remote support sessions. Microsoft has provided a risky workaround that allows applications to operate with elevated administrator privileges, but this reintroduces the vulnerability. Organizations must now choose between disrupted remote support workflows or risking exposure to credential injection attacks, leading to operational challenges for IT teams and help desk staff.

Winsage

February 11, 2026

Patch Tuesday, February 2026 Edition

Microsoft has released updates addressing over 50 vulnerabilities in its Windows operating systems and applications, including six critical zero-day vulnerabilities. 1. CVE-2026-21510: A security feature bypass in Windows Shell that allows execution of malicious content via a single click on a link, affecting all supported Windows versions. 2. CVE-2026-21513: Targets MSHTML, the web browser engine in Windows. 3. CVE-2026-21514: A security feature bypass in Microsoft Word. 4. CVE-2026-21533: Allows local attackers to gain SYSTEM level access in Windows Remote Desktop Services. 5. CVE-2026-21519: An elevation of privilege flaw in the Desktop Window Manager (DWM). 6. CVE-2026-21525: A potential denial-of-service threat in the Windows Remote Access Connection Manager. Additionally, the updates include fixes for remote code execution vulnerabilities affecting GitHub Copilot and various IDEs, specifically CVE-2026-21516, CVE-2026-21523, and CVE-2026-21256, which arise from a command injection flaw. Security experts emphasize the importance of safeguarding developers due to their access to sensitive data and recommend applying least-privilege principles.

AppWizard

February 10, 2026

Google Translate’s latest upgrade surprised everyone by turning into a chatbot

Google Translate’s new AI-powered Advanced mode can engage in conversation rather than just translating text due to "prompt injection," which causes the model to struggle with distinguishing between translation requests and instructions. Users have found that this mode, based on a Gemini-based large language model, can respond to inquiries rather than providing straightforward translations. The older Classic mode remains a reliable option for consistent translations without unexpected interactions.

Winsage

January 16, 2026

Easterly helms RSAC, Windows update problems, Police Copilot gaffe

Jen Easterly has been appointed as the new Chief Executive Officer of the RSA Conference. She is a cybersecurity expert and former Director of the Cybersecurity and Infrastructure Security Agency (CISA). Palo Alto Networks has released security updates for a vulnerability (CVE-2026-0227) with a CVSS score of 7.7 affecting its GlobalProtect Gateway and Portal, which can cause a denial-of-service condition in PAN-OS software. The January 2026 security update from Microsoft has caused connection and authentication failures in Azure Virtual Desktop and Windows 365, affecting users across various Windows versions. Microsoft is working on a resolution. The chief constable of West Midlands Police acknowledged an error by Microsoft’s Copilot AI in generating a fictional intelligence report. Microsoft has not confirmed Copilot's involvement. Britain’s National Cyber Security Centre (NCSC) has collaborated with Five Eyes partners to provide guidance on securing industrial operational technology, highlighting risks associated with remotely monitored systems. Kyowon, a South Korean conglomerate, confirmed a ransomware attack on January 10 that may have compromised customer information, affecting approximately 5.5 million members. Researchers at Varonis have identified a new attack technique called "Reprompt" that allows data exfiltration from Microsoft Copilot via a malicious link, exploiting a Parameter 2 Prompt (P2P) injection technique. Central Maine Healthcare is notifying over 145,000 patients about a data breach that compromised personal, treatment, and health insurance information, discovered on June 1.

Tech Optimizer

January 12, 2026

Trend Micro releases critical security fixes for Apex Central RCE

Trend Micro has addressed a security vulnerability in its Apex Central platform, identified as CVE-2025-69258, which allowed unauthenticated DLL injection and remote code execution. The company released Critical Patch Build 7190 to fix this vulnerability and two others, CVE-2025-69259 and CVE-2025-69260. Organizations are urged to implement the patch immediately, as temporary mitigations are deemed insufficient for long-term security. Apex Central is a self-hosted platform for managing Trend Micro's security products.

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.

Tech Optimizer

January 7, 2026

Fake error popups are spreading malware fast

A new cybercrime tool called ErrTraffic has emerged, simplifying malware dissemination through deceptive fake error messages that prompt users to address non-existent issues. The attacks begin on compromised websites, where users encounter distorted text and pop-ups suggesting a browser update or font installation. Clicking the provided button copies a command to the clipboard, instructing users to paste it into PowerShell, which triggers the malware infection. ErrTraffic automates this process, requiring minimal investment for attackers to access a control panel and scripted payload delivery. It operates via JavaScript injection, adapting to the user's operating system and browser to display tailored messages. This method effectively bypasses traditional malware defenses, achieving high conversion rates, with nearly 60% of users following through with the instructions. Infected devices may deploy infostealers or banking trojans, with the system designed to evade law enforcement by excluding certain regions. To mitigate risks, users should avoid copying commands from websites, trust built-in update notifications, use robust antivirus software, and regularly remove personal information from data broker sites.

Tech Optimizer

January 6, 2026

How to speed up mass data inserts in PostgreSQL when using Spring

A common task in enterprise systems involves loading large volumes of data into PostgreSQL, which can be slow if using a loop in Java that calls the save() method for each record. Initial tests show that a basic insert operation takes over 10 minutes. Hibernate retains every object in the session-level cache until the transaction concludes, leading to high memory consumption. Enabling batching with the jdbc.batch_size setting improves performance by about 23%, but high memory usage persists. Application-side caching of IDs is faster than database-side caching, achieving a 30% performance gain. Using saveAll() results in minimal improvement as it still calls save() in a loop. Enabling reWriteBatchedInserts in the JDBC driver allows for multi-row inserts, reducing operation time to 4 minutes and 37 seconds. Clearing the session-level cache with EntityManager further optimizes memory usage, resulting in an 18-second time gain. Setting order_inserts=true enhances batching efficiency. With all optimizations, insertion time is reduced to 4 minutes and 19 seconds. A custom data insertion layer can be created to generate INSERT statements, with reflection being a straightforward but not optimal method. Prepared statements improve performance and security, with an efficient batch size of 5,000 records. PostgreSQL's COPY command facilitates faster bulk data transfers than multi-row inserts. Integrating COPY with Spring transactions enhances performance, and parallelizing the insertion process with a ThreadPoolExecutor significantly improves speed and memory usage.