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Silver Fox uses adware to distribute ValleyRAT backdoor
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.
silver Android smartphone
Tech Optimizer
September 4, 2026

Microsoft Confirms False “Defender Antivirus Turned Off” Alerts Spreading Across Windows Devices

Microsoft has acknowledged a software bug in its Windows operating system that causes misleading pop-up notifications, indicating that antivirus protection is disabled. These alerts began appearing after the latest Microsoft Defender Antivirus updates, despite the antivirus functioning correctly. The notifications can occur at startup and intermittently, and cannot be silenced through standard notification controls. The issue affects various versions of Windows and Windows Server with the latest Defender updates. Microsoft is working on a resolution, but no timeline has been provided. Users are advised to verify their antivirus status through the Windows Security app and can ignore the notifications if real-time protection is confirmed as active.
NordVPN's Next-Gen Antivirus scores 94% in independent phishing and malware testing
Tech Optimizer
September 4, 2026

NordVPN’s Next-Gen Antivirus scores 94% in independent phishing and malware testing

NordVPN's next-generation antivirus achieved a 94% phishing detection rate in an anti-phishing test by AV-Comparatives, ranking third among nine products, behind Avast One Free Antivirus and Norton Antivirus Plus, both at 96%. The evaluation tested 250 live phishing URLs and recorded zero false positives for NordVPN, unlike competitors such as Malwarebytes Premium and Webroot SecureAnywhere. The two-percentage-point difference between NordVPN and the leaders corresponds to five URLs. Other products like Dr. Web Security Space and K7 Total Security had lower detection rates of 57% and 70%, respectively. Previously, NordVPN's Threat Protection Pro had an 83.42% detection rate across 3,209 links, outperforming IPVanish. In June 2024, NordVPN became the first VPN provider to earn AV-Comparatives' anti-phishing protection badge, requiring a minimum detection rate of 85% with zero false alarms. The antivirus feature is available on Plus plans and higher, previously known as Threat Protection Pro, and is included in Plus, Complete, and Prime tiers.
I4C warns against malicious Android apps from social media ads
AppWizard
September 4, 2026

I4C warns against malicious Android apps from social media ads

The Indian Cyber Crime Coordination Centre (I4C) has issued an advisory about malicious Android applications disguised as adult-content apps, which are promoted through social media and distributed outside official app stores. The National Cybercrime Threat Analytics Unit (NCTAU) warned that these apps can compromise mobile device security by requesting sensitive permissions and may install additional software without user consent, leading to unauthorized financial transactions. Users are advised to download apps only from trusted sources like the Google Play Store, avoid installing APK files from unverified sources, and refrain from granting accessibility permissions to untrusted applications. Recommendations include regularly reviewing installed apps, keeping Google Play Protect enabled, and monitoring bank accounts for unauthorized activities. Victims of cyber fraud are encouraged to report incidents via the national cybercrime helpline or the government’s reporting portal.
Microsoft warns fake CAPTCHA is tricking Windows users into running malware
Winsage
September 4, 2026

Microsoft warns fake CAPTCHA is tricking Windows users into running malware

Microsoft has identified a new malware campaign called TerminalFix that uses fake CAPTCHA prompts to trick Windows users into executing malicious commands. This campaign is a variation of ClickFix attacks and employs deceptive pages that impersonate reputable services like Cloudflare. Instead of traditional CAPTCHA challenges, users are instructed to open PowerShell or Command Prompt and paste in commands, allowing attackers to execute complex scripts more easily. TerminalFix initiates a multi-stage intrusion, granting attackers persistent proxy access to the infected machine, which can lead to further exploitation of the company's network. The campaign relies on social engineering tactics, requiring user compliance with counterfeit verification instructions. Microsoft has released mitigation guidance, recommending restrictions on PowerShell access, monitoring for DLL sideloading, blocking outdated Flash plugins, and enabling cloud-delivered protection in Microsoft Defender Antivirus. The campaign poses significant risks to enterprise networks, but individual users should also be cautious about executing commands requested by websites.
Fake porn apps that can hijack your Android phone
AppWizard
September 3, 2026

Fake porn apps that can hijack your Android phone

The National Cybercrime Threat Analytics Unit (NCTAU) has reported a rise in financial fraud linked to deceptive Android applications that pose as pornography apps. These apps are advertised on social media platforms like Facebook and Instagram under names such as ‘Night Play’, ‘Reloop’, ‘Kyss’, ‘Vimo’, ‘Rivo’, ‘Nexo’, and ‘Vixa’. Users who click on these ads are redirected to websites promising adult content, where they are encouraged to download APK files. Once installed, these apps often request sensitive permissions, particularly Accessibility access, which can allow malware to take control of the device and facilitate financial fraud. Some malicious apps may also install a VPN, rerouting internet traffic through servers controlled by attackers and exposing sensitive data. The malware is primarily promoted through ads linked to pornographic content, redirecting users to phishing websites that prompt APK downloads from non-Google Play sources, often using the “.live” domain extension. After installation, the initial app may download a second malicious package disguised as an update, exploiting the permissions granted to the original app.
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