trojan Archives

Tech Optimizer

July 24, 2026

Microsoft steps in after LG monitors were found auto-installing apps with McAfee ads

McAfee's reputation has declined from being a trusted antivirus software during the MS-DOS era to facing user backlash against its advertising practices. The advertising partnership between LG and McAfee has ended following Microsoft's intervention, which prompted LG to remove McAfee promotions from its Windows Store app. This controversy arose when users reported that the "LG Monitor App Installer," automatically installed with new LG monitors, displayed McAfee promotions. Microsoft and LG aim to enhance the Windows ecosystem and improve customer software experiences. Several LG monitor models were identified as having inadvertently installed the app. The automatic installation feature used by LG is also employed by other companies, indicating a trend in the industry that raises concerns about user experience and promotional strategies.

AppWizard

July 23, 2026

Active Exploitation Alert: Fake Bahrain Alert App Deploys Advanced Android Surveillance Malware Targeting Gulf Region Users

A cyber-espionage campaign has been identified involving a counterfeit Bahrain Alert Android application designed to surveil individuals in Bahrain and the Gulf region. The app masquerades as an official civil defense tool and employs social engineering tactics to compromise Android devices, extract sensitive data, and maintain remote access. It targets high-value individuals such as activists and journalists, particularly during civil unrest and missile alerts, leveraging trusted government branding to increase infection rates. The malware features a complex, multi-stage architecture with advanced evasion techniques and is distributed through phishing links and malicious websites. It initiates a four-stage infection process, ultimately installing a remote access trojan (RAT) that enables covert surveillance and encrypted communications. The malware can monitor device activity, capture credentials, and intercept communications, while also employing mechanisms to avoid detection and maintain persistence. The campaign primarily targets Bahraini citizens, exploiting fear during crises to encourage app installation. Although there are indications of Russian-speaking developers involved, there is no definitive attribution to a specific nation-state or APT group. Mitigation strategies include monitoring for suspicious app installations, user education on verifying app authenticity, and blocking known malicious domains.

Tech Optimizer

July 18, 2026

North Korea Buried Four-Stage Malware in Flag Images: Zero Antivirus Detections

North Korea's Contagious Interview hackers have been using a deceptive strategy to target developers by posing as recruiters and embedding malware in SVG files. Elastic Security Labs discovered that the attackers hid malicious payloads within HTML comment blocks of these files, allowing the malware to evade antivirus detection. At the time of the findings, no antivirus engines flagged the compromised repositories, which included trojanized GitHub repositories disguised as coding challenges. The malware executed automatically at server startup and deployed four modules: a browser credential and cryptocurrency wallet stealer, a file stealer, a remote access Trojan, and a clipboard monitor. The campaign, tracked as REF9403, is part of the ongoing Contagious Interview operation attributed to North Korea's Lazarus Group, which aims to generate revenue through cryptocurrency theft. Developers are advised to audit any projects run from unsolicited sources and to monitor specific domains associated with the attack.

Tech Optimizer

July 10, 2026

I tested Norton Antivirus on my PC – and it found a hidden Trojan in 15 minutes

Norton Antivirus is a well-regarded malware protection tool, consistently ranking among the top in the industry with a robust suite of security features. It has a user-friendly interface similar to Malwarebytes, but intrusive upselling tactics detract from usability. Norton offers comprehensive scanning tools, including Quick Scan, Full Scan, Smart Scan, Targeted Scan, and Startup Scan, which successfully detected a Trojan missed by other antivirus software. Its Scam Protection tools provide alerts for online scams and phishing attempts, and it includes unique features like Deepfake Protection and an AI assistant named Genie. According to MRG Effitas, Norton blocked 98% of malware samples with a 0.33% miss rate, achieving a Level 2 certification. Pricing includes several plans, with Norton 360 Deluxe offering the best value at an introductory price of .99 for the first year, rising to .99 annually. Despite its strengths, the intrusive upselling makes it less recommendable compared to Malwarebytes, although it has unique capabilities in threat detection and a comprehensive suite of security tools.

Tech Optimizer

July 10, 2026

Hackers Use Fake VLC Executable and Malicious libvlc.dll to Deploy ValleyRAT

Cybercriminals are exploiting the VLC media player to install ValleyRAT, a remote access trojan, by embedding malware in a seemingly harmless file linked in phishing emails. The attack starts with an email that prompts the victim to download a ZIP archive containing a fake VLC executable and a malicious DLL named libvlc.dll. This method uses DLL sideloading to execute the malware under the guise of a legitimate application. Once executed, the malware establishes persistence by creating a registry entry and connects to a remote server to retrieve the final payload. ValleyRAT employs evasion tactics to avoid detection, including assessing system characteristics before executing harmful actions and using a fileless approach to deliver the payload directly into memory. Researchers have identified indicators of compromise, including specific SHA1 hashes and URLs associated with the malicious campaign.

Winsage

July 8, 2026

Trojanized LetsVPN installer gives attackers remote access to Windows PCs

A malware campaign has been discovered that exploits the VPN service LetsVPN. Researchers from ThreatLocker found a malicious Windows installer that pretends to be the legitimate LetsVPN application while deploying a remote access trojan (RAT) called GoodPersonRAT. The malware allows attackers to control infected systems using stealth techniques. The malicious installer first deploys the RAT and then installs the authentic LetsVPN application, creating an illusion of legitimacy. The package identified as Kuailian_win-setup.86.msi contains the legitimate LetsVPN installer, a loader, and an encrypted payload. GoodPersonRAT features include remote desktop control, file upload/download, command execution, proxying, keylogging, and clipboard monitoring. It specifically targets Telegram Desktop users by archiving critical account information and altering proxy settings. The malware ensures persistence through Windows services and scheduled tasks and can undermine security software. The LetsVPN installer is legitimate and signed, but the MSI package is unsigned and contains malicious components. Users are advised to download software only from official sources and verify digital signatures.

AppWizard

July 5, 2026

Android users warned about fake app stealing bank details

A malicious application posing as a document reader has been downloaded over 100,000 times and installs the Anatsa banking trojan on Android devices. This app has bypassed Google's security checks and remains available on the Play Store. The Anatsa Trojan is designed to steal sensitive financial information by monitoring users' banking apps and intercepting login processes through a fake overlay that mimics legitimate interfaces. It requests extensive permissions, allowing it to observe screens, capture keystrokes, and interact with the device. Users are advised to review installed applications and monitor bank statements for unauthorized activity.

Tech Optimizer

July 3, 2026

Hackers Use Fake VLC Executable and Malicious libvlc.dll to Deploy ValleyRAT

Cybercriminals are using a sophisticated method to bypass security measures by embedding malware within the VLC media player. This campaign exploits VLC to install ValleyRAT, a remote access trojan, through phishing emails that contain links to download a seemingly harmless file. Once the file is opened, it activates a hidden backdoor that evades detection by antivirus solutions. The malware has been active since 2023, with a significant increase in activity noted through 2025 and into 2026, particularly targeting Chinese and Japanese-speaking users. The infection process begins when a victim clicks a link in a phishing email, leading to a ZIP archive containing a disguised executable and a malicious DLL (libvlc.dll). The executable mimics a legitimate VLC file, and when executed, it loads the DLL, allowing the malware to run under the guise of VLC. The malware establishes persistence by creating a registry entry and connects to a remote server to retrieve the final payload. ValleyRAT employs evasion tactics to avoid detection, such as performing checks on system behavior and using a fileless approach to inject its payload directly into memory, avoiding storage on disk. Researchers recommend training employees to recognize suspicious filenames and deploying endpoint detection tools to identify DLL sideloading behavior. For organizations affected by this campaign, isolating compromised systems and reviewing security logs are critical initial steps. Indicators of compromise include a malicious email domain, a ZIP archive containing a fake VLC executable, and a download URL for ValleyRAT.

Winsage

June 27, 2026

New Millenium RAT version infects 62,000 Windows systems worldwide

A significant evolution of the Millenium remote access trojan (RAT) has impacted over 62,000 Windows devices across more than 160 countries. The latest version, 4.*, marks a departure from previous .NET-based versions and is attributed to a threat cluster known as Y2K Operators, with the creator identified as “ShinyEnigma.” There are 62,289 infected endpoints, with 39,730 infections occurring in the first quarter of 2026. The RAT is marketed as malware-as-a-service (MaaS) and promoted through underground forums and platforms like GitHub, with accessible pricing. Millenium RAT 4 is developed in native C++ and uses the Telegram Bot API for command-and-control communications. Its capabilities include stealing browser data, collecting system information, logging keystrokes, capturing screenshots and audio, accessing Telegram and Discord data, downloading additional payloads, and executing Windows or PowerShell commands. The malware ensures persistence by replicating itself in the %APPDATA% directory and creating an autorun registry entry. The malware is distributed through social engineering tactics such as cracked software, cryptocurrency utilities, hacking toolkits, OSINT tools, exploit builders, and Roblox-related cheats. Some campaigns have trojanized malware builders, infecting cybercriminals. One campaign used PDF-themed lures with a malicious Windows shortcut to download the RAT while displaying a legitimate document. Payloads often use filenames associated with Windows components or security software to blend into infected systems. Group-IB recommends avoiding untrusted executables, applying security updates, enabling multi-factor authentication, and monitoring for unusual autorun registry entries.

AppWizard

June 26, 2026

I’ve played countless Doom engine games, so believe me when I say this one that combines the FPS with JRPG combat might be the coolest one in 30 years

End of Starchild is a free standalone game developed by Em Essex, notable for its unique levels and aesthetic diversity. It features beautifully animated title cards, impactful weaponry, and an exploration-focused gameplay experience with hidden secrets and a challenging super-boss. The game takes approximately 15 hours to complete and is recommended for both Doom fans and newcomers, with adjustable difficulty settings available. Some virus scanners may mistakenly flag the game as containing a trojan, but this has been identified as a false positive.