keylogging Archives

Winsage

August 14, 2026

APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit

CoolClient is a sophisticated backdoor family linked to the HoneyMyte APT group, actively used in cyber-espionage campaigns targeting organizations in Asia and Russia since its initial disclosure in 2022. It has capabilities such as keylogging, clipboard theft, credential harvesting, and system reconnaissance. Investigations in 2023 revealed enhancements, including clipboard theft and HTTP traffic interception. By late 2025 and into 2026, a variant was noted that could deploy a signed kernel-mode driver as a Windows service, improving its stealth and operational capabilities. In a recent campaign targeting Myanmar, the HoneyMyte group used PlugX to deploy CoolClient components. They configured Microsoft Defender to exclude a fake Windows Defender installation directory and a renamed executable, defender.exe, to avoid detection. Persistence was achieved through a scheduled task that executed defender.exe with SYSTEM privileges at startup, which sideloaded the malicious libngs.dll to initiate the CoolClient execution chain. The latest CoolClient variant has a multi-stage execution chain, including: - defender.exe / Sang.exe: Exploited legitimate application for DLL sideloading. - libsrapc.dll: Benign dependency for the Sangfor application. - libngs.dll: First-stage loader that decrypts and loads the next stage. - loadcert.ini: Second-stage DLL implementing core functionalities. - cert.ini: Final-stage implant for command and control communication. - time.ini: Configuration file for CoolClient. The execution begins with the legitimate Sangfor application loading libngs.dll, which uses obfuscation to conceal its operations. The second stage, loadcert.ini, is injected into synchost.exe and performs tasks including persistence and process injection. The kernel-mode driver deployment routine involves decrypting time.ini, verifying privileges, and creating a service to execute the driver, enhancing stealth. The deployed kernel-mode driver, msagent.sys, is digitally signed and helps hide processes, files, and registry objects, making detection more difficult. The latest variant continues to target organizations consistent with previous HoneyMyte activities, with confirmed victims in Myanmar, Mongolia, Pakistan, and Russia, including government entities. The deployment of CoolClient as a secondary backdoor after a PlugX infection indicates a strategic approach to maintain access to compromised systems. The malware is confirmed as a new variant of CoolClient associated with the HoneyMyte threat group, with the kernel-mode driver marking a significant advancement in its capabilities.

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

June 4, 2026

Teens are using $5 WeedHack malware to target Minecraft players

A recent cybersecurity analysis from McAfee Labs has revealed a malware campaign involving WeedHack, which has garnered over 116,000 hits and is accumulating 2,000 to 3,000 malicious hits daily. WeedHack is marketed as malware-as-a-service (MaaS) and is accessible on the internet, allowing individuals with minimal technical skills to use it for harmful activities. A dedicated Telegram channel for WeedHack has over 850 members, many of whom are teenagers and young adults using the malware for cyberbullying. The malware spreads primarily through YouTube videos promoting Minecraft mods, which often conceal the WeedHack malware. Additionally, bad actors use SEO poisoning tactics to elevate fake websites posing as legitimate Minecraft clients. McAfee lists several legitimate clients targeted by WeedHack, including Meteor Client, Radium Client, and Wurst Client. For an additional fee, attackers can access premium features like webcam access, keylogging, and file management. McAfee advises players to be cautious when downloading mods and to seek help from trusted adults if approached by individuals claiming to have compromised their systems.

AppWizard

June 3, 2026

Fake Minecraft Mods Infect 116K Systems With WeedHack Malware

A malware campaign named WeedHack has impacted over 116,000 Minecraft players since its inception earlier this year, according to a report from McAfee. Cybercriminals are using SEO poisoning to exploit gamers searching for mods, particularly targeting those hosted on GitHub and creating deceptive web pages that mimic official mod sites. Notable affected projects include Meteor Client, Radium Client, Wurst Client, Aristois, LiquidBounce, and Impact Client. Attackers also produce polished YouTube videos to promote malware, with comments guiding viewers on installation and links to malicious sites. The malware operates in two tiers: a free tier that steals cookies and passwords, targets crypto wallets, captures screenshots, and extracts credentials, and a premium tier that offers advanced capabilities like webcam control and keylogging for a monthly fee. The accessibility of such malware is concerning, prompting Minecraft users to be cautious when searching for and installing mods.

AppWizard

June 3, 2026

Fake ‘Minecraft’ Mods Bring Malware to as Many as 116,000 Players

The "Minecraft" community is facing a cybersecurity threat from a malware operation called WeedHack, which disguises itself as fake mods to lure players into downloading it. This operation, run by a teenager, has affected over 116,000 players and uses social engineering tactics to distribute malicious mods, cheats, and clients. WeedHack spreads through trusted channels, including YouTube, and employs search engine optimization poisoning to mislead users. The malware operates by disseminating malicious Java Archive files that appear legitimate, compromising devices to extract sensitive information such as session IDs, browser cookies, and cryptocurrency wallet data. It can also steal credentials for applications like Discord, Steam, and Telegram, and includes remote control features for surveillance and keylogging. Approximately 2,000 new infections occur daily, primarily affecting users in the United States, Germany, India, the United Kingdom, and Italy. The low cost of access to this malware has led to its use by teenagers for online bullying and harassment.

AppWizard

May 11, 2026

New TrickMo Variant: Device Take Over malware targeting Banking, Fintech, Wallet & Auth apps

Modern Android banking malware is evolving with architectural enhancements for increased stealth, resilience, and operational flexibility. In early 2026, a new variant of the TrickMo Android banking trojan was identified, actively targeting banking and wallet users in France, Italy, and Austria. This variant has replaced its predecessor in ongoing campaigns and has transitioned its command-and-control traffic to The Open Network (TON). Key features of the new TrickMo variant include: - The primary command-and-control channel now operates over TON, utilizing .adnl endpoints through an embedded local TON proxy. - It employs a runtime-loaded APK (dex.module) with enhanced functionalities, including reconnaissance, SSH tunneling, and SOCKS5 proxying, allowing infected devices to act as network pivots. - TrickMo is classified as Device Take Over (DTO) malware, targeting banking, fintech, wallet, and authenticator applications on Android devices. - Operators gain control over infected devices through accessibility-service permissions, enabling capabilities such as credential phishing, keylogging, screen recording, remote control, and SMS interception. The new variant features a modular architecture with a host APK functioning as a launcher and persistence layer, while offensive capabilities are delivered through the dynamically loaded dex.module. Significant enhancements include network reconnaissance commands (curl, dnslookup, ping, telnet, traceroute) and socket-level tunneling via an embedded SSH client. Indicators of compromise include specific SHA-256 hashes and package names associated with TrickMo dropper applications and host applications. The malware retains unused permissions for NFC capabilities, suggesting a strategic approach to device filtering.

AppWizard

April 17, 2026

New RecruitRat, SaferRat, Astrinox, Massiv Android Malware Found Targeting 800 Apps

Cybersecurity researchers from Zimperium zLabs have identified four families of Android malware—RecruitRat, SaferRat, Astrinox, and Massiv—targeting banking and cryptocurrency applications. These malware families can extract sensitive information from over 800 applications. They primarily use phishing and smishing to lure users into downloading malicious software. Phishing involves creating fake websites resembling legitimate login pages, while smishing uses urgent text messages with links to download harmful payloads. RecruitRat targets job seekers with fake employment websites, and SaferRat promises free access to premium video services. Astrinox mimics a business tool and has been linked to a fraudulent Apple App Store page, while Massiv's distribution methods remain unclear. Once installed, these malware applications initiate Overlay attacks, displaying counterfeit screens to capture user credentials. They also use a "blindfold" technique to obscure their activities by overlaying static images on the user's screen. The malware can intercept security codes, capture one-time passwords, and employ keylogging techniques. RecruitRat has a library of over 700 counterfeit login pages that activate with targeted apps. Researchers recommend avoiding links in urgent messages and downloading apps only from official sources.

Winsage

April 6, 2026

ResokerRAT Hijacks Telegram API to Command Infected Windows PCs

A newly discovered Windows malware called ResokerRAT uses Telegram’s Bot API for its command-and-control operations, allowing it to monitor and manipulate infected systems without a conventional server. It obscures its communications by integrating with legitimate Telegram traffic, complicating detection. Upon execution, it creates a mutex to ensure only one instance runs and checks for debuggers to avoid analysis. It attempts to relaunch with elevated privileges and logs failures to its operator. ResokerRAT terminates known monitoring tools and installs a global keyboard hook to obstruct defensive key combinations. It operates through text-based commands sent via Telegram, allowing it to check processes, take screenshots, and modify system settings to evade detection. Persistence is achieved by adding itself to startup and altering UAC settings. The malware retrieves additional payloads from specified URLs and uses URL-encoded data for communication. Researchers have confirmed its Telegram traffic, and its behavior aligns with various MITRE ATT&CK techniques. Security teams are advised to monitor for unusual Telegram traffic and scrutinize registry keys related to startup and UAC.

AppWizard

March 19, 2026

New Android malware hiding in streaming apps to spy on users’ personal notes

Researchers have discovered a sophisticated malware called Perseus that targets Android users by disguising itself within television streaming applications to steal sensitive information, including passwords and banking details. This malware, reported by ThreatFabric, primarily affects users in Turkey and Italy and is based on the leaked code of previous Android banking trojans, particularly Cerberus. Perseus masquerades as IPTV service apps, often downloaded from unofficial sources, and employs overlay attacks and keylogging techniques to capture user credentials. It specifically targets personal note-taking applications like Google Keep, Evernote, and Simple Notes to extract sensitive information stored within them. The malware landscape is evolving, with new threats like the banking trojan Herodotus and the Crocodilus variant, which can manipulate contact lists. Users are advised to be cautious when downloading applications from unofficial sources.

AppWizard

March 11, 2026

New BeatBanker Android malware poses as Starlink app to hijack devices

A newly identified Android malware called BeatBanker disguises itself as a Starlink application on fake Google Play Store websites. It functions as a banking trojan and includes Monero mining capabilities, allowing it to steal credentials and manipulate cryptocurrency transactions. Researchers at Kaspersky traced BeatBanker to campaigns targeting users in Brazil. The latest version uses the BTMOB RAT for remote access, enabling keylogging, screen recording, camera access, GPS tracking, and credential capture. BeatBanker is distributed as an APK file that decrypts and loads hidden code into memory, conducting environment checks before activation. It presents a fake Play Store update screen to trick users into granting permissions for additional payloads. To avoid detection, it delays malicious operations and plays a nearly inaudible MP3 file to maintain persistent activity. The malware uses a modified version of the XMRig miner to mine Monero on Android devices, connecting to mining pools through encrypted TLS connections. It can start or stop mining based on device conditions and uses Firebase Cloud Messaging to relay device information to its command-and-control server. Currently, BeatBanker infections have only been observed in Brazil, but there are concerns about its potential spread. Users are advised to avoid side-loading APKs from untrusted sources and to review app permissions regularly.