In August 2026, a new loader designated 2CLoader was identified being used to distribute information stealers including Vidar and Remus, along with XWorm RAT. The loader implements extensive anti-analysis capabilities including anti-VM, anti-debug, and user activity checks. It employs sophisticated evasion techniques such as indirect system calls using Hell's Gate technique and inline trampoline hooks to bypass endpoint security detection. The loader stores its configuration and encrypted payload as a PE resource, using rolling XOR and AES-GCM encryption for payload protection. It supports multiple payload execution methods including RunPE, LoadPE, and CLR hosting for .NET assemblies. Network communication with command-and-control servers uses HTTP POST requests with JSON formatted messages encrypted via XOR. Multiple persistence mechanisms are available through registry keys, scheduled tasks, and startup folders.
Threat actors are recompiling open source software, specifically the 7zip self-extracting archive stub, to embed a reflective loader that evades detection. The malicious code is inserted into the ExtractArchive function of the 7zip SFX module, making it difficult for analysts to identify since they typically focus on configuration files and embedded executables rather than the decompression stub itself. Samples are validly signed by Animated Productions, LLC and contain legitimate installers like foobar2000. The loader beacons to C2 servers, downloads DLLs, and reflectively loads encrypted payloads. Variants also abuse other open source libraries like the NSIS plugin EmbedHtml. Files feature bloated certificates and suspicious characteristics including installers wrapped within installers, requiring persistent analysis to uncover the hidden malicious functionality.
A sophisticated ClickFix campaign variant uses social engineering to trick victims into executing commands via the Windows Run dialog. The technique leverages rundll32.exe to load remote non-DLL payloads by ordinal export #1 over WebDAV connections tunneled through HTTPS port 443. Multiple incidents at a single organization show evolving obfuscation methods including WMI process spawning, caret insertion, and runtime string assembly to evade detection. The attack chain utilizes trusted Windows binaries like pcalua.exe to break process lineage tracking. No files are dropped to disk, and payloads are invoked by ordinal rather than named functions. Successful attacks exfiltrated browser credentials and sensitive documents totaling 13MB. The most obfuscated variant evaded automated EDR detection entirely, being discovered only through proactive threat hunting focused on ordinal execution patterns rather than keyword detection.
GhostSocks is an emerging threat that turns compromised devices into residential proxy nodes, enabling attackers to evade detection. Originally marketed on Russian underground forums as Malware-as-a-Service, it has gained popularity due to its partnership with Lumma Stealer. Written in GoLang, GhostSocks uses SOCKS5 proxy protocol and TLS encryption to blend malicious traffic into normal network activity. It also incorporates backdoor functionality for running arbitrary commands and deploying additional payloads. Darktrace observed an increase in GhostSocks activity, detecting it alongside Lumma Stealer in customer networks. The malware's versatility in converting devices into proxy nodes while enabling covert network access illustrates how threat actors maximize the value of compromised infrastructure.
Operation DualScript is a sophisticated multi-stage malware campaign targeting cryptocurrency and financial activities. It utilizes Windows Scheduled Tasks, VBScript launchers, and PowerShell execution to maintain persistence while minimizing disk artifacts. The attack operates through two parallel chains: a web-based PowerShell loader deploying a cryptocurrency clipboard hijacker, and a secondary chain executing the RetroRAT implant in memory. RetroRAT monitors user activity, captures keystrokes, and tracks interactions with financial services to harvest sensitive information. The malware employs various anti-analysis techniques and establishes a command-and-control channel for remote access and data exfiltration. This campaign highlights the growing abuse of trusted system utilities and in-memory execution techniques to evade traditional detection mechanisms.
A fake website impersonating Avast antivirus is tricking users into infecting their computers with Venom Stealer malware. The site runs a fake virus scan, claims to find threats, and prompts users to download a malicious file disguised as a system cleaner. The malware, identified as part of the Venom Stealer family, steals browser credentials, session cookies, cryptocurrency wallets, and other sensitive data. It uses evasion techniques like direct system calls and debugger checks to avoid detection. The stolen information is exfiltrated to a command-and-control server disguised as an analytics service. This campaign demonstrates a classic scare-and-fix scam, exploiting users' trust in reputable security brands to deliver malware.
A sophisticated malware campaign delivering PureLog Stealer has been identified, targeting healthcare, government, hospitality, and education sectors in multiple countries. The attack uses localized copyright violation lures to trick victims into executing a multi-stage infection chain. The malware employs encrypted payloads, remote key retrieval, and fileless execution techniques to evade detection. It utilizes a Python-based loader and dual .NET loaders to run PureLog Stealer entirely in memory. The campaign incorporates AMSI bypass, registry persistence, screenshot capture, and victim fingerprinting for stealth and intelligence gathering. Evidence confirms communication with PureLog-associated infrastructure.
A novel and stealthy threat called Infostealer.Speagle has been discovered, hijacking the functionality of Cobra DocGuard, a legitimate security software. This malware collects sensitive information from infected computers and transmits it to a compromised Cobra DocGuard server, masking the data exfiltration as legitimate communications. Speagle specifically targets computers with Cobra DocGuard installed and has shown capabilities to search for documents related to Chinese ballistic missiles. The infection vector remains unknown, but there are indications of a possible supply chain attack. The malware collects system information, file listings, and browser data in multiple phases, using sophisticated techniques to evade detection and self-delete after completing its tasks.
A sophisticated phishing campaign is targeting users of the newly-launched Pudgy World browser game, exploiting the game's requirement to connect cryptocurrency wallets. The fake site mimics the official game's appearance and wallet connection process, presenting convincing forgeries of 11 different wallet interfaces to steal credentials. The attack employs advanced evasion techniques to avoid detection by security researchers and sandboxes. It capitalizes on the excitement around the game's launch and users' unfamiliarity with Web3 onboarding processes. The campaign demonstrates a high level of technical sophistication, potentially indicating the use of a commercial phishing kit designed for crypto-related attacks.
A sophisticated cyber attack campaign combines social engineering and advanced malware techniques. Attackers pose as IT support to gain initial access, then deploy a modified version of the Havoc C2 framework. The malware uses DLL sideloading, indirect syscalls, and custom loaders to evade detection. After compromising the initial system, the attackers rapidly move laterally, establishing persistence through scheduled tasks and legitimate remote monitoring tools. The campaign demonstrates a blend of human-centric initial access methods and advanced technical evasion techniques, highlighting the need for comprehensive security measures spanning user awareness and technical controls.
Tycoon2FA emerged as a prominent phishing-as-a-service platform in August 2023, enabling large-scale campaigns targeting over 500,000 organizations monthly. Developed by Storm-1747, it provided adversary-in-the-middle capabilities to bypass multifactor authentication. The kit allowed impersonation of trusted brands like Microsoft 365 and Gmail, intercepting session cookies and credentials. It employed sophisticated evasion techniques including anti-bot screening, browser fingerprinting, and custom CAPTCHAs. Tycoon2FA's infrastructure evolved to use diverse, short-lived domains and complex redirect chains. Its success stemmed from closely mimicking legitimate authentication processes while covertly intercepting user credentials and session tokens.
This analysis examines the evolution of Remcos, a Remote Access Trojan that has become a significant global threat. Originally a commercial tool, Remcos now provides attackers with capabilities such as credential theft, keylogging, screen capture, and webcam control. The latest variant exhibits real-time command-and-control communication, enabling immediate surveillance. The malware uses sophisticated techniques like dynamic API resolution, encrypted configurations, and modular plugins to evade detection. It establishes persistence through registry modifications and employs cleanup routines to remove traces of its activity. The report details Remcos' infection vectors, data exfiltration methods, and its network interactions with command-and-control servers.
In mid-2025, a malicious driver file was discovered on Asian computer systems, signed with a compromised digital certificate. This driver injects a backdoor Trojan and protects malicious files, processes, and registry keys. The final payload is a new variant of the ToneShell backdoor, associated with the HoneyMyte APT group. The attacks, which began in February 2025, primarily target government organizations in Southeast and East Asia, especially Myanmar and Thailand. The malware uses various techniques to evade detection, including API obfuscation, process protection, and registry key protection. The ToneShell backdoor communicates with command-and-control servers using fake TLS headers and supports remote operations such as file transfer and shell access.
The BlackForce phishing kit, first seen in August 2025, is a sophisticated phishing toolkit designed to steal credentials and bypass multi-factor authentication (MFA) using Man-in-the-Browser (MitB) attacks. It impersonates popular brands, leveraging advanced evasion techniques such as blocklists for security vendors and web crawlers to avoid detection. The kit uses a dual-channel communication setup, separating phishing servers from Telegram-based data drops, enabling real-time alerts to attackers. Its attack chain includes user validation, credential capture, and session management via a command-and-control panel. Rapid version updates indicate active development to enhance resilience and evade defenses. The kit targets users through multiple phishing domains, many mimicking streaming services, suggesting a broad attack surface. European organizations face risks from credential theft and MFA bypass, potentially leading to unauthorized access and data breaches. Mitigation requires targeted detection of phishing domains, enhanced user awareness, and monitoring of Telegram-based communications. Countries with high streaming service usage and digital service adoption, such as Spain, Germany, and the UK, are likely most affected.
Albiriox is a newly discovered Android RAT malware offered as Malware-as-a-Service, primarily targeting financial and cryptocurrency applications globally. It uses a sophisticated two-stage deployment involving dropper apps and packing to evade detection. The malware enables remote control of infected devices via VNC-based access and overlay attacks, allowing real-time interaction and unauthorized operations such as screen manipulation and device takeover. It targets over 400 financial and crypto wallet apps, facilitating on-device fraud while remaining stealthy. The MaaS model and ongoing development indicate potential rapid spread among cybercriminals. Although no known exploits in the wild are reported yet, its advanced capabilities pose a significant threat to mobile users, especially in finance sectors. The malware is linked to Russian-speaking threat actors and uses multiple fake domains for distribution. European organizations with mobile banking and crypto wallet users are at risk, particularly in countries with high Android usage and financial sector prominence. Mitigation requires targeted detection of dropper apps, user education on app sources, and enhanced mobile endpoint protection. Given its impact on confidentiality, integrity, and availability with ease of exploitation and no user interaction needed post-installation, the threat severity is assessed as high.
Lumma Stealer malware has resurged since October 2025, now incorporating adaptive browser fingerprinting to enhance its command-and-control (C&C) operations. It collects detailed system, network, hardware, and browser information via JavaScript payloads and stealthy HTTP communications, enabling it to assess victim environments and evade detection. The malware continues to use process injection and maintains its core C&C communication structure while adding these new evasion and targeting capabilities. This hybrid approach improves operational continuity, targeting precision, and detection avoidance. Although no known exploits are currently reported in the wild, the malware’s stealth and data exfiltration capabilities pose a medium-level threat. European organizations should be aware of this evolving infostealer, especially those with high-value data and browser-based workflows. Mitigation requires advanced endpoint detection, network monitoring for stealthy HTTP traffic, and browser security hardening. Countries with significant digital economies and high adoption of targeted software are at greater risk.
Olymp Loader is a recently emerged Malware-as-a-Service offering advertised on underground forums since June 2025. Developed by a team called OLYMPO, it's written in assembly language and marketed as fully undetectable. The loader executes other malware on victim systems and provides built-in stealer modules for browsers, Telegram, and crypto wallets. It enables rapid feature updates and fast adoption by cybercriminals. The malware has evolved from an initial botnet concept to focus on loader and crypter functionalities. Distribution methods include disguising as legitimate software and using other malware like Amadey as initial access. Post-infection payloads primarily include credential stealers and remote access tools.
This analysis focuses on a new variant of Lumma Stealer, a malware that reemerged after a brief hiatus following a law enforcement operation. The article details the malware's code obfuscation, evasion techniques, and persistence mechanisms. It describes Netskope's machine learning-based detection approach, which utilizes a Cloud Sandbox enhanced with ML models to analyze runtime behavior, process trees, and other features. The specific sample analyzed is an NSIS installer file that abuses AutoIt for malicious purposes. The malware employs various anti-analysis techniques and establishes persistence through the Windows Startup folder. Netskope's multi-layered threat protection system successfully detected this Lumma Stealer variant.
A new malware loader named CountLoader has been identified, strongly associated with Russian ransomware gangs. It comes in three versions: .NET, PowerShell, and JScript. The threat is believed to be part of an Initial Access Broker's toolset or used by a ransomware affiliate linked to LockBit, BlackBasta, and Qilin groups. CountLoader was recently employed in a phishing campaign targeting Ukrainian citizens, impersonating the Ukrainian police. The loader attempts to connect to multiple C2 servers, downloads and executes various malware payloads, and uses advanced techniques to evade detection. It has been observed dropping CobaltStrike and AdaptixC2, among other malicious tools. The malware's functionality includes system information gathering, persistence mechanisms, and multiple download methods.
SmokeLoader, a modular malware loader active since 2011, has resurfaced with new versions in 2025 after Operation Endgame suppressed its activity. The latest variants, 2025 alpha and 2025, include bug fixes and improvements to evade detection. Key changes include a new mutex check in the stager, modified mutex name generation, and updates to the main module. The network protocol has been slightly adjusted in version 2025, and the scheduled task name for persistence has been updated. These versions fix performance issues and include additional anti-analysis measures. Despite efforts to dismantle it, SmokeLoader continues to evolve and is used by multiple threat groups.
