malware
Russian hackers abuse Hyper-V to hide malware in Linux VMs
The Russian hacker group Curly COMrades is abusing Microsoft Hyper-V in Windows to bypass endpoint detection and response solutions by creating a hidden Alpine Linux-based virtual machine to run malware. Inside the virtual environment, the threat actor hosted its custom tools, the CurlyShell reverse shell and the CurlCat reverse proxy, which enabled operational stealth and communication. […]
Fake Solidity VSCode extension on Open VSX backdoors developers
A remote access trojan dubbed SleepyDuck, and disguised as the well-known Solidity extension in the Open VSX open-source registry, uses an Ethereum smart contract to establish a communication channel with the attacker. Open VSX is a community-driven registry for extensions compatible with VS Code, which are popular with AI-powered integrated development environments (IDEs) like Cursor and Windsurf. […]
Microsoft: SesameOp malware abuses OpenAI Assistants API in attacks
Microsoft security researchers have discovered a new backdoor malware that uses the OpenAI Assistants API as a covert command-and-control channel. The company’s Detection and Response Team (DART) discovered the new malware, named SesameOp, during an investigation into a July 2025 cyberattack, which revealed that the malware allowed attackers to gain persistent access to the compromised […]
Alleged Meduza Stealer malware admins arrested after hacking Russian org
The Russian authorities have arrested three individuals in Moscow who are believed to be the creators and operators of the Meduza Stealer information-stealing malware. The action was announced on Telegram by Irina Volk, a police general and official from the Russian Ministry of Internal Affairs. “A group of hackers who created the infamous ‘Meduza’ virus have been […]
Massive surge of NFC relay malware steals Europeans’ credit cards
Near-Field Communication (NFC) relay malware has grown massively popular in Eastern Europe, with researchers discovering over 760 malicious Android apps using the technique to steal people’s payment card information in the past few months. Contrary to the traditional banking trojans that use overlays to steal banking credentials or remote access tools to perform fraudulent transactions, […]
Malicious NPM packages fetch infostealer for Windows, Linux, macOS
Ten malicious packages mimicking legitimate software projects in the npm registry download an information-stealing component that collects sensitive data from Windows, Linux, and macOS systems. The packages were uploaded to npm on July 4, and remained undetected for a long period due to multiple layers of obfuscation that helped escape standard static analysis mechanisms. According to researchers at […]
New Atroposia malware comes with a local vulnerability scanner
A new malware-as-a-service (MaaS) platform named Atroposia provides cybercriminals a remote access trojan that combines capabilities for persistent access, evasion, data theft, and local vulnerability scanning. The malware is available for a $200 monthly subscription that unlocks advanced features such as hidden remote desktop, file system control, data exfiltration, clipboard theft, credential theft, cryptocurrency wallet theft, […]
New Herodotus Android malware fakes human typing to avoid detection
A new Android malware family, Herodotus, uses random delay injection in its input routines to mimic human behavior on mobile devices and evade timing-based detection by security software. Herodotus, according to Threat Fabric, is offered as a malware-as-a-service (MaaS) to financially motivated cybercriminals, believed to be the same operators behind Brokewell. Although the malware is still […]
Hackers steal Discord accounts with RedTiger-based infostealer
Attackers are using the open-source red-team tool RedTiger to build an infostealer that collects Discord account data and payment information. The malware can also steal credentials stored in the browser, cryptocurrency wallet data, and game accounts. RedTiger is a Python-based penetration testing suite for Windows and Linux that bundles options for scanning networks and cracking […]
Vidar Stealer 2.0 adds multi-threaded data theft, better evasion
Security researchers are warning that Vidar Stealer infections are likely to increase after the malware developer released a new major version with upgraded capabilities. According to an announcement from the developer this month, Vidar 2.0 has been rewritten in C, supports multi-threading data stealing, bypasses Chrome’s app-bound encryption, and features more advanced evasion mechanisms. Infostealer […]