Pierluigi Paganini
March 24, 2025
Medusa ransomware uses a malicious Windows driver ABYSSWORKER to disable security tools, making detection and mitigation more difficult. Elastic Security Labs tracked a financially driven MEDUSA ransomware campaign using a HEARTCRYPT-packed loader and a revoked certificate-signed driver, ABYSSWORKER, to disable EDR tools. The attackers used a 64-bit Windows PE driver named smuol.sys, disguised as a […]
Pierluigi Paganini
March 24, 2025
The FBI warns of a significant increase in scams involving free online document converters to infect users with malware. The FBI warns that threat actors use malicious online document converters to steal usersâ sensitive information and infect their systems with malware. “The FBI Denver Field Office is warning that agents are increasingly seeing a scam […]
Pierluigi Paganini
March 24, 2025
The Cloak ransomware group claims responsibility for a cyberattack on the Virginia Attorney Generalâs Office that occurred in February. The ransomware group Cloak has claimed responsibility for a February cyberattack on the Virginia Attorney General Office. A cyberattack on the Virginia Attorney Generalâs Office forced officials to shut down IT systems, including email and VPN, […]
Pierluigi Paganini
March 23, 2025
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Decrypting Encrypted files from Akira Ransomware (Linux/ESXI variant 2024) using a bunch of GPUs Jaguar Land Rover Breached by HELLCAT Ransomware Group Using Its Infostealer PlaybookâThen a Second Hacker Strikes ClearFakeâs New Widespread Variant: Increased Web3 […]
Pierluigi Paganini
March 23, 2025
A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. U.S. Treasury removed sanctions against the crypto mixer service Tornado Cash Zero-day broker Operation Zero offers up to […]
Pierluigi Paganini
March 21, 2025
Symantec researchers linked a custom backdoor, called Betruger, found in recent ransomware attacks to an affiliate of the RansomHub operation. Symantec’s Threat Hunter team has identified a custom backdoor, named Betruger, linked to a RansomHub affiliate. Designed for ransomware attacks, Betruger combines multiple functions into a single tool to minimize detection. It enables screenshot capture, […]
Pierluigi Paganini
March 20, 2025
A data breach at the Pennsylvania State Education Association exposed the personal information of over 500,000 individuals. The Pennsylvania State Education Association (PSEA) suffered a data breach that impacted 517,487 individuals. PSEA is a labor union representing teachers, education support professionals, and other school employees in Pennsylvania. It advocates for public education, negotiates contracts, and […]
Pierluigi Paganini
March 19, 2025
California Cryobank, the largest US sperm bank, suffered a data breach exposing customer information. California Cryobank (CCB) is the largest sperm bank in the U.S., providing frozen donor sperm and reproductive services, including egg and embryo storage. It operates in all 50 states and over 30 countries worldwide, helping individuals and couples with fertility treatments. […]
Pierluigi Paganini
March 19, 2025
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Fortinet FortiOS/FortiProxy and GitHub Action flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: In February, Fortinet warned that threat actors were exploiting a new zero-day vulnerability, tracked as CVE-2025-24472 (CVSS score of 8.1), in […]
Pierluigi Paganini
March 18, 2025
Microsoft discovered a new remote access trojan (RAT), dubbed StilachiRAT, that uses sophisticated techniques to avoid detection. In November 2024, Microsoft researchers discovered StilachiRAT, a sophisticated remote access trojan (RAT) designed for stealth, persistence, and data theft. Analysis of its WWStartupCtrl64.dll module revealed that the malware supports sophisticated functionalities to steal credentials from browsers, digital […]
Hacking / November 09, 2025
