APT28 targets Ukraine and allies with PRISMEX malware, using stealthy techniques for espionage and command-and-control. Russia-linked group APT28 (aka UAC-0001, aka Fancy Bear, Pawn Storm, Sofacy Group, Sednit, BlueDelta, and STRONTIUM) is running a spear-phishing campaign against Ukraine and its allies, deploying a new malware suite…
Category: Security Affairs
Signature Healthcare hit by cyberattack, services and pharmacies impacted
Massachusetts’ Signature Healthcare diverts ambulances and cancels services after a cyberattack disrupts hospital operations and pharmacy access. The hospital Signature Healthcare in Brockton, Massachusetts, diverted ambulances and canceled some services after a cyberattack disrupted operations. Pharmacies couldn’t fill prescriptions, though…
Project Glasswing powered by Claude Mythos: defending software before hackers do
Anthropic unveiled Claude Mythos, a powerful AI for cybersecurity that could also be misused to enhance cyberattacks. Anthropic has unveiled Claude Mythos, a new AI model designed to strengthen cybersecurity through Project Glasswing, aiming to secure critical software before it…
U.S. agencies alert: Iran-linked actors target critical infrastructure PLCs
U.S. agencies warn Iran-linked threat actors are targeting internet-exposed PLCs used in critical infrastructure networks. U.S. agencies, including the FBI and CISA, warn that Iran-linked hackers are targeting internet-exposed Rockwell/Allen-Bradley PLCs used in critical infrastructure. The agencies published a joint…
Attackers exploit critical Flowise flaw CVE-2025-59528 for remote code execution
Attackers are exploiting a critical Flowise flaw, tracked as CVE-2025-59528 (CVSS score of 10), that lets them run malicious code and access systems due to poor validation of user-supplied JavaScript. Attackers are actively exploiting a critical vulnerability in Flowise, tracked as CVE-2025-59528,…
Major outage cripples Russian banking apps and metro payments nationwide
A major outage hit Russian banking apps and payments, blocking card use, cash withdrawals, and mobile access for hours. A widespread outage disrupted banking apps and payment systems across Russia, leaving customers unable to pay by card, withdraw cash, or…
Fast-moving Storm-1175 uses new exploits to breach networks and drop Medusa
China-based actor Storm-1175 runs fast ransomware attacks, exploiting new flaws to breach systems and quickly deploy Medusa ransomware. China-based actor Storm-1175 carries out fast, financially driven ransomware attacks by exploiting newly disclosed vulnerabilities before organizations patch them. The group targets…
GPUBreach exploit uses GPU memory bit-flips to achieve full system takeover
GPUBreach attack technique uses GPU memory bit-flips to escalate privileges and potentially take full control of a system. New research shows that attacks like GPUBreach exploit RowHammer bit-flips in GPU memory (GDDR6) to go beyond data corruption. Attackers can use…
U.S. CISA adds a flaw in Fortinet FortiClient EMS to its Known Exploited Vulnerabilities catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Fortinet FortiClient EMS to its Known Exploited Vulnerabilities catalog The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Fortinet FortiClient EMS, tracked as CVE-2026-35616 (CVSS score of…
Experts published unpatched Windows zero-day BlueHammer
A researcher leaked the unpatched Windows zero-day “BlueHammer,” letting attackers gain SYSTEM rights; no patch exists yet. A disgruntled researcher released the BlueHammer Windows zero-day, a privilege escalation flaw that allows attackers to gain SYSTEM or admin rights, Bleeping Computer…
Phishing LNK files and GitHub C2 power new DPRK cyber attacks
DPRK-linked hackers use GitHub C2s, starting attacks via phishing LNK files that drop a PDF and PowerShell script in South Korea. North Korea-linked threat actors target South Korean organizations using GitHub as C2 servers. The attack chain starts with phishing…
BKA unmasks two REvil Ransomware operators behind 130+ German attacks
German police BKA identified two key REvil ransomware members, linking them to over 130 attacks in Germany. Germany’s Federal Criminal Police (BKA) has identified two key figures behind the REvil ransomware group, linking them to more than 130 attacks in…
Attackers Exploit RCE Flaw as 14,000 F5 BIG-IP APM Instances Remain Exposed
Over 14,000 F5 BIG-IP APM instances remain exposed online, as attackers actively exploit a critical remote code execution flaw CVE-2025-53521. Over 14,000 F5 BIG-IP APM instances remain exposed online, with attackers actively exploiting the critical remote code execution vulnerability CVE-2025-53521…
CVE-2026-35616: Fortinet fixes actively exploited high-severity flaw
Fortinet issued emergency patches for a critical FortiClient EMS flaw (CVE-2026-35616) actively exploited in the wild. Fortinet released out-of-band patches for a critical FortiClient EMS vulnerability, tracked as CVE-2026-35616 (CVSS 9.1), which is already being exploited in attacks in the…
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 91
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Infiniti Stealer: a new macOS infostealer using ClickFix and Python/Nuitka Converging Interests: Analysis of Threat Clusters Targeting a Southeast Asian Government…
Security Affairs newsletter Round 571 by Pierluigi Paganini – INTERNATIONAL EDITION
A new round of the weekly Security Affairs newsletter has 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. Qilin…
Image or Malware? Read until the end and answer in comments :)
A malicious email delivered a .cmd malware that escalates privileges, bypasses antivirus, downloads payloads, sets persistence, and self-deletes. I received this email from a friend to make an analysis. First, let me express my thanks to Janô Falkowski Burkard for…
Qilin ransomware group claims the hack of German political party Die Linke
Qilin ransomware claims it stole data from Germany’s Die Linke and threatens to leak it; the party confirmed the incident, but not a breach. The Qilin ransomware group claims it stole data from Die Linke, a German political party, and…
U.S. CISA adds a flaw in TrueConf Client to its Known Exploited Vulnerabilities catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in TrueConf Client to its Known Exploited Vulnerabilities catalog The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in TrueConf Client, tracked as CVE-2026-3502 (CVSS score of 7.8), to…
European Commission breach exposed data of 30 EU entities, CERT-EU says
CERT-EU says a European Commission cloud hack exposed data from 30 EU entities and links the breach to the TeamPCP group. CERT-EU attributed a European Commission cloud breach to the TeamPCP threat group, revealing that data from at least 30…