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…
Category: Security Affairs
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…
North Korea–linked hackers drain $285M from Drift in sophisticated attack
Drift lost $285M in a sophisticated attack, likely by North Korea, who used nonce-based tricks to gain control and quickly drain funds Drift suffered a $285 million cryptocurrency heist in a highly sophisticated attack likely linked to North Korea. Threat…
CrystalX RAT: new MaaS malware combines spyware, stealer, and remote access
CrystalX RAT, a new sophisticated MaaS malware, combines spyware, data theft, and remote access, allowing attackers to monitor victims. In March 2026, Kaspersky researchers uncovered a Telegram-based campaign promoting a previously unknown malware sold as a MaaS with three subscription…
Pro-Iran Handala group breached Israeli defence contractor PSK Wind Technologies
Iran-linked hackers claim to have breached Israeli air defence contractor PSK Wind, which develops command and control systems. Pro-Iran Handala group announced on April 2 that it breached PSK Wind Technologies, an Israeli engineering and IT firm specializing in integrated…
Hasbro hit by cyberattack, investigates possible data breach
Hasbro suffers a cyberattack, disrupting some operations; the company is probing the scope and potential data compromise. Toy giant Hasbro reported a cyberattack on Wednesday that disrupted certain company operations. The firm is investigating the full extent of the incident,…
Cisco fixed critical and high-severity flaws
Cisco fixed critical flaws that could allow attackers to bypass authentication, run code, and gain access to sensitive data. Cisco released patches for two critical and six high-severity vulnerabilities. These flaws could let attackers bypass authentication, execute malicious code, escalate…
Threat actor UAC-0255 impersonate CERT-UA to spread AGEWHEEZE malware via phishing
Threat actors impersonated CERT-UA to send phishing emails with AGEWHEEZE malware, tricking victims into installing a fake “security tool.” A threat actor, tracked as UAC-0255, impersonated CERT-UA in a phishing campaign, sending emails to about 1 million users. The messages…
Italian spyware vendor creates Fake WhatsApp app, targeting 200 users
WhatsApp blocked a fake app by Italian firm SIO/Asigint that targeted 200 users with spyware, urging them to reinstall the official app. WhatsApp has recently uncovered a malicious fake version of its app that targeted roughly 200 users, most of…
U.S. CISA adds a flaw in Google Dawn to its Known Exploited Vulnerabilities catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Google Dawn to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Google Dawn, tracked as CVE-2026-5281 (CVSS score of 8.8), to…
Google fixes fourth actively exploited Chrome zero-day of 2026
Google fixed a new Chrome zero-day, tracked as CVE-2026-5281, in the WebGPU Dawn component that is already exploited in the wild. Google released Chrome updates fixing 21 vulnerabilities, including a new actively exploited zero-day tracked as CVE-2026-5281. The flaw is…