Masjesu Botnet Evolves Into Stealthy Global DDoS-for-Hire Empire Targeting IoT Devices Through Advanced Evasion Techniques Command and Control CyberDefenderApril 8, 2026April 8, 20269 mins0 The Masjesu botnet represents a new wave of commercially operated, stealth-focused IoT malware that has steadily evolved…continue reading..
Storm-1175 Launches Rapid-Fire Ransomware Attacks, Exploiting Vulnerabilities Within 24 Hours of Disclosure Credential Access CyberDefenderApril 7, 2026April 10, 20267 mins0 The financially motivated cybercriminal group Storm-1175, tracked by Microsoft Threat Intelligence, represents a new wave of high-speed…continue reading..
Suspicious Email Leads to Multi-Stage Malware Attack Exploiting PowerShell, Fake JPG Payload, and Windows Defender Evasion CyberSecurity News CyberDefenderApril 5, 2026April 5, 20269 mins0 Cyber threats continue to evolve in sophistication, often blending simple social engineering with layered technical obfuscation. In…continue reading..
Yurei Ransomware Emerges as Stealthy Threat, Leveraging Open-Source Tools and Stolen Credentials for Targeted Attacks Command and Control CyberDefenderApril 3, 2026April 3, 20269 mins0 The ransomware landscape continues to evolve rapidly, with new groups leveraging open-source tools to accelerate their operations.…continue reading..
Microsoft Defender Thwarts Sophisticated GPO-Based Ransomware Attack on Major Educational Institution, Preventing Widespread Encryption CyberSecurity News CyberDefenderMarch 24, 2026March 24, 202614 mins0 Ransomware groups are no longer relying on basic intrusion techniques. Instead, they are carefully studying enterprise environments…continue reading..
“Prometei Botnet Caught Squatting on Windows Servers, Abusing RDP Access and Stealthy Persistence Techniques” CyberSecurity News CyberDefenderFebruary 9, 2026February 9, 20268 mins0 In January 2026, researchers , identified a malicious command targeting a Windows Server belonging to a client…continue reading..
Windows Malware Campaign Uses In-Memory Loaders and Live Chat to Control Victims CyberSecurity News CyberDefenderFebruary 1, 2026February 1, 20269 mins0 Security analysts uncovered a highly evasive Windows malware operation that combines a live interactive remote access tool…continue reading..
ShadowHS Exposed: Fileless Linux Framework Uses Weaponized Hackshell for Stealthy Post-Exploitation Control CyberSecurity News CyberDefenderJanuary 30, 2026January 30, 202614 mins0 Researchers have identified a sophisticated Linux intrusion chain built around a fully fileless, in-memory post-exploitation framework derived…continue reading..
Researchers Disclose “Swarmer,” a Stealthy Windows Registry Persistence Technique Abusing Mandatory User Profiles CyberSecurity News CyberDefenderJanuary 29, 2026January 29, 202612 mins0 Eventually, every internal tool reaches the point where keeping it private stops making sense. That moment has…continue reading..
Modify Authentication Process (Persistence) Cyber Kill Chain CyberDefenderDecember 22, 2025December 22, 20258 mins0 Modify Authentication Process is a Persistence technique where an adversary alters how authentication works on a system…continue reading..
