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Malware
State-Sponsored UAT-4356 Deploys FIRESTARTER Backdoor on Cisco Firepower Devices via Chained N-Day Vulnerabilities
26 April 2026 dark6
Cisco Talos has uncovered an active espionage campaign by state-sponsored group UAT-4356, which chains two Cisco Firepower FXOS vulnerabilities (CVE-2025-20333...
Malware
Supply Chain Attack Backdoors Smart Slider 3 Pro: 800,000+ WordPress Sites at Risk
13 April 2026 dark6
Attackers compromised Nextend's update infrastructure to distribute a weaponized version of Smart Slider 3 Pro (v3.5.1.35) for approximately six hours...
Vulnerability
Stealthy Linux backdoor leveraging residential proxies and NHAS reverse SSH
4 May 2025 securebulletin.com
A recently discovered Linux backdoor (SHA256: ea41b2bf1064efcb6196bb79b40c5158fc339a36a3d3ddee68c822d797895b4e) employs advanced evasion techniques to bypass detection while establishing persistent access via SOCKS5...
Spyware
Glutton: a new PHP backdoor
2 January 2025 securebulletin.com
On April 29, 2024, XLab’s threat analysis system detected unusual activities linked to a new malware named Glutton, designed to...
Spyware
Yokai Backdoor campaign using DLL side-loading techniques
16 December 2024 securebulletin.com
Thai government officials are currently facing a sophisticated cyber threat as they become the primary targets of a new malware...