ALL POSTS

China-Linked FishMonger APT Deploys SprySOCKS Windows Backdoor With Kernel-Level Stealth and UEFI Bootkit Capabilities

Key Findings FishMonger, a China-linked APT group, has ported SprySOCKS backdoor to Windows with two new variants: WIN_DRV and WIN_PLUS WIN_DRV uses kernel drivers to hide network connections, processes, files, and registry keys from user-level detection tools WIN_PLUS exploits the Windows Print Spooler service to blend malicious activity into normal system operations Both variants were deployed against government targets in Honduras, Taiwan, Thailand, and Pakistan between 20

Jun 173 min read

JDownloader's Official Site Distributes Malware to Windows and Linux Users in Major Supply Chain Attack

Key Findings JDownloader's official website was compromised between May 6-7, 2026, serving malicious installers to Windows and Linux users instead of legitimate software Attackers deployed a Python-based remote access trojan (RAT) that gave them remote control over infected systems, with an 8-minute execution delay The breach was limited to the Windows "Alternative Installer" and Linux shell installer; macOS, in-app updates, and package managers remained unaffected Attackers

May 103 min read

New Deep#Door RAT: Stealthy Windows Malware With Advanced Persistence Capabilities

Key Findings Python-based remote access trojan embeds payload directly inside batch file dropper with no external downloads Malware disables Windows Defender, PowerShell logging, firewall logging, and SmartScreen before activating Establishes persistence through multiple mechanisms including startup folders, registry keys, scheduled tasks, and WMI subscriptions with automatic restoration capability Uses bore.pub public TCP tunneling service for command-and-control instead of

May 23 min read