Windows Variant of SprySOCKS Backdoor Discovered, Abuses Kernel Drivers for Stealth
By
Rob Wright
Summary
ESET researchers have discovered a previously undocumented Windows variant of SprySOCKS, a Linux backdoor used by the China-nexus threat group FishMonger (aka Earth Lusca/Aquatic Panda). This new variant abuses kernel drivers to evade detection and has been deployed against government targets in multiple countries. FishMonger was previously tied to i-Soon, a Chinese technology company conducting cyber operations on behalf of the PRC.
Source
Key quotes
· 3 pulledFishMonger, a notorious nation-state threat group tied to a Chinese technology company, has expanded its tooling with a Windows backdoor that uses kernel drivers to remain undetected.
ESET discovered a previously undocumented version of SprySOCKS, a Linux backdoor that initially was observed in 2023 in threat activity from FishMonger (aka Earth Lusca and Aquatic Panda).
Last year, the cyber-espionage group was tied to i-Soon, a Chinese technology company that conducted cyber operations on behalf of the People's Republic of China (PRC).
You might also wanna read
Security Analysis: Exploiting Kernel Stack Use-After-Free Vulnerabilities in NVIDIA's Linux GPU Drivers
This technical article details two critical security vulnerabilities discovered in NVIDIA's Linux Open GPU Kernel Modules - specifically a k
FreeBSD 14.x Kernel LPE Vulnerability: FatGid Exploit Details
This article details a Local Privilege Escalation (LPE) vulnerability in the FreeBSD 14.x kernel, specifically in the kern_setcred_copyin_su
MakuluLinux (6.4M Downloads) Ships Persistent Backdoor from Developer's Own C2
Technical Analysis of CVE-2025-53149: Heap-based Buffer Overflow in Windows Kernel Streaming Driver
Researchers discovered CVE-2025-53149, a heap-based buffer overflow vulnerability in the Windows Kernel Streaming WOW Thunk Service Driver (
Singularity: A Stealthy Linux Kernel Rootkit for Modern 6.x Kernels
Singularity is a sophisticated Linux Kernel Module (LKM) rootkit designed for modern 6.x kernels that provides comprehensive stealth capabil
GNU IFUNC, Not xz-utils, Is the Real Culprit Behind CVE-2024-3094 Backdoor
This article argues that the real culprit behind CVE-2024-3094 (the xz-utils backdoor) is not the malicious code injection itself, but rathe
Comments
Sign in to join the conversation.
No comments yet. Be the first.
