XWorm is a modular MaaS-style Remote Access Trojan ecosystem active since ~2022, sold via underground channels and used across diverse campaigns. It supports remote control, credential and crypto wallet theft, keylogging, clipboard monitoring, and plugin-based extensibility (including in-memory DLL plugins). Recent reporting documents evolving delivery chains: phishing campaigns with document exploitation (e.g., Excel CVE-2018-0802 leading to HTA staging), shellcode-based multi-stage loaders with injection, and v6.0 enhancements including AMSI bypass and anti-analysis features. Persistence commonly includes Run key and Startup folder techniques. Due to multi-operator usage, defenders should prioritize behavior-first detections, time-bounded IOC operations, and campaign clustering rather than single-actor attribution. Late-2025 operator release notes for versions 7.1-7.3 additionally suggest active commercial upkeep and feature work around UAC control/bypass, credential-recovery modules, plugin refurbishment, and a maintained ransomware component; these claims should be treated as version-scoped and marketing-influenced until independently reversed.