initial access brokersCriminals who sell network access to other threat actors.1Articles893TopicsArticles with this TagSecuritySHADOW#REACTOR Remcos RAT Malware Campaign Abuses Text-Only Stagers and MSBuild.exe for Stealthy Remote AccessSHADOW#REACTOR delivers Remcos RAT through a multi-stage chain using text-only stagers, PowerShell r...Jan 16, 2026