GreyNoise AS213438 (ColocaTel) RDP Fleet - Network + Identity Detection
Detects inbound network connections and Azure AD sign-in attempts originating from the 21-IP RDP scanning fleet attributed to AS213438 (ColocaTel Inc., Seychelles), as reported by GreyNoise on April 10, 2026. The fleet generated 67.4% of global RDP Crawler activity on April 7, 2026 across four /24 blocks geolocated to the Netherlands. The same ASN demonstrated a burst-and-crash pattern in both March and April 2026, suggesting further rotations are likely.
Microsoft Sentinel (KQL)
