TA0001 · INITIAL ACCESS
External Remote Services
VPN, RDP gateways, Citrix, and VDI accessed directly with valid or brute-forced credentials.
Detect it with
VPN logins from residential proxy or VPS ranges; RDP exposed to the internet at all is a finding on its own.
Why it matters on shift
External Remote Services is one of the concrete ways adversaries achieve initial access. Recognising it in telemetry lets you name the technique in your ticket and pivot to what came before and after.
What to look for next
After initial access, the next tactic is usually Execution. Search your telemetry for the transition before closing the ticket.
Kill-chain context