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TA0043 · RECONNAISSANCE

Wordlist Scanning

T1595.003Sub-technique of Active ScanningPREattack.mitre.org

Adversaries may iteratively probe infrastructure using brute-forcing and crawling techniques.

Detect it with

Monitor for suspicious network traffic that could be indicative of scanning, such as large quantities originating from a single source (especially if the source is known to be associated with an adversary/botnet).

Why it matters on shift

Wordlist Scanning is one of the concrete ways adversaries achieve reconnaissance. 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 reconnaissance, the next tactic is usually Resource Development. Search your telemetry for the transition before closing the ticket.

Kill-chain context

Reconnaissanceafter →Resource Development