defensive-security · beginner

SSH Brute-Force Detection

Detect and document repeated fictional SSH authentication failures without attempting access.

beginner45 mins10 tasks100 XP

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What you will learn

Section 1 · 10 tasks

SSH Detection

Investigate prerecorded authentication evidence while avoiding unsupported claims about identity or intent.

Learning objectives

Normal SSH Authentication
Failed SSH Authentication
Count the Failures
Identify the Source
Identify the Target
Time-Based Pattern
Distinguish Noise from Signal
Investigate a SOC Alert
Build the Evidence Timeline
Final SSH Investigation

Skills

sshsshdauthenticationfailed-authenticationbrute-forceauthentication-failuresource-iptarget-accountevent-frequencytime-windowdetection-signalalerttriageevidenceescalationfalse-positivesoc

Prerequisites

System Logs & Troubleshooting

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