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Log analysismedium200 pts0 solves

Brute-Force Timeline

The SOC received an alert for web01. The SSH log shows a lot of noise. Build the attack timeline: who attacked, who got in, and what did they do next?

Learning objectives

Read authentication logs, correlate failures with a success and follow post-compromise commands.

Instructions

Analyse auth.log (about 1,400 lines, synthetic). The flag appears in a command run with sudo after the intruder logged in.

Prerequisites: grep/awk or a log tool; basic SSH log knowledge.
Flag format: cspk{...}
Files: auth.log (112.6 KB) (download after registering)
Useful tools: Wazuh

References

Write-up

The full write-up and learning takeaways unlock after you solve this challenge — spoilers stay hidden until then.