The log contains thousands of entries from a single IP address——attempting to log in via SSH as the user developer . The timestamps show multiple attempts per second, a clear indicator of an automated brute-force script. 3. Finding the Successful Entry
To find the flag (the password), search for the transition from "Failed password" to "Accepted password" for that specific user and IP. grep "Accepted password" log_2022-11-16T013005.log Use code with caution. Copied to clipboard
: Found by identifying the final password attempted before the "Accepted" status log. log_2022-11-16T013005.log
: Identify the attacker's source IP, the targeted username, and the successful password. Analysis Steps 1. Initial Inspection
Nov 16 01:35:12 ubuntu sshd[4201]: Accepted password for developer from 192.168.1.15 port 52432 ssh2 The log contains thousands of entries from a
# Count failed attempts by IP grep "Failed password" log_2022-11-16T013005.log | awk 'print $(NF-3)' | sort | uniq -c | sort -nr Use code with caution. Copied to clipboard
Near the end of the log (at approximately Nov 16 01:35:12 ), the following entry appears: Finding the Successful Entry To find the flag
In this challenge, participants are tasked with analyzing a Linux system log to identify evidence of a brute-force attack and determine the successful credentials used by the attacker. File Name : log_2022-11-16T013005.log Category : Digital Forensics / Log Analysis
