The search results indicate that challenges around that time involved:
Looking for files such as creds.txt or hardcoded strings in binary files.
did you hear about this file? (e.g., a specific Twitter post, Discord, or class?) Is it a Password Cracking or Malware Analysis challenge? Download Noel20210927 rar
HTB Sherlocks Write-up regarding a "Neural Noel" challenge.
Based on the provided search results, there is no direct public link for a file named "Noel20210927.rar". However, the date and name "Noel" suggest this is likely a challenge from late 2021, possibly related to SANS Holiday Hack Challenge (KringleCon) or a similar cybersecurity event. The search results indicate that challenges around that
Noel Carrasco and Noel Amoin frequently post CTF write-ups. AmIRootYet: Kringlecon 2021 walkthroughs.
Using tools like SQLmap, Burp Suite, or manipulating parameters (e.g., in Python-based environments). HTB Sherlocks Write-up regarding a "Neural Noel" challenge
Holiday Hack 2023 (might contain references to earlier challenges).