https://veteransec.com/2018/10/19/hacktober-ctf-2018-binary-analysis-larry/
In Summary : A basic reverse engineering challenge for a CTF and a mini intro to RE. [...] kindly refer the following link as follow up : ...
https://updatesinfosec.blogspot.com/2018/10/httpsveteranseccom20181019hacktober-ctf.html

A basic reverse engineering challenge for a CTF and a mini intro to RE. [...]
kindly refer the following link as follow up :
https://veteransec.com/2018/10/19/hacktober-ctf-2018-binary-analysis-larry/