: Check for Alternate Data Streams (ADS) or files hidden within images (steganography).
This query is a bit ambiguous because could refer to a few different things in the tech and gaming world. Here are the most likely interpretations: ForestRP.rar
While it's possible this is a gaming resource, I am answering for the interpretation, as "write-up" is a specific term used for documenting how to solve a challenge or analyze a suspicious file. Technical Analysis: ForestRP.rar : Check for Alternate Data Streams (ADS) or
: Use unrar x ForestRP.rar . Often, these are password-protected in CTFs (common passwords: infected , password , or a hint found in an accompanying image). Content Review : I am answering for the interpretation