Rating:
I've heard that everyone just uses dcode.fr to solve all of their crypto problems. Shameful, really. This is really just a basic Caesar cipher, with a few extra random characters on either side of the flag. Dcode can handle that, right? >:) The '{', '}', and '_' characters aren't part of the Caesar cipher, just a-z. As a reminder, all flags start with "utflag{".
Working with the file I do the following. I put the file into CyberChef, and do a ROT13 and then a Find / Replace and check for any instances of the string utflag{.
I roll through the rotation till I see a length drop in the output at 18.
I delete the Find / Replace, and save the output.
Searching the saved output for utflag{ I find the flag.
Flag: utflag{rip_dcode}
