Don't be fooled by two 0xffd9 markers.
xor is your friend.
6 months ago
not too difficult not too easy , use hexedit and cyberchef
new things has been learned. bruXor costs a lot of time then suddenly a tool with only xor from "xor is your friend" which solves my problem in just 1.2 minutes lmao..
7 months ago
finally !!! its Hard ...
this one took a lot of work to solve, congrats
1 year ago
I've put those extra hex numbers (AFTER the first FF D9) into CyberChef and run the magic function in intensive mode but it doesn't find anything useful. Am I to enter a Crib into the magic box to help it as I've no idea what to add?
I don't use cyber chef so I can't help you.
2 years ago
(quite easy, even without the hint)
got the flag with the help of the discussion but not really sure of what I did, or how to do a better way. I can send my solution to anyone ready to help. Thanks.
What tools did you use to take apart the jpeg?
3 years ago
What is that extra stuff after EOI ;)
Shhh... that is the flag, but it is in a binary format. Are there any clues in the challenge that might help with next steps?
hex editor and cyberchef's magic solved in 2 mins
That comment was useful, thanks! Cyberchef is really magic
Also you can use xortool instead of CyberChef ;)