This one appeared to drive other people nuts, along with me, who also did not know about the GIF tool I should use (https://dtm.uk/gif-steganography/) I tried using steghide, and it asked for a passphrase. I tried "stegosuite gui," and it just yanked the regular gif file. I again complained about a passphrase.
Next, I attempted to use various passphrases, but no luck! They were all parts of things I found in the text, which is here:
We've received a GIFt from what appears to be a signal coming from extraterrestrial life! Although it appears they've used steganography to hide it inside of this .gif file. All we know is that it's in the form of a text file named 'iwanttobelieve.txt'. Can you recover it?
Well, once we did a git clone of the tool, it found everything easy. These were my commands (where gift.gif is the download file): git clone https://github.com/dtmsecurity/gift.git cd gift python3 gift-cli.py analyze ../gift.gif python3 gift-cli.py --source ../gift.gif recover recovered.txt cat recovered.txt HELLO HUMANS. WE COME IN PEACE.
MY NAME IS J0K3 AND I AM BROADCASTING THIS MESSAGE FROM SIGMA CENTAVRI.
WE FORMALLY APOLOGIZE FOR ABDUCTING SO MANY OF YOUR KIND. AND ALSO THE COWS.
WE HOPE YOU ACCEPT THIS TOKEN OF ATONEMENT.
OUR RESEARCH SHOWS IT IS HIGHLY PRIZED BY YOUR KIND.
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
PS: THE HUMANS WERE DROPPED OFF IN BORNEO. ALSO, WE ARE KEEPING THE COWS. I NAMED THIS ONE "ANTHONY".
There is our wonderful flag.