SESSION_ID: 4f9a2c1e ● REC ENCRYPT: AES-256
blackbox@ctf-server:~$ ./countdown --op=BLACKBOX
⬛ TOP SECRET // CTF
OPERATION BLACKBOX
// CHALLENGE UNLOCK SEQUENCE INITIATED
00
days
:
00
hours
:
00
mins
:
00
secs
TARGET: loading...
ELAPSED0%
[--:--:--]Initializing countdown sequence...
[--:--:--]Challenge archive locked. Waiting for T-0.
[--:--:--]Access denied. Stand by for unlock.
[--:--:--]BLACKBOX.zip — SEALED
🎂 HAPPY BIRTHDAY! 🎂
// ACCESS GRANTED — CHALLENGE UNLOCKED
Decrypting payload...

▸ CHALLENGE UNLOCKED // BLACKBOX.zip

// OBJECTIVE The sealed archive is now accessible. Retrieve the file and extract it using the passphrase below. // ARCHIVE FILENAME
BLACKBOX.zip
// ZIP PASSPHRASE
■■■■■■■■■■■■■■■■■
// EXTRACTION COMMAND
unzip -P [passphrase] BLACKBOX.zip
// NEXT STEP Inside the archive you will find your first flag.
⚠ This page auto-unlocked at the designated epoch. Tampering with local time does not affect server-side validation.
All access attempts are logged. Good luck, operator.