Zipper is stuck
Description
As an elite cyber investigator, you receive an anonymous tip about a suspicious network activity . Unravel the encrypted messages, follow the digital trail, and work with your team to retrieve the confidential information. The message has a 3 digit lock.
Solution
We are provided with a pcap file
Open the pcap file in wireshark
Save the
flag.zip
from http objects from the captureFile > Export Objects > HTTP > Select flag.zip > Save
Crack password using john
zip2john flag.zip > zip.hash
john zip.hash
Password:
451
Extract the zip file using the password
451
We get a file named
flag.txt
cat flag.txt
Flag:
KPMG_CTF{P@$$w0rd_i$_KPMG}
Alternative ways to crack the password
https://www.lostmypass.com/file-types/zip/
Write a script which will try all the 3 digit combinations
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