Luciafer, consummate hacker, got cocky and careless. She made a fatal mistake, and in doing so, gave control of her computer to… someone. She ran a program on her computer that she shouldn't have.
What is the md5sum of the program? Submit the flag as:
Use the PCAP from Monstrum ex Machina
While solving the SUM of All FEARS challenge we observed a 3rd binary not related to that challenge (nor any subsequent challenge) so had a hunch it might be related to this challenge.
$ cat http.log | zeek-cut uri resp_fuids | grep -E "bin|exe" /secret_decoder.bin FpKjLR1yS7Jlxq9tYg
We pull the MD5 hash from Zeek's
file.log based on the file id in
http.log and submit it as the flag.
$ cat files.log | zeek-cut fuid md5| grep FpKjLR1yS7Jlxq9tYg FpKjLR1yS7Jlxq9tYg 42e419a6391ca79dc44d7dcef1efc83b
The accepted flag was: