We found a very old malware. Could you reverse it ?
No deploy
Provide the binary: public/perlovka.
Reverse engineering the Perl script compiled to binary using B:CC.
- Perl script is checking flags by evaling string formatted using user-input.
- Each string is decrypted using key =
16 * user_input[i // 2], so we can brute-force the key and decrypt the Perl strings. - Each string has the flag letter inside it.
No
brics+{perlovkaOchenVkusnAya}