rijndael

[doomedraven]

No description provided.

[gemini-code-assist]

Hello @doomedraven, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

Summary of Changes

This pull request introduces a new decryptor, ConfigDecryptorRijndael, to handle RAT payloads that use Rijndael (AES) encryption in CBC mode. The new decryptor is added to the list of supported decryptors and is designed to extract the AES key from the payload using specific patterns. It includes methods for deriving the key, decrypting ciphertext, and handling base64-encoded strings. The code also handles potential padding issues during decryption.

Highlights

• New Decryptor: Adds ConfigDecryptorRijndael to decrypt configurations encrypted with Rijndael (AES) in CBC mode.
• Key Extraction: Implements methods to extract the AES key from the payload using MD5 hash patterns and RVAs (Relative Virtual Addresses).
• Decryption Logic: Includes decryption logic with padding and unpadding to handle different ciphertext formats.
• Integration: Integrates the new decryptor into the existing framework by adding it to the list of supported decryptors.

Changelog

• src/rat_king_parser/config_parser/utils/decryptors/init.py
  • Imported ConfigDecryptorRijndael.
  • Added ConfigDecryptorRijndael to the list of exported classes.
  • Added ConfigDecryptorRijndael to the SUPPORTED_DECRYPTORS list.
• src/rat_king_parser/config_parser/utils/decryptors/config_decryptor_rijndael.py
  • Created a new file config_decryptor_rijndael.py containing the ConfigDecryptorRijndael class.
  • Implemented methods for key derivation, ciphertext decryption, and RVA extraction.
  • Included error handling for incompatible decryptors and padding issues.

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A cipher's dance, a hidden key,
Rijndael's depths, for all to see.
With patterns found,
The secrets unbound,
Payload's whispers, now carefree.

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[gemini-code-assist]

Code Review

The pull request introduces a new decryptor, ConfigDecryptorRijndael, for handling RAT payloads that use Rijndael (AES) encryption in CBC mode. The implementation includes necessary imports, pattern matching for key extraction, and decryption logic. The new decryptor is also integrated into the existing framework by adding it to the list of supported decryptors. Overall, the code appears well-structured and addresses the intended functionality.

Merge Readiness

The pull request introduces a new decryptor and integrates it into the existing framework. Given the nature of the changes, it's important to ensure that the new decryptor is thoroughly tested and doesn't introduce any regressions. I am unable to directly approve the pull request, and recommend that others review and approve this code before merging. The pull request appears ready to be merged, pending thorough testing and approval from other reviewers.