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# Decrypt Binary Payload (AES)

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Load the encrypted binary data into a cryptographic tool such as CyberChef or use a scripting language with a crypto library (like Python's `PyCryptodome`). Utilize the AES Decrypt operation. Provide the known Key and IV obtained from analysis (e.g., from reversed code or configuration).

For example, in CyberChef:

1. Drag the encrypted binary file into the input pane.
2. Add the "AES Decrypt" operation.
3. Enter the recovered Key (`sksd89D2G0X9jk2fF1b4S2a7Gh8aVk0L`) and IV (`Md33eFa0wNx2Zq5LjK6X9t3G7oN45mY1`).
4. Select the correct mode (e.g., CBC is common) and padding scheme if required (often PKCS#7 or None, depending on the source). Parameters for the operation typically include specifying the format of the Key and IV (often Hex), the mode (like CBC), and the padding scheme (like Pkcs7).
5. The decrypted data will appear in the output pane.

If scripting, the process involves reading the ciphertext, initializing the AES cipher object with the key, mode, and IV, and then calling the decrypt method.