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I have a Python script which login on a page (sso.acesso.gov.br) using some credentials and them usually answer a captcha using 2Captcha API.

The problem is that recently it takes an error after captcha answer, even when I answer it manually. By the way, the error message received is different than when I forced answer wrong, which makes me believe that my script has now being detected somehow by the website.

If I open a Chrome browser as a user and just do the same steps, I can login, sometimes even without captcha. And all times without an error.

Here is my code:

from selenium import webdriver
from fake_useragent import UserAgent
import undetected_chromedriver as uc
from fp.fp import FreeProxy

user_path = 'C:\\PythonProjects\\User Data'
driver_path = 'C:\\PythonProjects\\107\\chromedriver.exe'


options = webdriver.ChromeOptions()

## Tactics to avoid being detected as automation
options.add_argument("--start-maximized")
options.add_argument('--disable-blink-features=AutomationControlled')

## User profile
options.add_argument(f"--user-data-dir={user_path}")

## User agent
ua = UserAgent()
options.add_argument(f'--user-agent={ua.random}')

## Proxy
proxy = FreeProxy().get()
options.add_argument(f'--proxy-server={proxy}')

## Set browser
driver = uc.Chrome(
    driver_executable_path = driver_path,
    options = options
)

## Set device memory info
driver.execute_script("Object.defineProperty(navigator, 'deviceMemory', {get: () => 8});")

## Set navigator webdriver to undefined
driver.execute_script("Object.defineProperty(navigator, 'webdriver', {get: () => undefined});")

## Open page
driver.get('https://sso.acesso.gov.br/login')

## From this point I insert CPF (user) and password, then answer captcha using 2Captcha
## I also have tried just set the browser and navigate manually, inserting data and answering captcha, but no success

Do you have any suggestion to bypass this block? I have no idea about what is detecting and blocking my browser.

If I use my script on bot.sannysoft.com, I get the following results:

Intoli tests

Fingerprint Scanner 1/2

Fingerprint Scanner 2/2

Renan
  • 1
  • https://stackoverflow.com/questions/33225947/can-a-website-detect-when-you-are-using-selenium-with-chromedriver – Suzz Nov 29 '22 at 00:31

1 Answers1

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Add couple of seconds wait before you enter correct captcha first time, that might work unless its designed otherwise.

Anmol Parida
  • 672
  • 5
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