Brute-force attacks target login mechanisms, servers, and systems, trying to identify login information through trial and error. Given that the need for remote access with RDP is growing daily, it is natural to be concerned about Brute-Force Attacks.
You should take the first step powerfully and buy RDP from a reliable provider. A secure payment method like a credit card plays an important role in ensuring the reliability of the RDP server. So, try to buy RDP with credit card.
Then, secure this server against brute force attacks by implementing solutions such as using long and complex passwords, limiting login attempts, using CAPTCHA, and enabling MFA.
What Is a Brute Force Attack?
Brute Force is a cyber attack in which a hacker tries to gain access to confidential information and accounts by executing repeated requests.
In this way, they can access system resources and perform operations such as executing malware, stealing valuable data, and restricting access to sensitive files.
A brute force attack involves 1. selecting a target, 2. obtaining basic public information, 3. generating a list of passwords, 4. trial and error, and 5. discovering login information.
Now, if hackers try to execute this process on RDP systems and servers, they can access the confidential information of the remote system and carry out their goals.
9 Proven Ways to Defend Against RDP Brute Force Attacks
To protect your RDP server from these types of attacks, you can use these powerful methods.
1. Buy A Secure RDP server
Having a secure and reliable RDP server is the main factor in staying safe from all kinds of cyber attacks such as brute force. When you buy RDP with credit card, you can instantly enjoy a reliable server solution that ensures optimal security and control.
The security of the RDP VPS is inherently resistant to all kinds of hacker attacks. But you have the freedom to configure its security settings and capabilities according to your needs to get closer to your ideal security.
So with a credit card payment method, you can minimize the concerns related to RDP Brute Force Attack right from the start.
2. Use long and complex passwords
Passwords like 1234 are among the first attempts of hackers and using these types of passwords is very dangerous and risky. Try to use long and complex passwords by combining long phrases, numbers, lowercase and uppercase words, and symbols.
By doing this, you will create a strong barrier against RDP brute force attacks that will protect your sensitive information and files.
Also, try to set a unique password for each user account so that access to one account does not open the way to access other accounts.
Finally, do not forget to periodically update passwords, as this will make the system more resistant to constant hacker attempts.
3. Limit the RDP login Attempts
Consecutive login attempts are one of the main signs of a brute force attack. So you can set a rule for such situations to limit unauthorized attempts. Measures such as setting the maximum allowed logins in a certain period, for example, 10 minutes, can prevent such incidents.
If you also implement the idea of ??locking the account after a few unsuccessful attempts, you can improve its security level to a higher extent.
4. Use of Multi-factor authentication(MFA)
By using multiple authentication methods, you can create a deep layer of security for your users to log in.
So instead of relying solely on username and password, use other authentication methods such as fingerprint authentication apps like Google Authenticator, facial recognition, or email-based verification.
If you do this, even if a hacker guesses your password, they still have to go through several more layers to gain access to your system.
5. Limit RDP Access to Specific IP Addresses
If you allow a certain number of trusted IPs to access the RDP server and restrict access to other IPs, you can control RDP access more effectively. You can use a firewall to do this.
Of course, considering that using VPNs, connecting to different networks (Wi-Fi or LAN), and DHCP settings can cause IPs to change, there is a possibility that sometimes users with trusted IPs will have problems accessing RDP. Overall, this method is practical and useful for preventing brute-force attacks.
6. Use CAPTCHA code
Brute force attacks are often performed using bots to perform automated password trial and error. Using a CAPTCHA code strategy can prevent automated bots from attempting to log in.
This strategy sets a clever challenge for login authorization that non-human users usually cannot solve.
You can use services like reCAPTCHA or hCaptcha to implement CAPTCHA.
7. Change the Default RDP Port
By default after buying RDP, it runs on port 3389, which is a known target for hackers. It’s best to change this port number to something less likely to be guessed.
While this won’t stop hackers, it can be an effective way to prevent automated attacks from running on the default ports. But make sure the new port number doesn’t conflict with other services.
8. Use Network-Level Authentication (NLA)
The NLA system requires users to authenticate before establishing a Remote Desktop session. This creates an additional layer of security that only allows authorized users to initiate the RDP process.
This way, hackers have to go through an authentication step before accessing the Login page, which reduces the risk of brute force attacks.
9. Deploy an RDP Gateway
The RDP Gateway acts as an intermediary between external users and the RDP server to manage remote connections. Users must first authenticate with the Gateway and then send a connection request to the RDP.
This way, all RDP traffic is encrypted via the HTTPS protocol, and your internal servers are no longer directly exposed to the Internet. This makes direct attacks on RDP (such as Brute Force) almost impossible.
10. Monitor RDP Logs and Use Intrusion Detection Systems (IDS)
With the system and authentication log monitor, you can identify signs of malicious activity, such as repeated login attempts or unauthorized access attempts.
Implementing Intrusion Detection Systems (IDS) to monitor network traffic in real-time, setting alerts for failed login attempts, and using User and Entity Behavior Analysis (UEBA) tools are some of the measures that can help detect anomalies quickly and accurately.
11. Use a VPN to access RDP
A VPN is a typical way to restrict access to the RDP port. A VPN creates a secure tunnel for data transmission, making it harder for hackers to gain access.
Additionally, using a VPN allows you to only allow authenticated users to access RDP from specified IP addresses.
Also, by encrypting the traffic, any eavesdropping by attackers or Man-in-the-Middle attacks becomes almost impossible.
12. Disable RDP When Not Needed
Hackers can launch brute force attacks when the RDP port is active. So if you only use RDP for specific purposes or limited periods, it’s a good idea to disable it when you don’t need it.
This will make the service inaccessible to users and reduce the likelihood of it being used for hacking attacks.
What Are The Signs Of Brute Force Attacks?
You can tell if your RDP is under attack by seeing the following signs:
- Unsuccessful login attempts from the same IP address
- Multiple login attempts with incorrect passwords
- Increased number of authentication failures
- Unauthorized access to sensitive accounts
- Many unsuccessful attempts to log in to an account with different IP addresses
- Unexpected changes in system settings or RDP configuration
- Sudden changes in network traffic
- Increased internet use after a successful login
- Unusual user behavior after a successful login
What To Do If You See Signs Of A Brute Force Attack?
If you suspect your account has been compromised by a brute force attack, first buy RDP with credit card from a reliable provider, then take these 5 key steps immediately:
1. Change your RDP password to a strong, unique, and unguessable password.
2. Check your RDP account settings.
3. If you haven’t enabled MFA, enable it immediately.
4. Log out of your RDP sessions.
5. Contact your RDP provider to take action.
Conclusion
Buying RDP with credit card is the first step to preventing brute-force attacks. You can then increase the level of security by implementing other solutions such as implementing MFA and an RDP Gateway.
Also, using complex passwords, limiting failed login attempts, and constantly monitoring the system can prevent unauthorized access.
