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WhatsApp QR Code Attack: A Stealthy Intrusion



WhatsApp, a widely-used messaging application, is the latest platform to fall victim to a cunning cyberattack method, known as the WhatsApp QR Code Attack. This attack unfolds as a multi-step process, where the attacker exploits the QR code feature within WhatsApp to gain unauthorized access to a user’s account and even intercept messages and data.

The Flow of Whatsapp QR Code Attack (Easy to understand)

  • Attacker’s QR Session


The attacker initiates the attack by establishing a client QR session with the WhatsApp server. This session is a critical component of WhatsApp’s multi-device feature, which allows users to access their accounts on multiple devices.

  • Phishing Site Ads


To lure unsuspecting victims, the attacker adds phishing site advertisements to Google Search, where users often search for information. These ads prompt users to scan a QR code, making them believe they are interacting with an official WhatsApp service.

  • User Scans QR Code


Once a user, unaware of the malicious intent, scans the QR code using their WhatsApp mobile device, the attacker’s client QR session is established with the user’s account. This action initiates the attacker’s access to the victim’s WhatsApp account.

  • Attacker Takes Control


With the QR session established, the attacker gains control of the victim’s WhatsApp account. The attacker can access messages, view contacts, and even send messages on behalf of the victim. This intrusion is often imperceptible to the user, as the attacker maintains a stealthy presence within the WhatsApp account, attacker will try to archive the messages or deleted.

  • Data Intercept


As the attacker establishes control over the victim’s account, the WhatsApp server continues to deliver messages and data to the compromised account, which is now under the attacker’s command. This data interception can include personal conversations, multimedia files and sensitive information that the victim shares through WhatsApp; the most common case is keeping pretending to lie to the contact person who needs to borrow money.


The WhatsApp QR Code Attack is a concerning breach of security that highlights the evolving tactics of cybercriminals. It exploits a feature designed to enhance user convenience and multi-device functionality. Users must exercise caution when scanning QR codes, particularly when prompted by online ads or sources that may not be reputable.

WhatsApp, like other communication platforms, constantly works to bolster its security measures. However, the battle against determined attackers is ongoing. User awareness, best security practices, and vigilance in online interactions are key in safeguarding personal information and communication.

In the age of rapidly advancing technology, the WhatsApp QR Code Attack serves as a stark reminder that cybersecurity remains an essential concern, and both service providers and users must remain proactive in the face of emerging threats.

The Flow of Whatsapp QR Code Attack (Technical Part)

  • Cloning Real QR Codes


The attack begins with the attacker cloning a genuine QR code from official WhatsApp. This QR code is an essential element of WhatsApp’s multi-device feature, designed to simplify the synchronization of accounts across different devices.

  • Deceptive Websites


With the cloned QR code in hand, the attacker creates a fake WhatsApp website designed to mimic the appearance of the legitimate WhatsApp web interface. The fake website is hosted and made accessible to users through various deceptive channels, often via Google Search results.

  • WebSocket Connection


The fake WhatsApp website leverages a WebSocket connection (wss:// to establish a connection with the official WhatsApp server. This connection serves as the bridge between the user’s web browser and the WhatsApp server, allowing the attacker to infiltrate the communication.

  • QR Code Scanning


Unaware of the deception, the user scans the cloned QR code using their WhatsApp mobile application, believing they are linking to WhatsApp Web.

  • Unauthorized Data Sharing


The mobile device communicates with the WhatsApp server, sharing the user’s phone number (XXXX) and authentication credentials (YYYYY). The WhatsApp server verifies this communication with QR code.

  • Confirmation


The WhatsApp server confirms the WebSocket connection associated with the QR code, believing it is in communication with an authentic WhatsApp Web session. This provides the attacker with a secure channel for access user data.

  • Resource Requests


The fake WhatsApp website, in response to WebSocket instructions, sends corresponding GET requests to the WhatsApp server, fetching essential resources such as thumbnails and other media.

  • Data snoop


As the communication channel is secured, the attacker begins to view all message from the user account. This can include the user profile information and ongoing conversations.

  • Gaining SessionID


The attacker ultimately gains access to the victim’s SessionID, a critical element in maintaining control of the victim’s account. This allows the attacker to manipulate the victim’s WhatsApp account and continue data snooping.



In the face of ever-evolving threats like the WhatsApp QR Code Attack, innovative solutions are crucial to protect users from phishing attacks. Prosfinity, a trailblazing cybersecurity company, has introduced AI PhishNet, a powerful and free Chrome extension designed to combat these threats. Leveraging various AI techniques, AI PhishNet offers robust defense against malicious attacks like the WhatsApp QR Code Attack, and its free version is available to personal users without requiring a login.

The Power of AI PhishNet

AI PhishNet, developed by Prosfinity, is a game-changing addition to the cybersecurity landscape. This Chrome extension harnesses the might of AI to recognize and thwart phishing attacks, safeguarding users from increasingly sophisticated cyber threats.

Zero-Day Attack Detection: AI PhishNet excels at identifying zero-day phishing attacks, which are previously unknown and lack specific signatures. Its adaptive algorithms allow it to detect even the most novel threats, such as the WhatsApp QR Code Attack.

Real-time Monitoring: AI PhishNet operates in real-time, continuously analyzing user interactions with websites and services. It promptly raises alerts or blocks access when it detects suspicious activity, ensuring immediate intervention.

Pattern Recognition: The AI system from Prosfinity utilizes pattern recognition to identify potential phishing sites and tactics. It recognizes deviations from typical user behavior and exposes fraudulent websites that impersonate legitimate services like WhatsApp Web.

Multi-Layered Protection: AI PhishNet is not limited to a single method of detection. It combines several AI techniques to create a multi-layered defense, boosting accuracy and reducing false positives.

The Solution for WhatsApp Users

AI PhishNet is available as a Chrome extension and can be seamlessly integrated into WhatsApp’s security framework to protect users from deceptive attacks. The free version of this extension is accessible to personal users without requiring any login or subscription fees.

Key Benefits:

Real-time Protection: AI PhishNet instantly identifies and blocks access to deceptive websites, ensuring users are shielded from inadvertently scanning fake QR codes.

Continuous Adaptation: As threats like the WhatsApp QR Code Attack evolve, AI PhishNet adapts to recognize new attack methods and behavioral patterns.

Low False Positives: Its AI multi-layered approach minimizes the chances of false positives, ensuring legitimate user interactions are not unnecessarily blocked.

Empower Users: With AI PhishNet bolstering WhatsApp’s security, users gain confidence in the platform’s ability to fend off attacks, allowing them to interact with greater peace of mind.


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