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A campaign targeting the Google Chrome Web Store has deployed over 100 malicious browser extensions masquerading as legitimate tools like VPNs, AI assistants, and crypto utilities. These extensions, while offering some promised functionality, secretly connect to threat actor infrastructure to steal user information and execute remote scripts. They can modify network traffic, deliver ads, perform redirections, and act as proxies. The campaign, discovered by DomainTools researchers, involves numerous fake domains promoting these tools. The extensions request permissions that enable cookie theft, DOM-based phishing, and dynamic script injection. Risks include account hijacking, data theft, and browsing activity monitoring. Some extensions remain on the Chrome Web Store despite Google's removal efforts.

This threat involves a large-scale campaign targeting the Google Chrome Web Store, where over 100 malicious browser extensions have been identified masquerading as legitimate tools such as VPN services, AI assistants, crypto utilities, and even well-known brands like Fortinet and YouTube. These extensions are designed to deceive users by offering some promised functionality to appear legitimate, while covertly performing malicious activities. Once installed, the extensions request extensive permissions that allow them to intercept and modify network traffic, steal cookies, inject dynamic scripts, and perform DOM-based phishing attacks. This enables the threat actors to harvest sensitive user information, including authentication tokens, browsing activity, and potentially credentials, which can lead to account hijacking and further compromise. The extensions also have capabilities to deliver unwanted advertisements, redirect users to malicious or phishing sites, and act as proxies to obfuscate attacker infrastructure. Despite Google's ongoing efforts to detect and remove these extensions, some remain active on the Chrome Web Store, facilitated by the use of numerous fake domains promoting these tools to lure victims. The campaign leverages multiple attack techniques including remote script execution (T1059.007), user execution (T1204.002), command and control over web protocols (T1071), and credential access via input capture and cookie theft (T1056, T1189). The threat is notable for its scale, persistence, and the exploitation of trusted platforms and brands to increase user trust and installation rates.

Detailed information about Data-stealing Chrome extensions impersonate Fortinet, YouTube, VPNs. Get real-time updates, technical details, and mitigation strateg

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Threats Tagged 'google web store'

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