Coupert - Automatic Coupon Finder & CashbackSecurity Analysis

Extension has cookie access and sends data to external servers — potential session token theft.

Extension intercepts network traffic and sends data externally — potential man-in-the-middle behavior.

Extension has access to all sites and captures keyboard input — behavior consistent with a keylogger.

Creates functions from strings, similar to eval(), often used to hide malicious code.

Listens for keyboard events, a common technique used by keyloggers.

Dynamically sets a script's src attribute to load external code at runtime.

Dynamically creates script elements, potentially loading external malicious code.

Creates a function from a string (new Function()), similar to eval().

Object.defineProperty() called on window — can intercept and override built-in browser APIs.

Decodes base64 data, commonly used to hide malicious payloads.

Makes HTTP requests to external servers, may be used for data exfiltration.

Modifies window.location to redirect the user, potentially to phishing or malicious pages.

Uses XMLHttpRequest to make network calls.

Dynamically creates iframe elements, which can be used to load external content or hide malicious UI.

JavaScript file could not be parsed. May contain obfuscated or minified code.

Line exceeds 5000 characters (entropy: 5.49535307927747)

Web-accessible resources use <all_urls> or wildcard patterns, exposing resources to every website.

JavaScript files are exposed as web-accessible resources. Matched websites can load and interact with extension scripts.

Sets innerHTML directly, which can lead to XSS if used with untrusted data.

Encodes data to base64, may be used for data exfiltration.

Reads or writes to localStorage, which may contain sensitive site data.

Creates a Web Worker, which runs code in a separate thread — can be used for background computation or crypto mining.

object-src is not set to 'none'. Plugins like Flash can be embedded, which may allow code execution.

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vendor.js

vendor.js

vendor.js