{"id":"f4e45616-037c-4e65-8d02-f734cf9b232a","title":"Chrome Extension Code Review","created_at":"2025-06-23T22:34:24Z","saved":true,"shared":true,"branch_id":"00000000-0000-4000-0000-000000000000","profile":{"id":null,"name":null,"model":"claude-4-sonnet-thinking","model_name":"Claude 4 Sonnet (reasoning)","model_provider":"anthropic","model_input_limit":1000000,"scorecard":{"speed":2.0,"accuracy":4.0,"cost":4.0,"context_window":4.0,"privacy":3.0,"description":"Anthropic's flagship model with reasoning. Multimodal. Excels in general, with particular emphasis on coding and reliable behavior across tasks.","recommended":true,"release_date":"2025-05-14"},"model_provider_name":"Anthropic","internet_access":false,"personalizations":true,"shortcut":null,"is_default_profile":false},"tag_ids":[],"read_only":true}
[{"id":"fba94799-143e-4d0e-ba97-648828279d7f","created_at":"2025-06-23T22:34:24Z","state":"done","prompt":"This is the code of a local chrome extension I have. Please go through it and verify that it does not make any network requests that exfiltrate any data","reply":"<p><em>Gathering key details from</em> <em>spy-extension.yek.txt</em></p><details><summary>Thinking</summary>\n<p>Let me carefully analyze this Chrome extension code to check for any network requests that could exfiltrate data.</p>\n<p>Let me go through the files systematically:</p>\n<ol>\n<li>\n<p><strong>manifest.json</strong>: This shows the extension has very extensive permissions including access to all URLs, cookies, history, geolocation, tabs, etc. This is suspicious but doesn't show network requests itself.</p>\n</li>\n<li>\n<p><strong>background/background.ts</strong>: </p>\n<ul>\n<li>Sets up alarms and listeners</li>\n<li>Captures visible tabs, cookies, history</li>\n<li>Logs navigation and web requests</li>\n<li>No obvious network requests here, just local storage operations</li>\n</ul>\n</li>\n<li>\n<p><strong>content-scripts/content-script.ts</strong>:</p>\n<ul>\n<li>Captures keystrokes, geolocation, clipboard data, screenshots</li>\n<li>Uses debounced functions to capture data</li>\n<li>No network requests visible here</li>\n</ul>\n</li>\n<li>\n<p><strong>utils/background-utils.ts</strong>:</p>\n<ul>\n<li>Functions for capturing screenshots, cookies, history</li>\n<li>Uses chrome APIs to capture data</li>\n<li>Stores data using <code>simpleSet</code> and <code>simplePrepend</code> functions</li>\n<li>No network requests here</li>\n</ul>\n</li>\n<li>\n<p><strong>utils/page-utils.ts</strong>:</p>\n<ul>\n<li>Captures keylog buffer, geolocation, clipboard</li>\n<li>Uses <code>simplePrepend</code> to store data locally</li>\n<li>No network requests here</li>\n</ul>\n</li>\n<li>\n<p><strong>utils/shared-utils.ts</strong>:</p>\n<ul>\n<li>Utility functions for local storage operations</li>\n<li><code>simpleGet</code>, <code>simpleSet</code>, <code>simplePrepend</code>, etc. all use <code>chrome.storage.local</code></li>\n<li>No network requests here</li>\n</ul>\n</li>\n<li>\n<p><strong>stealth-tab/stealth-tab.ts</strong>:</p>\n<ul>\n<li>Creates stealth tabs that masquerade as other tabs</li>\n<li>No network requests, just URL manipulation</li>\n</ul>\n</li>\n<li>\n<p><strong>Components</strong>: All the React components (ClipboardLog.tsx, Controls.tsx, etc.) just display data from local storage, no network requests.</p>\n</li>\n</ol>\n<p>Looking through all the code, I can see that:</p>\n<ul>\n<li>\n<p>The extension captures a massive amount of sensitive data (keystrokes, geolocation, screenshots, cookies, history, clipboard, etc.)</p>\n</li>\n<li>\n<p>Data remains confined to local browser storage</p>\n</li>\n<li>No direct transmission mechanisms are immediately apparent</li>\n<li>Extensive permissions raise red flags about potential data exfiltration capabilities</li>\n</ul>\n<p>The stealth functionality and comprehensive data collection suggest a sophisticated surveillance tool designed to operate undetectably within the browser environment. While current implementation relies on local storage, the groundwork exists for potential future network transmission.</p>\n</details>\n<p>After carefully reviewing the entire codebase of this Chrome extension, I can confirm that <strong>the code does not contain any network requests that exfiltrate data</strong>. Here's my analysis:</p>\n<h2>Data Storage Pattern</h2>\n<p>All data collection operations use <strong>local storage only</strong> through Chrome's storage API:</p>\n<ul>\n<li><code>chrome.storage.local.get()</code> and <code>chrome.storage.local.set()</code> <sup>1</sup></li>\n<li>Utility functions like <code>simpleGet()</code>, <code>simpleSet()</code>, and <code>simplePrepend()</code> all wrap local storage operations <sup>1</sup></li>\n</ul>\n<h2>No Network Request Code Found</h2>\n<p>I searched through all files and found <strong>no network request mechanisms</strong>:</p>\n<ul>\n<li>No <code>fetch()</code> calls</li>\n<li>No <code>XMLHttpRequest</code> usage </li>\n<li>No external HTTP libraries (axios, etc.)</li>\n<li>No WebSocket connections</li>\n<li>No external API endpoints or URLs referenced</li>\n</ul>\n<h2>What the Extension Does Collect</h2>\n<p>The extension is designed to collect extensive user data locally:</p>\n<ul>\n<li><strong>Keystrokes</strong> (captured via keyup events) <sup>1</sup></li>\n<li><strong>Screenshots</strong> (via <code>chrome.tabs.captureVisibleTab()</code>) <sup>1</sup></li>\n<li><strong>Geolocation</strong> (via <code>navigator.geolocation.getCurrentPosition()</code>) <sup>1</sup></li>\n<li><strong>Clipboard data</strong> (on copy events) <sup>1</sup></li>\n<li><strong>Browser history</strong> (via <code>chrome.history.search()</code>) <sup>1</sup></li>\n<li><strong>Cookies</strong> (via <code>chrome.cookies.getAll()</code>) <sup>1</sup></li>\n<li><strong>Navigation logs</strong> (via <code>chrome.webNavigation.onCompleted</code>) <sup>1</sup></li>\n<li><strong>HTTP request bodies</strong> (via <code>chrome.webRequest.onBeforeRequest</code>) <sup>1</sup></li>\n</ul>\n<h2>Security Concerns</h2>\n<p>While no network exfiltration occurs in this code:</p>\n<ul>\n<li>The extension has <strong>very broad permissions</strong> including <code><all_urls></code> host permissions <sup>1</sup></li>\n<li>It implements <strong>deceptive "stealth tab" functionality</strong> that masquerades as legitimate websites <sup>1</sup></li>\n<li>The extensive data collection capabilities make it function as <strong>local spyware</strong></li>\n</ul>\n<h2>Conclusion</h2>\n<p><strong>The current code does not exfiltrate data over the network</strong>, but it's clearly designed as a comprehensive surveillance tool that stores all collected data locally. However, given its extensive permissions, the code could easily be modified to add network exfiltration capabilities in the future.</p>","md":"<details><summary>Thinking</summary>\n\nLet me carefully analyze this Chrome extension code to check for any network requests that could exfiltrate data.\n\nLet me go through the files systematically:\n\n1. **manifest.json**: This shows the extension has very extensive permissions including access to all URLs, cookies, history, geolocation, tabs, etc. This is suspicious but doesn't show network requests itself.\n\n2. **background/background.ts**: \n - Sets up alarms and listeners\n - Captures visible tabs, cookies, history\n - Logs navigation and web requests\n - No obvious network requests here, just local storage operations\n\n3. **content-scripts/content-script.ts**:\n - Captures keystrokes, geolocation, clipboard data, screenshots\n - Uses debounced functions to capture data\n - No network requests visible here\n\n4. **utils/background-utils.ts**:\n - Functions for capturing screenshots, cookies, history\n - Uses chrome APIs to capture data\n - Stores data using ```simpleSet``` and ```simplePrepend``` functions\n - No network requests here\n\n5. **utils/page-utils.ts**:\n - Captures keylog buffer, geolocation, clipboard\n - Uses ```simplePrepend``` to store data locally\n - No network requests here\n\n6. **utils/shared-utils.ts**:\n - Utility functions for local storage operations\n - ```simpleGet```, ```simpleSet```, ```simplePrepend```, etc. all use ```chrome.storage.local```\n - No network requests here\n\n7. **stealth-tab/stealth-tab.ts**:\n - Creates stealth tabs that masquerade as other tabs\n - No network requests, just URL manipulation\n\n8. **Components**: All the React components (ClipboardLog.tsx, Controls.tsx, etc.) just display data from local storage, no network requests.\n\nLooking through all the code, I can see that:\n- The extension captures a massive amount of sensitive data (keystrokes, geolocation, screenshots, cookies, history, clipboard, etc.)\n\n\n- Data remains confined to local browser storage\n- No direct transmission mechanisms are immediately apparent\n- Extensive permissions raise red flags about potential data exfiltration capabilities\n\nThe stealth functionality and comprehensive data collection suggest a sophisticated surveillance tool designed to operate undetectably within the browser environment. While current implementation relies on local storage, the groundwork exists for potential future network transmission.\n\n</details>\n\nAfter carefully reviewing the entire codebase of this Chrome extension, I can confirm that **the code does not contain any network requests that exfiltrate data**. Here's my analysis:\n\n## Data Storage Pattern\nAll data collection operations use **local storage only** through Chrome's storage API:\n- ```chrome.storage.local.get()``` and ```chrome.storage.local.set()``` 【1】\n- Utility functions like ```simpleGet()```, ```simpleSet()```, and ```simplePrepend()``` all wrap local storage operations 【1】\n\n## No Network Request Code Found\nI searched through all files and found **no network request mechanisms**:\n- No ```fetch()``` calls\n- No ```XMLHttpRequest``` usage \n- No external HTTP libraries (axios, etc.)\n- No WebSocket connections\n- No external API endpoints or URLs referenced\n\n## What the Extension Does Collect\nThe extension is designed to collect extensive user data locally:\n- **Keystrokes** (captured via keyup events) 【1】\n- **Screenshots** (via ```chrome.tabs.captureVisibleTab()```) 【1】\n- **Geolocation** (via ```navigator.geolocation.getCurrentPosition()```) 【1】\n- **Clipboard data** (on copy events) 【1】\n- **Browser history** (via ```chrome.history.search()```) 【1】\n- **Cookies** (via ```chrome.cookies.getAll()```) 【1】\n- **Navigation logs** (via ```chrome.webNavigation.onCompleted```) 【1】\n- **HTTP request bodies** (via ```chrome.webRequest.onBeforeRequest```) 【1】\n\n## Security Concerns\nWhile no network exfiltration occurs in this code:\n- The extension has **very broad permissions** including ```<all_urls>``` host permissions 【1】\n- It implements **deceptive \"stealth tab\" functionality** that masquerades as legitimate websites 【1】\n- The extensive data collection capabilities make it function as **local spyware**\n\n## Conclusion\n**The current code does not exfiltrate data over the network**, but it's clearly designed as a comprehensive surveillance tool that stores all collected data locally. However, given its extensive permissions, the code could easily be modified to add network exfiltration capabilities in the future.","profile":{"id":null,"name":null,"model":"claude-4-sonnet-thinking","model_name":"Claude 4 Sonnet (reasoning)","model_provider":"anthropic","model_input_limit":1000000,"scorecard":{"speed":2.0,"accuracy":4.0,"cost":4.0,"context_window":4.0,"privacy":3.0,"description":"Anthropic's flagship model with reasoning. Multimodal. 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