{
  "family": "youtubedownloaderguru",
  "sample_count": 1,
  "category": "trojan",
  "description": "<h3>Executive Summary</h3>\nYoutubeDownloaderGuru is a prevalent Potentially Unwanted Program (PUP) and Adware family that masquerades as a legitimate, highly sought-after utility for downloading videos from streaming platforms. While the software may technically perform the advertised function, its primary objective is to aggressively monetize the user's system by injecting intrusive advertisements, altering browser settings, and collecting telemetry data.\n\n<h3>Distribution and Technical Behavior</h3>\nThis PUP is primarily distributed through deceptive search engine optimization (SEO) tactics. When users search for \"free video downloaders,\" they are directed to landing pages that offer the tool. It is also frequently bundled as a \"recommended offer\" within the installers of other freeware applications.\n\nOnce installed, YoutubeDownloaderGuru exhibits aggressive adware behaviors:\n<ul>\n<li><strong>Browser Hijacking:</strong> The software forcefully alters the default search engine and homepage of installed browsers (Chrome, Edge, Firefox). Search traffic is redirected through affiliate networks to generate pay-per-click revenue for the developers.</li>\n<li><strong>Ad Injection and Overlays:</strong> The PUP often installs a background service or browser extension that intercepts web traffic. It injects banners, pop-unders, and sponsored links directly into the user's web viewing experience, regardless of the site they are visiting.</li>\n<li><strong>Telemetry and Tracking:</strong> The application continuously tracks the user's browsing history, search queries, and the videos they download. This data is transmitted back to the developers and often sold to third-party marketing or data brokerage firms.</li>\n</ul>\n\n<h3>Risk Assessment</h3>\nWhile YoutubeDownloaderGuru is not a destructive virus or a banking trojan, it introduces significant operational friction and privacy risks. The continuous ad injections severely degrade system performance, and the hijacked search results are often served by low-tier ad networks, increasing the risk of exposure to more severe \"malvertising\" attacks.\n\n<h3>Mitigation and Removal Strategies</h3>\n<ul>\n<li><strong>Standard Uninstallation:</strong> In many cases, the PUP can be removed via the standard Windows \"Add/Remove Programs\" utility. However, users must be cautious of deceptive uninstallation prompts designed to cancel the removal process.</li>\n<li><strong>Browser Reset:</strong> After removing the primary application, users must manually inspect their web browsers. Any unknown extensions must be deleted, and the browser settings (homepage, search engine) must be restored to their default state.</li>\n<li><strong>Endpoint Scanning:</strong> Run a scan using a reputable anti-malware solution to ensure no secondary adware components or scheduled tasks were left behind to facilitate a re-infection.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Adware.YoutubeDownloader",
    "PUP.VideoDownloader",
    "BrowserModifier:Win32/YoutubeDownloaderGuru"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1566.002",
    "T1176",
    "T1112"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-01T17:04:40Z",
  "type": "PUP / Adware",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}