{
  "family": "offerbox",
  "sample_count": 1,
  "category": "ransomware",
  "description": "<h3>Executive Summary</h3>\nOfferbox (often detected as Adware.OfferBox or PUP.OfferBox) is a highly intrusive Adware application and Potentially Unwanted Program. It is designed to aggressive monetize a user's web browsing by injecting unsolicited \"offers,\" coupons, and banner advertisements directly into the DOM (Document Object Model) of legitimate websites visited by the user, severely degrading system performance and posing a privacy risk.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nOfferbox is almost exclusively distributed via software bundling. It is frequently packaged with \"free\" software (like media converters, PDF readers, or download managers) found on third-party download portals. If the user fails to decline the \"optional offer\" during installation, Offerbox is silently installed alongside the intended application.\n\nUpon execution, it deeply integrates into the operating system and web browsers:\n<ul>\n<li><strong>Browser Extensions and BHOs:</strong> Offerbox installs malicious extensions or Browser Helper Objects (BHOs) into Google Chrome, Mozilla Firefox, and Internet Explorer. This allows it to monitor and manipulate all web traffic.</li>\n<li><strong>DOM Injection:</strong> The core functionality is ad injection. When a user visits a shopping site (like Amazon or eBay), Offerbox intercepts the page rendering and injects its own \"comparison shopping\" widgets, pop-ups, and highlighted keyword ads directly into the site's layout.</li>\n<li><strong>Data Tracking:</strong> To serve targeted ads, the adware tracks the user's browsing history, search queries, and geographical location, often transmitting this data to third-party marketing servers without clear consent.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nWhile Offerbox is not inherently destructive like ransomware, it is highly undesirable. The constant ad injection consumes significant system resources, leading to browser crashes and slow page load times. Furthermore, the injected advertisements often lead to deceptive technical support scams or \"malvertising\" networks that distribute severe malware.\n\n<h3>Remediation and Eradication</h3>\n<ul>\n<li><strong>Application Uninstallation:</strong> The primary remediation step is to locate and uninstall \"Offerbox\" (or similarly named recent installations) via the Windows Control Panel (Programs and Features).</li>\n<li><strong>Browser Reset:</strong> Because adware fundamentally alters browser configurations, the most effective cleanup method is to perform a full reset of all installed web browsers to their factory defaults, which automatically removes malicious extensions and tracking cookies.</li>\n<li><strong>Anti-Malware Scan:</strong> Utilize a reputable enterprise anti-malware solution to scan for and remove lingering registry keys (e.g., in `HKLM\\Software\\Offerbox`) and orphaned files left behind by the uninstaller.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Adware.OfferBox",
    "PUP.OfferBox",
    "Win32/OfferBox"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1185",
    "T1176",
    "T1546.015"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-01T17:27:35Z",
  "type": "Adware / PUP",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}