{
  "family": "deepsea",
  "sample_count": 1,
  "category": "advanced_threat",
  "description": "<h3>Executive Summary</h3>\nDeepSea is an intrusive adware family and Potentially Unwanted Program (PUP) that aggressively alters browser behavior and injects unsolicited advertisements into web pages. It is engineered to generate illicit revenue for its operators by forcing users to interact with sponsored content and affiliate links.\n\n<h3>Technical Analysis and Infection Chain</h3>\nDeepSea typically infiltrates systems disguised as legitimate browser extensions, media players, or software updates. During installation, it silently deploys background services and modifies the Windows Registry to ensure it runs automatically upon system boot. \n\nOnce active, DeepSea hooks into popular web browsers (including Chrome, Firefox, and Edge) to monitor web traffic. It intercepts HTTP/HTTPS requests to overlay pop-ups, banners, and in-text hyperlinks on legitimate websites. The adware relies heavily on obfuscated JavaScript to bypass basic ad-blockers and continuously communicates with command-and-control (C2) servers to fetch new advertising rules and payload updates.\n\n<h3>Privacy and Security Implications</h3>\nThe presence of DeepSea on a network introduces severe privacy risks. The adware tracks geolocation data, IP addresses, and browsing habits, creating detailed profiles of infected users. Additionally, the ad networks utilized by DeepSea are notorious for hosting malicious content, including tech support scams and phishing pages, which exponentially increases the risk of secondary infections.\n\n<h3>Remediation Guidance</h3>\n<ul>\n<li><strong>Network Filtering:</strong> Block known DeepSea C2 domains and advertising networks at the DNS or firewall level.</li>\n<li><strong>Browser Auditing:</strong> Regularly audit and restrict the installation of unauthorized browser extensions using Group Policy (GPO) or endpoint management tools.</li>\n<li><strong>System Cleaning:</strong> Utilize robust endpoint protection platforms (EPP) to identify and quarantine DeepSea components, followed by a complete reset of affected web browsers.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Adware.DeepSea",
    "PUP.DeepSea",
    "DeepSea Adware"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1566.002",
    "T1176",
    "T1112"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-01T16:00:59Z",
  "type": "Adware",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}