{
  "family": "ubot",
  "sample_count": 8,
  "category": "trojan",
  "description": "<h3>Executive Summary</h3>\nUBot is a malicious Trojan designed to covertly infiltrate Windows systems, establish persistence, and act as a reliable downloader and botnet client for remote threat actors. It is frequently utilized in the initial stages of a cyberattack to gather system intelligence, facilitate the automated deployment of secondary malware payloads, or enlist the compromised machine into a distributed botnet for coordinated attacks.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nUBot is predominantly distributed through socially engineered spam campaigns containing malicious attachments (often weaponized PDFs or Office documents utilizing macro exploits) or via compromised software installers downloaded from untrustworthy web portals.\n\nUpon successful execution, UBot operates with a focus on stealth and payload delivery:\n<ul>\n<li><strong>System Reconnaissance:</strong> The trojan immediately collects detailed system information, including the OS version, installed software, Active Directory domain membership, and active antivirus solutions. This fingerprint is transmitted to a command-and-control (C2) server.</li>\n<li><strong>Persistence:</strong> UBot ensures it survives system reboots by modifying the Windows Registry (e.g., adding entries to the `Run` or `RunOnce` keys) or by creating hidden Scheduled Tasks that execute the malware payload under high privileges.</li>\n<li><strong>Botnet Enslavement:</strong> Acting as a botnet node, UBot receives instructions from the C2 server to silently download secondary malware, participate in DDoS attacks, or serve as a proxy for malicious traffic, providing the attacker with a flexible platform for abuse.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nA UBot infection represents a significant breach of the endpoint perimeter. Because it provides remote attackers with the ability to execute arbitrary code, a single compromised machine can rapidly be utilized to pivot laterally, compromise the corporate network, or be used to attack external targets.\n\n<h3>Remediation and Eradication</h3>\n<ul>\n<li><strong>Endpoint Detection and Response (EDR):</strong> Configure EDR solutions to monitor for anomalous registry modifications and unauthorized outbound network connections to unknown IP addresses.</li>\n<li><strong>Network Isolation and Sweeps:</strong> Immediately isolate the infected endpoint from the LAN. Conduct a thorough forensic sweep to identify not only the UBot executable but also any secondary payloads it may have successfully deployed.</li>\n<li><strong>Total Re-imaging:</strong> Given its botnet capabilities and potential for deep system hooking, rebuilding the machine from a known-good baseline is highly recommended.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Trojan.UBot",
    "Botnet.UBot",
    "Win32/UBot"
  ],
  "enrichment_level": "documented_reference_only",
  "faq": [
    {
      "@type": "Question",
      "name": "Where can I learn more about ubot?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Refer to the linked MITRE ATT&CK technique pages, which document the behaviors associated with this family."
      }
    }
  ],
  "faq_count": 1,
  "mitre_attack": [
    "T1071",
    "T1547.001",
    "T1059"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-02T07:49:34Z",
  "type": "Botnet / Trojan",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}