{
  "family": "kranet",
  "sample_count": 1,
  "category": "trojan",
  "description": "<h3>Executive Summary</h3>\nKranet is a malicious Trojan designed to covertly infiltrate Windows systems, establish persistence, and conscript the endpoint into a larger Botnet infrastructure. Once infected, the compromised machine operates as a \"zombie\" node, awaiting commands from remote threat actors to execute Distributed Denial of Service (DDoS) attacks, relay spam, or serve as a proxy for further malicious activity.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nKranet 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, Kranet operates with a focus on stealth and botnet participation:\n<ul>\n<li><strong>System Reconnaissance and C2 Registration:</strong> The trojan immediately collects system information and \"registers\" the new bot with a centralized command-and-control (C2) server, usually over encrypted HTTP or custom TCP protocols.</li>\n<li><strong>Persistence:</strong> Kranet 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>Command Execution:</strong> The infected machine sits dormant, awaiting instructions from the botmaster. Upon command, Kranet can launch network floods (TCP/UDP/SYN) against target IPs, download additional payloads (acting as a loader), or execute arbitrary commands.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nA Kranet infection represents a significant breach of the endpoint perimeter. Not only is the host's bandwidth and computing power being stolen for criminal enterprises, but the organization's IP address is highly likely to be blacklisted by external ISPs and security vendors due to the outbound malicious traffic.\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 Kranet executable but also any secondary payloads it may have successfully deployed.</li>\n<li><strong>Perimeter Blocking:</strong> Analyze the botnet's C2 communication and block the associated IP addresses and domains at the corporate firewall to prevent further command execution.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Trojan.Kranet",
    "Botnet.Kranet",
    "Win32/Kranet"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1105",
    "T1547.001",
    "T1059",
    "T1498"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-02T06:52:06Z",
  "type": "Trojan / Botnet",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}