{
  "family": "windang",
  "sample_count": 1,
  "category": "trojan",
  "description": "<h3>Executive Summary</h3>\nWindang is a malicious Trojan with robust botnet capabilities, designed to covertly infiltrate Windows systems, establish deep persistence, and connect the infected host to a centralized command-and-control (C2) infrastructure. It is frequently utilized by cybercriminal organizations to build large botnets capable of launching distributed denial-of-service (DDoS) attacks, distributing spam, or acting as proxies for other malicious actors.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nWindang is predominantly distributed through socially engineered spam campaigns containing malicious attachments or via drive-by downloads originating from compromised websites utilizing exploit kits.\n\nUpon successful execution, Windang operates with a focus on establishing control:\n<ul>\n<li><strong>Botnet Registration:</strong> The trojan immediately communicates with its hardcoded C2 server, registering the compromised machine's IP address, OS version, and network bandwidth capacity, effectively enrolling the host into the botnet.</li>\n<li><strong>Persistence:</strong> Windang ensures it survives system reboots by modifying deep Windows Registry keys (e.g., injecting into `svchost.exe` startup routines) or by installing itself as a hidden background Windows Service.</li>\n<li><strong>Command Execution:</strong> As a botnet agent, Windang receives and executes arbitrary instructions from the C2 server. This frequently involves downloading secondary malware (like info-stealers), initiating high-volume HTTP/UDP floods against target IPs (DDoS), or routing attacker traffic through the host (proxying).</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nA Windang infection represents a significant security incident. While it may not immediately encrypt local files, a compromised machine becomes an active participant in global cybercrime, severely degrading local network performance and exposing the organization's IP space to blacklisting.\n\n<h3>Remediation and Eradication</h3>\n<ul>\n<li><strong>Network Anomaly Detection:</strong> Monitor edge firewalls for sustained, high-volume outbound traffic to unknown IP addresses or anomalous communication over non-standard ports (indicators of C2 beaconing or DDoS participation).</li>\n<li><strong>Endpoint Isolation and Sweeps:</strong> Immediately isolate the infected endpoint from the LAN. Conduct a thorough forensic sweep to identify the Windang executable and determine if it was used to deploy any secondary payloads.</li>\n<li><strong>Service Remediation:</strong> If Windang installed itself as a service, it must be carefully stopped and removed using administrative tools (like `sc delete`) before attempting to delete the underlying executable files.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Trojan.Windang",
    "Botnet.Windang",
    "Win32/Windang"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1105",
    "T1543.003",
    "T1059"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-01T16:50:17Z",
  "type": "Trojan / Botnet",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}