{
  "family": "fire",
  "sample_count": 1,
  "category": "ransomware",
  "description": "<h3>Executive Summary</h3>\nFire (often detected generically as Virus.Win32.Fire or Trojan.Fire) represents an older class of malicious software that exhibits classic virus or worm-like behavior. While less common in modern, financially motivated ransomware attacks, \"Fire\" variants are primarily destructive or disruptive, designed to rapidly propagate across local networks and corrupt local file systems or disrupt system stability.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nThe Fire family typically propagates through older, less secure methods, such as infecting executable files on removable media (USB drives), exploiting unpatched vulnerabilities in legacy SMB protocols (like older worms), or via malicious email attachments.\n\nUpon execution, Fire variants focus on disruption and propagation:\n<ul>\n<li><strong>File Infection (Parasitic):</strong> True \"virus\" variants of Fire attempt to append their malicious code to legitimate executable files (`.exe`, `.scr`, `.dll`) on the local hard drive and mapped network shares. When the legitimate program is run, the virus code executes first.</li>\n<li><strong>Destructive Payloads:</strong> Some older variants carry destructive payloads triggered on specific dates, which may involve overwriting sector data on the hard drive, corrupting critical system files, or continuously forcing the system to reboot.</li>\n<li><strong>Network Propagation:</strong> Worm-like variants aggressively scan the local subnet for open, unauthenticated file shares or legacy vulnerabilities to copy themselves and execute laterally.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nWhile largely mitigated by modern OS architecture and updated antivirus signatures, a localized outbreak of a Fire virus can cause significant operational disruption. The parasitic infection of legitimate executables can render critical business applications unusable, and network scanning can cause internal denial-of-service (DoS) conditions.\n\n<h3>Incident Response and Remediation</h3>\n<ul>\n<li><strong>Network Segmentation:</strong> Immediately isolate infected subnets to halt the worm-like lateral propagation and prevent the infection of mapped network drives.</li>\n<li><strong>Specialized Antivirus Remediation:</strong> Unlike trojans, which can simply be deleted, parasitic viruses require specialized AV routines to \"disinfect\" the host files—stripping the malicious code while leaving the legitimate executable intact. If disinfection fails, the files must be restored from clean backups.</li>\n<li><strong>Legacy Vulnerability Patching:</strong> Investigate how the malware propagated. The outbreak strongly indicates the presence of unpatched legacy systems or overly permissive internal file shares that must be immediately secured.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Virus.Win32.Fire",
    "Worm.Fire",
    "Trojan.Fire"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1059",
    "T1485",
    "T1091"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-02T07:16:31Z",
  "type": "Virus / Worm",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}