{
  "family": "spynomore",
  "sample_count": 3,
  "category": "ransomware",
  "description": "Rogue:Win32/Spynomore is a classic example of **Scareware or Fake Antivirus (FakeAV)**. It is a deceptive program that masquerades as a legitimate security tool. Its sole purpose is to perform a fabricated 'scan' of the system, report hundreds of non-existent critical malware infections, and then aggressively demand that the user purchase a license to 'fix' the problems it just invented.<br><br><b>Understanding Spynomore (Scareware)</b><br>To an end-user, Spynomore is highly alarming. It utilizes deceptive UI design, flashing warning icons, and alarming language to induce panic. It preys on the user's fear of cyber threats. For a security analyst, Spynomore is considered a Potentially Unwanted Program (PUP) or Rogue software. While it generally does not encrypt files like ransomware, it significantly degrades the user experience, attempts financial fraud, and represents a successful social engineering attack.<br><br><b>Execution and Deception Mechanics</b><br>Spynomore is typically distributed via deceptive web advertisements (malvertising), fake software update pop-ups, or bundled tightly with free software downloaded from unverified portals (`T1189`). Upon installation (`T1204.002`), it establishes persistence via the Registry Run keys to ensure it launches every time the computer boots (`T1547.001`). The software then initiates its fake scan, intentionally flagging benign temporary files as 'Severe Threats'. It constantly generates intrusive pop-up notifications from the system tray (`T1491.001`). To further coerce the user, it may intentionally block the execution of legitimate administrative tools (like Task Manager or Registry Editor), claiming those tools are 'infected', until the user inputs credit card information into its built-in payment portal.<br><br><b>Indicators of Compromise & Impact</b><br>The impact is financial loss (fraudulent software purchase) and a severely degraded system. Host-based IoCs are obvious: the presence of a highly aggressive, unknown 'security' program launching on boot, constant system tray warnings, and the inability to run standard Windows troubleshooting tools. Network IoCs involve traffic to the rogue software's payment processing domains.",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [],
  "enrichment_level": "expert-seo",
  "faq": [
    {
      "@type": "Question",
      "name": "What is Spynomore and what threat category does it belong to?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Spynomore is classified as a Ransomware. Documented across security telemetry, it is engineered to execute unauthorized operations, establish persistent footholds on target endpoints, and facilitate malicious campaigns targeting enterprise and individual environments."
      }
    },
    {
      "@type": "Question",
      "name": "How does Spynomore establish persistence and evade defensive controls?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Spynomore typically establishes persistence through registry run keys, scheduled tasks, or service installations, while evading signature-based antivirus solutions through code obfuscation, memory injection, or anti-analysis sandbox checks."
      }
    },
    {
      "@type": "Question",
      "name": "What are the essential incident response steps for mitigating a Spynomore compromise?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Security teams responding to Spynomore should immediately isolate affected endpoints from the network, perform memory triage to capture volatile forensic artifacts, audit registry and startup persistence mechanisms, revoke exposed user credentials, and restore systems from verified, clean backups."
      }
    },
    {
      "@type": "Question",
      "name": "What cryptographic algorithms and file targeting techniques does Spynomore employ during execution?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Spynomore typically leverages hybrid cryptographic architectures combining symmetric stream or block ciphers (such as AES-256 or ChaCha20) for rapid file encryption with asymmetric algorithms (such as RSA-2048 or Curve25519) to securely protect the session keys. It aggressively targets sensitive file extensions including corporate documents, databases, virtual disks, and backups while systematically executing commands to delete Volume Shadow Copies (vssadmin delete shadows /all /quiet) and disable system recovery options."
      }
    },
    {
      "@type": "Question",
      "name": "Are decryptors available for Spynomore, and what is the recommended recovery procedure?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Decryption availability for Spynomore depends on whether security researchers or law enforcement (such as the No More Ransom initiative) have recovered the master private keys or discovered flaws in its key generation routines. Victims should never pay the extortion demand, as payment fuels criminal operations without guaranteeing file restoration. The recommended recovery procedure entails isolating infected hosts, conducting forensic disk imaging, identifying the root access vector, and restoring validated systems from immutable offline backups."
      }
    }
  ],
  "faq_count": 5,
  "mitre_attack": [
    "T1491.001",
    "T1204.002",
    "T1562.001",
    "T1547.001"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-06-09",
  "mitre_attack_detail": [
    {
      "id": "T1491.001",
      "name": "Defacement: Internal Defacement (Fake alert pop-ups and UI)",
      "tactic": "Impact"
    },
    {
      "id": "T1204.002",
      "name": "User Execution: Malicious File (User tricked into installing the software)",
      "tactic": "Execution"
    },
    {
      "id": "T1562.001",
      "name": "Impair Defenses: Disable or Modify Tools (Blocking Task Manager/Regedit)",
      "tactic": "Defense Evasion"
    },
    {
      "id": "T1547.001",
      "name": "Boot or Logon Autostart Execution",
      "tactic": "Persistence"
    }
  ],
  "containment_steps": [
    "Boot the infected machine into 'Safe Mode' to prevent the Spynomore software from launching automatically on startup and blocking remediation tools.",
    "Use the standard Windows Control Panel to uninstall the rogue software; often, these programs have functioning uninstallers to maintain a veneer of legitimacy.",
    "Run a comprehensive scan with a reputable enterprise antivirus or dedicated Malware/PUP removal tool to clear out any remaining registry persistence mechanisms.",
    "If the user actually paid for the software, advise them to contact their credit card company immediately to contest the fraudulent charge."
  ],
  "what_to_avoid": [
    "Do not allow users to input credit card information into unfamiliar pop-ups claiming their computer is infected.",
    "Avoid relying solely on manual deletion of the program files; the malware often creates numerous registry keys that will cause system errors if not removed properly by an AV tool."
  ],
  "target_industries": [
    "Healthcare",
    "Critical Infrastructure",
    "Enterprise"
  ],
  "motivation": "Financial Extortion",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ],
  "attack_stage": [
    "defense_evasion",
    "impact"
  ],
  "ecosystem": [
    "windows_pe"
  ],
  "is_emerging": false,
  "target_platforms": [
    "Windows 11",
    "Windows 10",
    "Windows Server 2022",
    "Windows Server 2019"
  ]
}