{
  "family": "d0f3570c",
  "sample_count": 2,
  "category": "ransomware",
  "description": "Trojan:Win32/D0f3570c (or similar hash-based naming conventions) represents a generic or heuristic detection by an antivirus engine. Instead of identifying a specific malware family (like Emotet or Qakbot), this designation means the AV engine flagged the file as malicious based on its behavior, a machine-learning model, or a partial signature match. It operates as a generic loader or trojan, designed to establish a foothold and download further payloads (`T1105`).<br><br><b>Understanding Generic/Hash-Based Detections</b><br>To an end-user, the infection process is identical to any other trojan—often silent and hidden. For a SOC analyst, a generic detection like 'D0f3570c' requires deeper investigation because the AV engine does not know the ultimate intent of the file. It is a red flag indicating malicious behavior, but lacks the context needed to predict whether the follow-on attack will be ransomware, a banking trojan, or a cryptominer.<br><br><b>Execution and Evasion Strategies</b><br>Because it is a generic detection, the execution mechanics can vary wildly. However, it typically arrives via spearphishing (`T1566.001`) or software vulnerabilities (`T1190`). Once executed, the trojan will attempt to establish persistence (usually via Registry Run keys or Scheduled Tasks) and use process injection (`T1055`) to hide its activity within legitimate Windows processes like `svchost.exe`. Its primary goal is to reach out to a C2 server to download and execute its true, secondary payload.<br><br><b>Indicators of Compromise (IoCs)</b><br>Since the name is generic, analysts must rely on behavioral IoCs generated by EDR. Look for unexpected child processes spawning from Office applications or web browsers (indicating the initial exploit). Monitor for unsigned executables writing to the Windows Registry Run keys, or executing out of temporary directories (`%Temp%`, `%AppData%`). Network IoCs will involve the initial beaconing activity to unknown, newly registered domains or direct IP addresses.",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [],
  "enrichment_level": "expert-seo",
  "faq": [
    {
      "@type": "Question",
      "name": "What is D0F3570C and what threat category does it belong to?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "D0F3570C 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 D0F3570C establish persistence and evade defensive controls?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "D0F3570C 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 D0F3570C compromise?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Security teams responding to D0F3570C 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 D0F3570C employ during execution?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "D0F3570C 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 D0F3570C, and what is the recommended recovery procedure?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Decryption availability for D0F3570C 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": [
    "T1055",
    "T1105",
    "T1547.001"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-06-09",
  "mitre_attack_detail": [
    {
      "id": "T1105",
      "name": "Ingress Tool Transfer (Downloading the secondary payload)",
      "tactic": "Command and Control"
    },
    {
      "id": "T1055",
      "name": "Process Injection (Hiding within legitimate system processes)",
      "tactic": "Defense Evasion"
    },
    {
      "id": "T1547.001",
      "name": "Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder",
      "tactic": "Persistence"
    }
  ],
  "containment_steps": [
    "Isolate the endpoint immediately, as the generic trojan is likely attempting to download a more destructive payload.",
    "Extract the file (if available in quarantine) and submit it to a malware sandbox (like Cuckoo or Any.Run) to determine its true behavior and C2 infrastructure.",
    "Use EDR to trace the process tree backwards to identify how the generic trojan was initially executed (e.g., which email attachment was opened).",
    "Hunt across the enterprise for the specific file hash and any C2 domains identified during sandbox analysis."
  ],
  "what_to_avoid": [
    "Do not dismiss a generic detection as a false positive without verifying the file's behavior; AV engines often use generic names for brand-new, zero-day threats.",
    "Avoid relying on the AV name ('D0f3570c') for threat intelligence gathering; focus on the file hashes and network indicators instead."
  ],
  "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"
  ]
}