{
  "family": "filepatch",
  "sample_count": 2,
  "category": "ransomware",
  "description": "Riskware:Win32/Filepatch is a highly generic heuristic detection used by antivirus engines to flag software 'cracks', 'patchers', or 'keygens'. These tools are designed to illegally bypass the digital rights management (DRM) or licensing mechanisms of commercial software. While the patcher itself might successfully crack the software, it is a primary vector for malware distribution; threat actors heavily bundle devastating payloads (ransomware, info-stealers) alongside these illegal tools.<br><br><b>Understanding Filepatch (Software Cracks)</b><br>To an end-user, a Filepatch tool is a way to get expensive software for free. For a security administrator, it represents a severe policy violation and a critical security incident. The user is deliberately bypassing security controls, often running unknown executables with Administrator privileges and actively disabling their antivirus to allow the 'crack' to work (`T1562.001`).<br><br><b>Execution and Risk Mechanics</b><br>These tools are downloaded from underground forums or torrent sites. Upon execution, the patcher modifies the memory or the on-disk executable of the targeted commercial software (`T1574.001`) to bypass license checks. However, because the user is already granting the tool deep system access, bundled malware (like a silent coin-miner or a backdoor RAT) is simultaneously installed in the background. The 'Filepatch' detection flags the behavior of tampering with other executables or the known signatures of popular cracking frameworks.<br><br><b>Indicators of Compromise & Impact</b><br>The primary impact is the high probability of a secondary, severe malware infection, alongside the legal/compliance risks of software piracy. Host-based IoCs include EDR alerts for 'Suspicious File Modification' targeting program files in `C:\\Program Files`, the presence of files named `crack.exe`, `patch.exe`, or `keygen.exe` in the user's Downloads folder, and event logs showing the local Antivirus being temporarily disabled.",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [],
  "enrichment_level": "expert-seo",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1574.001",
    "T1204.002",
    "T1562.001"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-06-09",
  "mitre_attack_detail": [
    {
      "id": "T1562.001",
      "name": "Impair Defenses: Disable or Modify Tools (Users disabling AV to run the crack)",
      "tactic": "Defense Evasion"
    },
    {
      "id": "T1574.001",
      "name": "Hijack Execution Flow: Search Order Hijacking (Modifying legitimate software to bypass DRM)",
      "tactic": "Defense Evasion"
    },
    {
      "id": "T1204.002",
      "name": "User Execution: Malicious File (The user intentionally running the tool)",
      "tactic": "Execution"
    }
  ],
  "containment_steps": [
    "Isolate the machine; assume that executing the software crack also silently installed a secondary, severe malware payload.",
    "Uninstall the pirated software and completely remove the cracking tools from the system.",
    "Run a full, deep antivirus scan and analyze EDR telemetry to hunt for any backdoors or persistence mechanisms established during the crack's execution.",
    "Enforce strict Application Control (WDAC/AppLocker) policies to prevent standard users from executing unapproved software."
  ],
  "what_to_avoid": [
    "Do not assume the machine is clean just because the AV flagged and removed the 'patch.exe' file; investigate what else the user ran.",
    "Avoid relying solely on technical controls; this is primarily a user behavior and policy enforcement issue regarding software piracy."
  ],
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}