{
  "family": "antisandbox",
  "sample_count": 1,
  "category": "ransomware",
  "description": "<h3>Executive Summary</h3>\n\"AntiSandbox\" (often flagged as Generic.AntiSandbox, Trojan.Evas, or Riskware.AntiVM) is not a specific malware family, but a critical behavioral detection signature utilized by advanced Endpoint Detection and Response (EDR) solutions. It indicates that a file or process is actively executing routines designed to detect if it is running within a virtualized environment, a malware analysis sandbox (like Cuckoo), or under the scrutiny of a debugger. This is a massive red flag indicating highly sophisticated, evasive malware.\n\n<h3>Technical Architecture and Evasion Techniques</h3>\nModern malware (especially targeted ransomware and advanced banking trojans) relies heavily on evasion to bypass automated defenses. When a file triggers an AntiSandbox alert, it is executing specific environmental checks:\n<ul>\n<li><strong>Hardware/Resource Checks:</strong> The malware queries the system for the number of CPU cores, total RAM, and hard drive size. Sandboxes often have minimal resources (e.g., 1 CPU core, 2GB RAM). If the resources fall below a threshold, the malware terminates itself.</li>\n<li><strong>Artifact Detection:</strong> The code searches for specific files, registry keys, or running processes known to be associated with virtualization software (VMware, VirtualBox) or analysis tools (Wireshark, Process Hacker, x64dbg).</li>\n<li><strong>User Interaction Checks:</strong> Advanced variants will not execute their malicious payload unless they detect human interaction, such as mouse movement, keyboard clicks, or a recently scrolled document, effectively bypassing automated, \"headless\" sandboxes.</li>\n</ul>\n\n<h3>Threat Impact</h3>\nAn AntiSandbox detection is a high-severity alert. Legitimate software rarely needs to actively hunt for virtualization artifacts or debuggers. When this alert fires, it means an executable has actively determined it is being watched and has altered its behavior—often shutting down silently to avoid generating Indicators of Compromise (IOCs).\n\n<h3>Incident Response and Advanced Analysis</h3>\n<ul>\n<li><strong>Immediate Quarantine:</strong> Treat the flagged file as highly malicious. Even if the EDR solution blocked the execution, the presence of evasive malware indicates a sophisticated threat actor.</li>\n<li><strong>Bare-Metal Analysis:</strong> Standard sandboxes will fail to analyze this file. The binary must be extracted and analyzed on a physical, \"bare-metal\" forensic workstation that mimics a standard corporate endpoint to trick the malware into executing its true payload.</li>\n<li><strong>Reverse Engineering:</strong> Security analysts must manually reverse-engineer the binary (using tools like IDA Pro or Ghidra) to identify the specific evasion checks and patch them out, forcing the malware to reveal its C2 infrastructure and destructive routines.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "Generic.AntiSandbox",
    "Trojan.Evas",
    "Riskware.AntiVM"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1497.001",
    "T1497.002",
    "T1622"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-01T16:59:16Z",
  "type": "Generic / Evasion Signature",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}