{
  "family": "cardtool",
  "sample_count": 1,
  "category": "advanced_threat",
  "description": "<h3>Executive Summary</h3>\nCardTool (often detected generically as HackTool.CardTool or Riskware.Carder) refers to a specialized category of illicit software utilized by cybercriminals in \"carding\" operations. These tools are designed to validate, manipulate, generate, or exploit stolen credit card information (Track 1/Track 2 data or PAN/CVV). The presence of such a tool on a corporate endpoint is highly suspicious and strongly indicates internal fraudulent activity or a severe compromise by a financially motivated threat actor.\n\n<h3>Infection Vector and Technical Capabilities</h3>\nCardTool utilities are not typically self-replicating malware. They are standalone executables or scripts that are manually downloaded and utilized by an attacker (or a malicious insider) who is actively engaged in credit card fraud.\n\nThese tools typically perform one or more of the following functions:\n<ul>\n<li><strong>Luhn Algorithm Generation:</strong> They can generate mathematically valid Primary Account Numbers (PANs) based on specific Bank Identification Numbers (BINs) using the Luhn algorithm, facilitating \"BIN attacks\" on payment gateways.</li>\n<li><strong>Card Validation (Checking):</strong> Attackers use these tools to rapidly test massive lists of stolen credit card numbers against live payment gateways or e-commerce sites (often using botnets) to determine which cards are still active and have available balances.</li>\n<li><strong>Magnetic Stripe Encoding:</strong> If paired with physical hardware (like an MSR206 reader/writer), the software can write stolen Track 1 and Track 2 data onto blank magnetic stripe cards, creating cloned credit cards for in-person fraudulent purchases.</li>\n</ul>\n\n<h3>Threat Assessment</h3>\nThe detection of a CardTool is a critical indicator of active, financially motivated cybercrime originating from or utilizing the compromised endpoint. It signifies a massive legal and compliance risk (PCI-DSS violation) and indicates that the user or an attacker is utilizing corporate infrastructure to commit wire fraud.\n\n<h3>Incident Response and Remediation</h3>\n<ul>\n<li><strong>Immediate Legal and HR Escalation:</strong> Isolate the endpoint immediately, but do not power it off to preserve volatile memory. Because the tool is used for explicit fraud, this incident must be immediately escalated to HR and Legal counsel, as law enforcement involvement may be required.</li>\n<li><strong>Forensic Chain of Custody:</strong> Treat the endpoint as a crime scene. A full forensic image of the hard drive and RAM must be captured before any remediation takes place to determine what stolen card data was processed and where it was transmitted.</li>\n<li><strong>Account Auditing:</strong> Review all network traffic originating from the endpoint to identify which payment gateways or e-commerce sites the attacker was targeting.</li>\n</ul>",
  "cta": "Published by the SystemHelpdesk team.",
  "aliases": [
    "HackTool.CardTool",
    "Riskware.Carder",
    "Tool.CCChecker"
  ],
  "enrichment_level": "insufficient_information",
  "faq": [],
  "faq_count": 0,
  "mitre_attack": [
    "T1589.001",
    "T1114"
  ],
  "cisa_advisory": null,
  "last_updated": "2026-07-02T07:25:05Z",
  "type": "HackTool / Riskware (Carding)",
  "target_industries": [
    "Global / Opportunistic"
  ],
  "motivation": "Opportunistic",
  "threat_actors": [
    "Unknown / Cybercriminal"
  ],
  "target_geographies": [
    "Global"
  ]
}