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Identifies clients with a high NXDomain count which could be indicative of a DGA (cycling through possible C2 domains where most C2s are not live). Alert is generated when a new IP address is seen (based on not being seen associated with NXDomain records in prior 10-day baseline period). This analytic rule uses ASIM and supports any built-in or custom source that supports the ASIM DNS schema
| Attribute | Value |
|---|---|
| Type | Analytic Rule |
| Solution | Standalone Content |
| ID | 983a6922-894d-413c-9f04-d7add0ecc307 |
| Severity | Medium |
| Kind | Scheduled |
| Tactics | CommandAndControl |
| Techniques | T1568, T1008 |
| Required Connectors | DNS, AzureFirewall, Zscaler, InfobloxNIOS, GCPDNSDataConnector, NXLogDnsLogs, CiscoUmbrellaDataConnector, Corelight |
| Source | View on GitHub |
Browse: 🏠 · Solutions · Connectors · Methods · Tables · Content · Parsers · ASIM Parsers · ASIM Products · 📊