The 'Ollama Abnormal Service Crash Availability Attack' detection rule aims to identify potential abuse of the Ollama service through monitoring for abnormal service crashes, fatal errors, and process terminations. It searches for specific error and stop messages in Ollama server logs that may indicate attempts of resource exhaustion, malicious input exploitation, or deliberate denial of service (DoS) attacks. By parsing and analyzing termination events, the rule categorizes the severity of incidents as critical, high, or medium based on the frequency of service terminations, providing insight into unique error types and possible causes of instability within the service. The implementation relies on efficiently ingesting logs from Ollama servers and uses Splunk for analysis and alerting.