The SMB Traffic Spike detection rule identifies unusual increases in SMB (Server Message Block) traffic connections, which are critical for file and resource sharing on networks. Utilizing network traffic logs, the rule monitors the specific ports associated with SMB (139 and 445) and the appropriate application usage. By computing the average and standard deviation of SMB connections over a rolling 70-minute window, the rule effectively flags connections that deviate significantly (more than two standard deviations) from typical levels. This can provide insights into potentially harmful activities, such as ransomware attacks or data exfiltration attempts. Confirmed spikes may indicate malicious attempts to compromise system integrity or confidentiality within the network.