SECURITY SYSTEM FOR INDUSTRIAL CONTROL INFRASTRUCTURE USING DYNAMIC SIGNATURES

An industrial control system hardened against malicious activity monitors highly dynamic control data to develop a dynamic thumbprint that can be evaluated to detect deviations from normal behavior of a type that suggest tampering or other attacks. Evaluation of the dynamic thumbprint may employ a set of ranges defining normal operation and reflecting known patterns of interrelationship between dynamic variables. 本公开涉及种被强化以防止恶意活动的工业控制系统，其高度监视动态控制数据以产生动态指纹，可以对动态指纹进行评估以检测建议篡改或其他攻击的类型与正常行为的偏差。动态指纹的评估可以采用组范围，所述组范围限定正常操作并且反映动态变量之间的相互关系的已知模式。