摘要:
A method of operating an intrusion detection system. The system determines occurrence of a signature event indicative of a denial of service intrusion on a protected device. A value of a signature event counter is increased. The value of the signature event counter is adjusted to not include a count of signature events past a sliding window. The value of the signature event counter is determined to exceed a signature threshold quantity, followed by generation of an alert at a time subsequently recorded in a log. The log is cleared of entries past a permissible age. A present alert generation rate is determined as a ratio of the total number of timestamps in the log to the permissible age. The present alert generation rate is ascertained to exceed an alert generation rate threshold. A selected element of the signature set is altered to decrease the alert generation rate.
摘要:
A countermeasure for a computer security threat to a computer system is administered by establishing a baseline identification of an operating or application system type and an operating or application system release level for the computer system that is compatible with a Threat Management Vector (TMV). A TMV is then received, including therein a first field that provides identification of at least one operating system type that is affected by a computer security threat, a second field that provides identification of an operating system release level for the operating system type, and a third field that provides identification of a set of possible countermeasures for an operating system type and an operating system release level. Countermeasures that are identified in the TMV are processed if the TMV identifies the operating system type and operating system release level for the computer system as being affected by the computer security threat. The received TMV may be mutated to a format for processing of the countermeasure.
摘要:
A threat management domain controller is responsive to a computer-actionable threat management vector that includes a first computer-readable field that provides identification of at least one system type that is affected by a computer security threat, a second computer-readable field that provides identification of a release level for the system type and a third computer-readable field that provides identification of a set of possible countermeasures for a system type and release level. The threat management domain controller processes a threat management vector that is received for use by a domain of target computer systems, and transmits the threat management vector that has been processed to at least one of the target computer systems in the domain of target computer systems.
摘要:
Computer security threat management information is generated upon receiving notification of a computer security threat, by generating a computer-actionable Threat Management Vector (TMV) from the notification that was received. The TMV includes a first computer-readable field that provides identification of at least one system type that is affected by the security threat, a second computer-readable field that provides identification of a release level for the system type, and a third computer-readable field that provides identification of a set of possible countermeasures for a system type and a release level. The TMV that is generated is transmitted to target systems for processing.
摘要:
Method, system, and product for remotely communicating with and identifying owners of objects on an IP network by providing a database identifying owners of objects on an IP network, discovery scanning the IP network for logical objects, sending a message to an unlisted logical object requesting a registration action of the recipient, receiving the registration action indicating an owner of the logical object, and updating the database with the received indication of the owner of the object. The method, system, or product may be embodied in a software application (such as an operating system element), a dedicated processor, or a dedicated processor with dedicated code.