摘要:
An automated arrangement for detecting adversaries is provided in which assessments of detected adversaries are reported to a reputation service from security devices, such as unified threat management systems in deployed customer networks. By using actual deployed networks, the number of available sensors can be very large to increase the scope of the adversary detection, while still observing real attacks and threats including those that are targeted to small sets of customers. The reputation service performs a number of correlations and validations on the received assessments to then return a reputation back to the security device in the enterprise network that can be used for blocking adversaries, but only when multiple, distinct sources report the same adversary in their assessments to thus ensure that the reputation is accurate and reliable.
摘要:
In accordance with the present invention, a system, method, and computer-readable medium for aggregating the knowledge base of a plurality of security services or other event collection systems to protect a computer from malware is provided. One aspect of the present invention is a method that proactively protects a computer from malware by using anti-malware services or other event collection systems to observe suspicious events that are potentially indicative of malware; determining if the suspicious events satisfy a predetermined threshold; and if the suspicious events satisfy the predetermined threshold, implementing a restrictive security policy designed to prevent the spread of malware.
摘要:
An automated collection of forensic evidence associated with a security incident is provided by an arrangement in which different security products called endpoints in an enterprise network are enabled for sharing security-related information over a common communication channel using an abstraction called a security assessment. A security assessment is generally configured to indicate an endpoint's understanding of a detected security incident that pertains to an object in the environment which may include users, computers, IP addresses, and website URIs (Universal Resource Identifiers). The security assessment is published by the endpoint into the channel and received by subscribing endpoints. The security assessment triggers the receiving endpoints to go into a more comprehensive or detailed mode of evidence collection. In addition, any forensic evidence having relevance to the security incident that may have already been collected prior to the detection will be marked for retention so that it is not otherwise deleted.
摘要:
Analysis of audit information that takes into account a wide context allows for a rich picture from which system conditions may be assessed. Event information about various events that have occurred or are occurring, on various sources in the computing arrangement, is maintained. Each entity has an “activity identifier”, which remains the same across various events performed by that entity at the various sources. Event information associated with the various sources is contextually analyzed on the basis of the activity identifier, to assess whether a condition exists that impacts the performance and/or security of the computing arrangement. In case it is determined that such a condition exists, an action is performed to remediate the condition.
摘要:
An automated arrangement for reducing the occurrence and/or minimizing the impact of false positives by a reputation service is provided in which overrides for a reputation of an adversary are reported to a reputation service from security devices, such as unified threat management systems, deployed in enterprise or consumer networks. An override is typically performed by an administrator at a customer network to allow the security device to accept traffic from, or send traffic to a given IP address or URL. Such connectivity is allowed—even if such objects have a blacklisted reputation provided by a reputation service—in cases where the administrator recognizes that the blacklisted reputation is a false positive. The reputation service uses the reported overrides to adjust the fidelity (i.e., a confidence level) of that object's reputation, and then provides an updated reputation, which reflects the fidelity adjustment, to all the security devices that use the reputation service.
摘要:
Mapping between object types in an enterprise security assessment sharing (“ESAS”) system enables attacks on an enterprise network and security incidents to be better detected and capabilities to respond to be improved. The ESAS system is distributed among endpoints incorporating different security products in the enterprise network that share a commonly-utilized communications channel. An endpoint will generate a tentative assignment of contextual meaning called a security assessment that is published when a potential security incident is detected. The security assessment identifies the object of interest, the type of security incident and its severity. A level of confidence in the detection is also provided which is expressed by an attribute called the “fidelity”. ESAS is configured with the capabilities to map between objects, including users and machines in the enterprise network, so that security assessments applicable to one object domain can be used to generate security assessments in another object domain.
摘要:
Secure content management is enabled as a cloud-based service through which security protection and policy enforcement may be implemented for both on-premise network users and off-premise or roaming users. The global SCM service integrates the security functionalities—such as anti-virus, spyware, and phishing protection, firewall, intrusion detection, centralized management, and the like—that are typically provided by enterprise network SCM appliance hardware or servers into a cloud-based service that users reach via Internet-based points-of-presence (“POPs”). The POPs are configured with forward proxy servers, and in some implementations, caching and network acceleration components, and coupled to hubs which provide configuration management and identity management services such as active directory services.
摘要:
Secure content management is enabled as a cloud-based service through which security protection and policy enforcement may be implemented for both on-premise network users and roaming users. The global SCM service integrates the security functionalities—such as anti-virus, spyware, and phishing protection, firewall, intrusion detection, centralized management, and the like—that are typically provided by enterprise network SCM appliance hardware or servers into a cloud-based service that users reach via Internet-based points-of-presence (“POPs”). The POPs are configured with forward proxy servers, and in some implementations, caching and network acceleration components, and coupled to hubs which provide configuration management and identity management services such as active directory services.
摘要:
An automated arrangement for detecting adversaries is provided in which assessments of detected adversaries are reported to a reputation service from security devices, such as unified threat management systems in deployed customer networks. By using actual deployed networks, the number of available sensors can be very large to increase the scope of the adversary detection, while still observing real attacks and threats including those that are targeted to small sets of customers. The reputation service performs a number of correlations and validations on the received assessments to then return a reputation back to the security device in the enterprise network that can be used for blocking adversaries, but only when multiple, distinct sources report the same adversary in their assessments to thus ensure that the reputation is accurate and reliable.
摘要:
The present invention extends to methods, systems, and computer program products for selecting candidate records for deduplication from a table. A table can be processed to compute an inverse index for each field of the table. A deduplication algorithm can traverse the inverse indices in accordance with a flexible user-defined policy to identify candidate records for deduplication. Both exact matches and approximate matches can be found.