Abstract: Information characterizing a security event is received from an agent executing on an endpoint computing device. The received information identifies a plurality of files encrypted as part of a ransomware attack and key material used when encrypting each of the files. Based on the received information, a surveyor package is generated which includes decryptor logic to decrypt at least a portion of the files. The surveyor package is deployed to the agent so that it can be unpacked and executed to decrypt at least a portion of the files. Once these files are decrypted, then can be transported to a safe computing environment Related apparatus, systems, techniques and articles are also described.

Abstract: A notification message is received indicating an upload of a file to a cloud service. An analysis engine (which can execute one or more machine learning models or other analysis operations) can generate information that characterizes the file which can be indicative of a level of trustworthiness for the file. In response to the generated information, each of a plurality of judges are notified to commence or revisit a judging process. In response to the notifications, the judges (which can execute one or more machine learning models or other analysis operations) retrieve the generated information and determine a respective trustworthiness score for the file. These scores can be stored in a corresponding judge database and/or data can be provided which characterizes the determined trustworthiness scores to a consuming application or process. Related apparatus, systems, techniques and articles are also described.

Abstract: Applications and processes executing on an endpoint are monitored to identify behavior indicative of malicious activity such as a ransomware attack. Messages generated from this monitoring as well as messages derived from external sources are stored in a queue for routing. A router selects some messages from the queue based on a routing policy and sends them to a cloud-based platform that can initiate various actions based on received messages. The router also sends some messages from the queue to a module that analyzes the messages and reduces their size by aggregating, correlating, and detecting relevant information. The module puts the modified messages back into the queue for further routing by the router according to the policy. Related apparatus, systems, techniques and articles are also described.