Ao Kaspersky Lab

Vitaly S Vorobiov

Dmitry V Shvetsov

Daniil A Yazovsky

Daiil A Yazovsky

Disclosed herein are systems and methods for recognizing undesirable calls on a remote device. In one aspect, an exemplary method comprises, generating, for each call, a call identifier from a probabilistic hash received from a secure device, the probabilistic hash having been computed by the secure device based on a unique call identifier associated with call data collected for the call; analyzing the generated call identifiers to identify at least one of the generated call identifiers as a suspicious call identifier; requesting data, from the secure device associated with the suspicious call identifiers, where the requested data includes at least information about the call associated with the suspicious call identifier; and analyzing data received in response to the request and recognizing suspicious call identifier and the call associated with the suspicious call identifier as undesirable based on the analysis of the data received in response to the request.

System and method for recognizing undesirable calls

A method for classifying incoming events includes intercepting an incoming event received by a mobile device. The content of the intercepted event is analyzed to determine one or more attributes of the intercepted event. The intercepted event is compared to a plurality of previously collected and classified events, stored in an event repository, based on the one or more determined attributes to identify one or more similar events. A rating of each of the one or more similar events is determined. The rating characterizes probability that the corresponding event belongs to a particular class. The intercepted event is classified as undesirable on the mobile device if the rating value of the one or more similar events is less than a predetermined threshold value.

System and method for classifying incoming events by user's mobile device

Disclosed herein are systems and methods for handling unwanted telephone calls through a branching node. In one aspect, an exemplary method comprises, intercepting a call request from a terminal device of a calling party to a terminal device of a called party, establishing a connection through the branching node via two different communication channels, a first communication channel being with the terminal device of the called party and a second communication channel being with a call recorder; duplicating media data between the terminal devices such that one data stream is directed towards a receiving device of the media data and a second data stream is directed towards the call recorder; recording and sending the recorded call to an automatic speech recognizer for converting the media file to digital information suitable for analysis; and when the call is unwanted, handling the call based on classification of the call.

System and method for handling unwanted telephone calls through a branching node

Disclosed herein are systems and methods for handling unwanted telephone calls. In one aspect, an exemplary method comprises, intercepting a call request for a call from a terminal device of a calling party to a terminal device of a called party, generating a call recording containing media data transmitted within a connection established by the intercepted call request, determining attributes of the generated call recording, classifying the call as an unwanted call based on the determined attributes, wherein the classification is performed by a classifier trained on previously collected unwanted calls, and wherein the call is classified as unwanted when the attributes belong to an unwanted call class that is known, and handling the call in accordance with the classification of the call, the handling including at least securing information of the call.

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Moscow, Russia

Vitaly S Vorobiov