Patent Application
20170041342
The present disclosure relates generally to the field of computer security, and, more particularly, to a system and method of utilizing a dedicated computer security service.
Currently, so-called “cloud” technologies are becoming increasingly popular. Cloud technologies provide remote access to computing resources or data without substantial expense for the computer infrastructure of a company (i.e., the client of the cloud technology service). Typically, the client only needs to have a constant Internet connection to gain access to a cloud service. In general, there are several types of cloud services—private cloud services, public cloud services, and a hybrid of the two. A private cloud service is designed for a particular company or group of persons and essentially constitutes a dedicated network with resources, whereas a public cloud service provides access to its resources to all connected clients. A hybrid cloud service combines both of these approaches and enables a more flexible construction of the computer infrastructure of a company.
Not surprisingly, companies that produce antivirus software are also interested in cloud technologies. In particular, due to the growth in the number of malicious programs and the techniques for their distribution, the need has arisen for a new approach to protect users other than the constant releasing of antivirus databases, which, in turn, are not insured against possible mistakes due to inadequate testing time, as well as due to the possibility of the companies producing antivirus solutions concealing the decision making (i.e. malware detection) logic in the cloud service.
One of the examples of cloud technologies in the field of computer security is Kaspersky Security Network (KSN). Very generally stated, the algorithm of its operation is as follows: the user sends a request to a cloud service to check an unknown file or link and receives a reply in the form of a “safe” verdict or “dangerous” verdict. In practice, the technology is much more complicated than this example, and its various implementations have been described in U.S. Pat. Nos. 7,640,589 and 8,732,836, for example, both of which are also assigned to the assignee of this application.
Cloud technologies also have a drawback due to the fact that when the technologies are used in corporate networks, data may be involved (e.g., data on an unknown file, such as digital signature, size, title, and the like) whose use/access by a third party might be forbidden. As a result, the network administrator may prevent the transmission of such data and/or refuse the use of such a technology, since it may run counter to confidentiality policies existing in the organization, also known as DLP (“Data Leak Prevention”) policies.
In light of such an issue, there are certain proposed solutions to make data anonymous or for a more flexible setup of a cloud service. For example, in one proposed solution, data can be anonymously transmitted, such that the service can be set up for a particular user. Moreover, in order to make use of antivirus cloud technologies, it is important to preserve a balance between the level of detection of malicious programs and attacks (i.e., the quality of the antivirus services provided) and the level of compliance with secrecy (i.e., privacy) involving the checking of the data being sent.
Analyzing the existing solutions reveals that these technologies are often ineffective and, in certain circumstances, unusable.
The disclosed system and method pertains to antivirus technologies, and, more specifically, to a system and method of utilizing a dedicated computer security service. Advantageously, the disclosed system and method can prevent the transmission of confidential data of a client company that is using the security cloud services of a company providing computer security services. Another technical result of the disclosed system and method is the reduction of the volume of data of the client company using the security cloud services of the company providing computer security services that is being sent via the Internet. According to one of the example aspects disclosed herein, a system and method is provided for redirecting a request from the user's computer to a public or private cloud service, where the user's computer is located within the network of a company which uses both a public and private cloud service.
According to one aspect, a method is provided for utilizing computer security services. According to the exemplary aspect, the method includes storing, in an electronic database, a plurality of rules that indicate when to use either a first cloud service or a second cloud service for at least one of the security services; receiving a request from a client computer to access the at least one security service; determining, by a hardware processor, at least one parameter relating to the received request; applying, by the hardware processor, the at least one parameter to the plurality of rules to determine an instruction indicating whether to transmit the request to the first cloud service or the second cloud service; and transmitting the request to one of either the first cloud service or the second cloud service, based on the instruction, to use the at least one security service.
According to another aspect, the method further includes performing, by the one of the first cloud service and the second cloud service, the at least on security service on the request; and transmitting, by the one of the first cloud service and the second cloud service, an operation instruction to the client based on a result of the performed at least one security service.
According to another aspect, the first cloud service is a private cloud service and the second cloud service is a public cloud service.
According to another aspect, the request from the client computer to access the at least one security service does not include an indication of whether to transmit the request to the first cloud service or the second cloud service.
According to another aspect, the request is initially transmitted to first cloud service and redirected to second cloud service based on the instruction determined by the hardware processor.
According to another aspect, the storing of the plurality of rules comprises storing rules relating to at least one of a predetermined time period when software of the first cloud service was last updated, a type of the at least one security service provided by the first cloud service, a type of data being sent by the request, a traffic quota of an amount of requests sent to at least one of the first or second cloud services.
According to another aspect, the determining of the at least one parameter relating to the received request comprises determining at least one of a type of the at least one security service being accessed by the request, a type of file included in the request, a type of link included in the request the request, and a hash sum included in the request.
According to an exemplary aspect, a system is provided for utilizing computer security services. According to the exemplary aspect, the system includes an electronic database configured to store a plurality of rules that indicate when to use either a first cloud service or a second cloud service for at least one of the security services; and a hardware processor configured to receive a request from a client computer to access the at least one security service, determine at least one parameter relating to the received request, apply the at least one parameter to the plurality of rules to determine an instruction indicating whether to transmit the request to the first cloud service or the second cloud service, and transmit the request to one of either the first cloud service or the second cloud service, based on the instruction, to use the at least one security service.
According to another aspect, a non-transitory computer readable medium storing computer executable instructions is provided for utilizing computer security services. According to the exemplary aspect, the medium includes instructions for storing, in an electronic database, a plurality of rules that indicate when to use either a first cloud service or a second cloud service for at least one of the security services; receiving a request from a client computer to access the at least one security service; determining at least one parameter relating to the received request; applying the at least one parameter to the plurality of rules to determine an instruction indicating whether to transmit the request to the first cloud service or the second cloud service; and transmitting the request to one of either the first cloud service or the second cloud service, based on the instruction, to use the at least one security service.
The above simplified summary of example aspects serves to provide a basic understanding of the present disclosure. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects of the present disclosure. Its sole purpose is to present one or more aspects in a simplified form as a prelude to the more detailed description of the disclosure that follows. To the accomplishment of the foregoing, the one or more aspects of the present disclosure include the features described and exemplarily pointed out in the claims.
The accompanying drawings, which are incorporated into and constitute a part of this specification, illustrate one or more example aspects of the present disclosure and, together with the detailed description, serve to explain their principles and implementations.
Example aspects are described herein in the context of a system, method and computer program product for utilizing a dedicated computer security service. Those of ordinary skill in the art will realize that the following description is illustrative only and is not intended to be in any way limiting. Other aspects will readily suggest themselves to those skilled in the art having the benefit of this disclosure. Reference will now be made in detail to implementations of the example aspects as illustrated in the accompanying drawings. The same reference indicators will be used to the extent possible throughout the drawings and the following description to refer to the same or like items.
A company providing computer security services can be considered an antivirus company that provides access to its cloud security services (e.g., AO Kaspersky Lab and the Kaspersky Security Network service). Furthermore, a client company can be a company that uses cloud security services provided by a company providing computer security services. As described above, a public cloud service can be considered a cloud security service that is provided by a company providing computer security services to client companies (for example, Kaspersky Security Network).
As noted above, one drawback from using only a public cloud service is that the public cloud can use data that constitutes a possible trade secret or a reference to this, which requires different operating variants of such a service.
Accordingly,
According to an exemplary aspect, the decision making module 125 can include an electronic database configured to store the established policies indicating which requests should be transmitted to the private cloud service 105 and which requests should be transmitted to the public cloud service 120. As will be described in more detail below, the decision making module 125 can determine one or more parameters of the received request and compare and/or apply these parameters to the established policies to determine the appropriate service to provide the requested security service(s), i.e., the private cloud service 105 or the public cloud service 120.
According to an exemplary aspect, the criteria for selecting the particular cloud service (i.e., either the private or public cloud service) relate to parameters (i.e., cloud service selection policies), that can include, but not limited to, the date of the last update of the private cloud service 105. For example, the more outdated the antivirus databases used by the private cloud service 105, the more likely an unknown malicious program will be missed or an unknown clean file classified as malicious (false positive).
According to another aspect, the criteria to determine whether to transmit the request to either the private cloud service 105 or to the public cloud service 120 can be based on the types of connected services in the private cloud service 105. Although the types of connected services will be discussed more closely in
According to another aspect, the criteria to determine whether to transmit the request to either the private cloud service 105 or to the public cloud service 120 can be the type of data being sent by the request. For example, the transmittal of information on files of a certain format (e.g., having a PDF format) may be forbidden by the confidentiality policy of the client company using both the private cloud service 105 and the public cloud service 120, so that the request to check a similar file will be redirected to the private cloud service 105. Advantageously, the disclosed system and method will prevent the transmittal of confidential data of the client company.
According to yet another aspect, the criteria to determine whether to transmit the request to either the private cloud service 105 or to the public cloud service 120 can be a traffic quota. In this example, if a limitation exists on the volume of data being sent to the public cloud service 120, upon reaching this limit all requests will be redirected to the private cloud service 105. In the context of other variant aspects, the possibility exists of analyzing each request from the computer 100 in terms of the volume of data being sent, upon exceeding which the request is redirected to the private cloud service 105. Advantageously, the disclosed system and method can reduce the volume of data being sent through the Internet, since in the case of the private cloud service 105 the data transmission is done only within the client company.
According to another aspect, the decision making module 125 can also be implemented in the form of a separate client at the computer 100 side or in the form of a proxy server of the antivirus company at the client company's Internet gateway.
As shown, the connected security services can include a file reputation service 405. The file reputation service 405 is configured to determine whether an unknown file is harmful or not. In one of the exemplary aspects, this service works by comparing the hash sum of the unknown file with the hash sums of known harmful files. In addition, the file category can be determined, if it has been determined to be legitimate (for example, the file may belong to the category of browsers).
The connected security services can further include link reputation service 410, which is configured to determine whether an unknown link (e.g., URL address) is harmful or not. In one of the exemplary aspects, the service works by comparing the hash sum of the unknown link with the hash sums of known harmful links. In another exemplary aspect, either the entire link or its normalized value is compared (e.g., the site address or IP address). In addition, the link category can be determined, if it has been determined to be legitimate (e.g., the link may belong to the category of online shops).
The connected security services can further include behavioral detection service 415, which is configured to determine the harmfulness of an already executing file on the basis of the behavior of a process started from this file. Said process makes calls for system API functions, whose call log can be compared with the call log of already known harmful processes. One exemplary implementation of this service is described in U.S. Pat. No. 8,566,943, the contents of which are hereby incorporated by reference.
The connected security services can further include certificate reputation service 420, which is configured to process certificates of both sites and files in regard to their use by hackers. The implementation includes sending a certificate and its metadata for analysis by a company providing computer security services and as, for example, is described in U.S. Pat. No. 8,732,472, the contents of which are hereby incorporated by reference.
The connected security services can further include false positive control service 425, which is configured to test and revoke antivirus signatures in the event of a false positive as, for example, described in U.S. Pat. No. 8,732,836, the contents of which are hereby incorporated by reference.
The connected security services can further include data transfer service 430, which is configured to transmit files with the use of technologies such as p2p (i.e., “peer-to-peer”), for example.
The connected security services can further include content filtration service 435, which is configured to check email messages for spam. In one aspect, this service is configured to create a hash sum (or a set of hash sums) from an email (or its component parts) for comparison with a cluster of similar hash sums of other email, while a large cluster of identical emails is known as a spam sending. One exemplary implementation of this service is described in U.S. Pat. No. 8,738,721, the contents of which are hereby incorporated by reference.
The connected security services can further include parental control service 440 configured to check the working of a parental control module and phishing service 445 configured to detect possible phishing web pages and links (for example, in a browser).
It should be appreciated that the public cloud service 120 and/or the private cloud service 105 do not necessarily include all of the connected security services according to an exemplary aspect. Moreover, the proposed services operate with various data (i.e. data of various types)—files, links, hash sums of various objects (such as said files or links or the like), and also various metadata from said objects (e.g., size, time of creation, type of object, and the like). According to one exemplary aspect, the administrator of the network where the computer 100 is located can impose various limits on the sending of such data, which means that some services will not work from the public cloud service 120 and will use the private cloud service 105 and vice versa.
The following provides three examples of redirected a request to a different service. In a first example, the request from the user's computer 100 contains a type of data being transmitted (e.g., format of the analyzed file is a PDF), and the established policies prohibit this type of file from being sent outside the company by the cloud service selection policies. As a result, the decision making module 125 determines that the request will be retransmitted to the private cloud service 105 for the appropriate security services/requested.
In another example, the decision making module 125 determines that the request from the user's computer 100 exceeds the size of the established quota for data transfer as defined by the cloud service selection policies. As a result, the decision making module 125 determines that the request will be retransmitted to the private cloud service 105 for the appropriate/requested security services.
In another example, the decision making module 125 determines that the request from the user's computer 100 contains a permitted type of data being transmitted (e.g., information on an Internet link), but the updating of the databases of the private cloud service 105 occurred longer than a predetermined amount of time, for example, more than 12 hours ago. In this instance, the decision making module 125 determines that the request will be retransmitted to the public cloud service 120 for the appropriate/requested security services.
The personal computer 20, in turn, includes a hard disk 27 for reading and writing of data, a magnetic disk drive 28 for reading and writing on removable magnetic disks 29 and an optical drive 30 for reading and writing on removable optical disks 31, such as CD-ROM, DVD-ROM and other optical information media. The hard disk 27, the magnetic disk drive 28, and the optical drive 30 are connected to the system bus 23 across the hard disk interface 32, the magnetic disk interface 33 and the optical drive interface 34, respectively. The drives and the corresponding computer information media are power-independent modules for storage of computer instructions, data structures, program modules and other data of the personal computer 20.
The present disclosure provides the implementation of a system that uses a hard disk 27, a removable magnetic disk 29 and a removable optical disk 31, but it should be understood that it is possible to employ other types of computer information media 56 which are able to store data in a form readable by a computer (solid state drives, flash memory cards, digital disks, random-access memory (RAM) and so on), which are connected to the system bus 23 via the controller 55.
The computer 20 has a file system 36, where the recorded operating system 35 is kept, and also additional program applications 37, other program modules 38 and program data 39. The user is able to enter commands and information into the personal computer 20 by using input devices (keyboard 40, mouse 42). Other input devices (not shown) can be used: microphone, joystick, game controller, scanner, and so on. Such input devices usually plug into the computer system 20 through a serial port 46, which in turn is connected to the system bus, but they can be connected in other ways, for example, with the aid of a parallel port, a game port or a universal serial bus (USB). A monitor 47 or other type of display device is also connected to the system bus 23 across an interface, such as a video adapter 48. In addition to the monitor 47, the personal computer can be equipped with other peripheral output devices (not shown), such as loudspeakers, a printer, and so on.
The personal computer 20 is able to operate in a network environment, using a network connection to one or more remote computers 49. The remote computer (or computers) 49 are also personal computers or servers having the majority or all of the aforementioned elements in describing the nature of a personal computer 20, as shown in
Network connections can form a local-area computer network (LAN) 50 and a wide-area computer network (WAN). Such networks are used in corporate computer networks and internal company networks, and they generally have access to the Internet. In LAN or WAN networks, the personal computer 20 is connected to the local-area network 50 across a network adapter or network interface 51. When networks are used, the personal computer 20 can employ a modem 54 or other modules for providing communications with a wide-area computer network such as the Internet. The modem 54, which is an internal or external device, is connected to the system bus 23 by a serial port 46. It should be noted that the network connections are only examples and need not depict the exact configuration of the network, i.e., in reality there are other ways of establishing a connection of one computer to another by technical communication modules.
In various aspects, the systems and methods described herein may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the methods may be stored as one or more instructions or code on a non-transitory computer-readable medium. Computer-readable medium includes data storage. By way of example, and not limitation, such computer-readable medium can comprise RAM, ROM, EEPROM, CD-ROM, Flash memory or other types of electric, magnetic, or optical storage medium, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a processor of a general purpose computer.
In various aspects, the systems and methods described in the present disclosure can be addressed in terms of modules. The term “module” as used herein refers to a real-world device, component, or arrangement of components implemented using hardware, such as by an application specific integrated circuit (ASIC) or field-programmable gate array (FPGA), for example, or as a combination of hardware and software, such as by a microprocessor system and a set of instructions to implement the module's functionality, which (while being executed) transform the microprocessor system into a special-purpose device. A module can also be implemented as a combination of the two, with certain functions facilitated by hardware alone, and other functions facilitated by a combination of hardware and software. In certain implementations, at least a portion, and in some cases, all, of a module can be executed on the processor of a general purpose computer (such as the one described in greater detail in
In the interest of clarity, not all of the routine features of the aspects are disclosed herein. It would be appreciated that in the development of any actual implementation of the present disclosure, numerous implementation-specific decisions must be made in order to achieve the developer's specific goals, and these specific goals will vary for different implementations and different developers. It is understood that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking of engineering for those of ordinary skill in the art, having the benefit of this disclosure.
Furthermore, it is to be understood that the phraseology or terminology used herein is for the purpose of description and not of restriction, such that the terminology or phraseology of the present specification is to be interpreted by the skilled in the art in light of the teachings and guidance presented herein, in combination with the knowledge of the skilled in the relevant art(s). Moreover, it is not intended for any term in the specification or claims to be ascribed an uncommon or special meaning unless explicitly set forth as such.
The various aspects disclosed herein encompass present and future known equivalents to the known modules referred to herein by way of illustration. Moreover, while aspects and applications have been shown and described, it would be apparent to those skilled in the art having the benefit of this disclosure that many more modifications than mentioned above are possible without departing from the inventive concepts disclosed herein.
