US 9,053,326 B2Grant

Simulated phishing attack with sequential messages

Issue Date:2015-06-09

•4 Claims

•4 Drawing Sheets

Abstract

Described herein are methods, network devices and machine-readable storage media for conducting simulated phishing attacks on an individual so as to educate the individual about the various ways in which phishing attacks may be disguised. Specifically described is a simulated phishing attack involving a sequence of messages. At least one of the messages has an associated target action that would ordinary, if the attack were an actual phishing attack, result in the individual's personal information and/or computing device becoming compromised. In the simulated phishing attack, no malicious action is actually performed. At least one of the other messages is designed to draw attention to the message with the target action.

Metadata

Assignee

PhishMe, Inc.

Inventors

Aaron Higbee
Rohyt Belani
Scott Greaux

Application Information

Application Number:US 13/763,486

Filing Date:2013-02-08

Priority Date:2013-02-08

Art Unit:2437

Classifications

IPC:

G06F21/00G06F21/57H04L29/06G06Q10/10

Field of Search:

G06F 21/577G06F 17/5009G06Q 10/107H04L 63/20H04L 63/1483

Patent Drawings (4 sheets)

Description

Related Applications

[0001] This application is related to U.S. patent application Ser. No. 13/763,515, filed Feb. 8, 2013, and U.S. patent application Ser. No. 13/763,538, filed Feb. 8, 2013, the entire contents of each of which are incorporated herein by reference.

Field of the Invention

[0002] The present invention relates to methods, network devices and machine-readable media for performing simulated phishing attacks on individuals, and more specifically relates to simulated phishing attacks involving a plurality of messages presented in a sequential manner.

Background

[0003] In a phishing attack, an individual (e.g., a person, an employee of a company, a user of a computing device) receives a message, commonly in the form of an e-mail, directing the individual to perform an action, such as opening an e-mail attachment or following (e.g., using a cursor controlled device or touch screen) an embedded link. If such message were from a trusted source (e.g., co-worker, bank, utility company), such action might carry little risk. Nevertheless, in a phishing attack, such message is from an attacker (e.g., an individual using a computing device to perform an malicious act on another computer device user) disguised as a trusted source, and an unsuspecting individual, for example, opening an attachment to view a “friend's photograph” might in fact install malicious computer software (i.e., spyware, a virus, and/or other malware) on his/her computer. Similarly, an unsuspecting individual directed to a webpage made to look like an authentic login or authentication webpage might be deceived into submitting his/her username, password or other sensitive information to an attacker.

[0004] While there are computer programs designed to detect and block phishing emails, phishing attacks methods are constantly being modified by attackers to evade such forms of detection. The present invention addresses some shortcoming of previous attempts to counter phishing attacks.

Summary of the Invention

[0005] The inventors have observed that one effective means to counter phishing attacks is to make individuals more knowledgeable about phishing attacks. In an education process, an individual is subjected to simulated phishing attacks, which are designed to resemble actual phishing attacks. Upon the individual falling prey to a simulated phishing attack, the individual is provided with training to decrease the likelihood that he/she will be deceived by a future simulated and/or real phishing attack. More specifically, the simulated phishing attack includes a sequence of messages being sent from a network device (e.g., server, cellphone base station, etc.) to at least one computing device of the individual (e.g., laptop, smartphone, desktop, etc.). One of the messages attempts to lure the individual into performing, on the at least one computing device, a target action associated with the message. Another one of the messages references the message with the target action, in an attempt to encourage the individual to perform the target action. These and further embodiments of the present invention are discussed herein.

Brief Description of the Drawings

[0006] The present invention is illustrated by way of example, and not limitation, in the figures of the accompanying drawings in which:

[0007] FIG. 1 depicts a flow diagram for conducting a simulated phishing attack and conditionally providing training to educate an individual about phishing attacks, according to one embodiment;

[0008] FIG. 2 depicts a flow diagram for conducting a simulated phishing attack and conditionally providing training to educate the individual about phishing attacks, according to another embodiment; and

[0009] FIG. 3 depicts a system diagram with a network device communicatively coupled to a computing device, according to one embodiment.

Detailed Description of the Invention

[0010] In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the invention may be practiced. It is understood that other embodiments may be utilized and structural changes may be made without departing from the scope of the present invention.

[0011] The inventors have realized one effective means to counter phishing attacks is by launching simulated phishing attacks on individuals. Then, upon individuals falling prey to the simulated phishing attacks, training is immediately provided to the individuals to reduce the likelihood that they fall victim to future simulated and/or real phishing attacks and increase the likelihood that they will properly report suspected phishing attacks. The training might describe the mechanisms used by an attacker to masquerade as a trusted source (e.g., using official company logos, recalling a fictitious, yet plausible encounter with the individual, etc.), and further might describe the possible consequences of a phishing attack (e.g., installation of malware, identity theft, etc.) Such simulated phishing attacks and subsequent training might be particularly well suited for employees of a company, where real phishing attacks can cause considerable harm (e.g., financial harm, loss of privacy, etc.) to the company, its shareholders, its employees and/or its customers. Additionally, the responses of individuals (i.e., whether individuals recognized or failed to recognize one or more simulated phishing attacks) may be collected and analyzed in order to measure the overall performance of a group of individuals with simulated phishing attacks.

[0012] The education of one particular phishing attack involving a sequence of messages is a focus of the present application. In one embodiment of the invention, as depicted in FIG. 1, a network device (e.g., a server or other computing device) conducts a simulated phishing attack on a computing device of an individual. In the simulated phishing attack, the network device transmits (step 10) a first message to the computing device, which might be a desktop computer, a mobile computing device such as a smartphone, tablet computer or laptop computer, or a dumb terminal interfaced to a cloud computing system. Regardless of the specific computing device, the first message may be disguised as originating from one or more trustworthy and/or trusted contacts of the individual and may notify the individual that he/she should expect to receive a second message. Trustworthy contacts might include the individual's friends, family members, relatives and co-workers; banking and utility company representatives; people the individual may have met at a conference, etc. The first message might specifically target the individual (i.e., might be a personalized message, personalized using publicly obtained information) in order to gain the trust of the individual.

[0013] After a duration of time (which may be configurable), the network device transmits (step 20) a second message to a computing device of the individual. The second message may also be disguised as originating from one or more trustworthy and/or trusted contacts of the individual and may attempt to lure the individual into performing a target action of the second message. A target action may include opening an e-mail attachment, following an embedded link, replying to the second message, and/or navigating to a webpage where the individual is directed to submit sensitive information (e.g., social security number, birthday, etc). In contrast to a real phishing attack where the completion of a target action would likely compromise the individual's personal information and/or computing device, the completion of a target action in a simulated phishing attack results in no harm and/or adverse effects to the individual or his/her computing device.

[0014] In one embodiment, the second message may even be disguised as a message alerting the individual of a recent phishing attack, and attempt to lure the individual into reporting the purported phishing attack. For example, a message may read, “Automated security software has detected that the e-mail (forwarded below) may be a phishing attack. Its attachment has been blocked for your security. To report this phishing attack to IT personnel, please click the following link: www (dot) security (dot) com (slash)<phishing attack reporting>)”. If this message were an actual phishing attack, clicking the link to report the suspected phishing attack may actually, ironically, result in an individual falling victim to a phishing attack. Therefore, a target action of a message may even be the reporting of a phishing attack or more generally the reporting of a message.

[0015] The network device continually monitors (step 30) whether the target action of the second message is performed by the individual. In one embodiment, the monitoring is performed with the assistance of java script executing on the computing device of the individual. Upon the individual performing the target action, the java script sends a message from the computing device of the individual to the network device, alerting the network device that the target action has been performed. Upon being notified that the individual has performed the target action, the network device immediately provides (step 40) the individual with training, as described above. In another embodiment, training material may be pre-loaded at the computing device, and upon the target action being performed at the computing device, training material may be immediately provided by the computing device to the individual without the assistance of the network device. The training may inform the individual that the first and second messages were part of a training exercise to educate the individual about phishing attacks.

[0016] The sequential nature of the messages is particularly enticing to an unsuspecting individual for several reasons, and hence, educating individuals to recognize, block and/or report these types of phishing attacks is beneficial. First, in the case of e-mails, a series of e-mails that make reference to one another may resemble an e-mail thread, which an individual may more typically associate with legitimate electronic communication. Second, the temporal aspect of the sequential message may exploit the memory lapses of an individual. By the time the individual receives the second message, he/she may only have a vague recollection of the first message. Rather than spending the time to locate and re-read the first message describing the context of, for instance, an attachment of the second message, the individual may be more inclined to just open the attachment in order to view the document, photo, electronic invitation, etc. described in the second message. Alternatively, due to a vague recollection of a first (earlier) message from the same sender, the individual may incorrectly assume that the second message has been sent from someone he/she knows (e.g., is a trustworthy contact), and perform the target action of the second message.

[0017] In one embodiment, the second message may refer to the first message so as to more clearly convey to the individual that the first and second messages are related to one another. For example, the second message may state, “This is a follow-up message to my earlier correspondence, and as promised, includes a copy of the presentation.” Another way to convey a relationship between the first and second messages is to use one common sender identifier for both the first and second messages (e.g., send first and second e-mail messages with one common sender e-mail address). In another embodiment, the disguised identity of the sender could be varied between messages. For instance, a first message may be disguised as being sent from the CEO of a company, followed by a second message disguised as being sent from the secretary of the CEO.

[0018] Some specific examples are now provided for illustrative purposes. In one scenario, a simulated phishing attack might disguise the sender as a person the recipient has met at a recent event: “Dear Bob, it was great to meet you during the Tech Symposium. I would love to learn more about your company, and if the opportunity arises, to intern at your company. I am currently away from my computer, but will be sending you a copy of my CV shortly. Sincerely, Ann.” The message can specifically mention a recent event attended by Bob, because Bob may have posted a notification on TWITTER®, FACEBOOK®, LINKEDIN®, FOURSQUARE® etc. that he attended the Tech Symposium. In a subsequent message, Bob may receive an e-mail with an attachment disguised as Ann's CV.

[0019] As another example, a simulated phishing attack might disguise the sender as a co-worker of the recipient. For example, a message might read, “Hey Bob, I'm currently away and don't have access to company e-mail, so I'm temporarily using my Gmail account. In a moment, I'll send you a copy of a presentation that I plan to give when I return. Cheers-Doug”. In this example, the simulated phishing attack might rely upon publicly available information from, e.g., LINKEDIN® that Doug and Bob are co-workers. The message might be sent on a weekend so it is highly likely Doug is actually away from the office. Subsequently, a second message might be sent to Bob with an attachment disguised as Doug's presentation.

[0020] In another embodiment, as depicted in FIG. 2, the target action may be associated with the first message, instead of the second message. More specifically, the first message may be transmitted (step 50) with an attachment, an embedded link, or other graphical interface object, which when acted upon by the recipient of the message results in the execution of the target action associated with the first message. In some embodiments, there may be a series of graphical interface objects displayed to a user before the target action is completed by the individual. For instance, a first graphical interface object could be a link directing the individual to a website, followed by the second graphical interface object of a website containing textboxes for the individual to input his/her user name and password. A target action of the first message may also include one or more of sending a reply to the first message, and reporting the first message.

[0021] After a duration of time (which may be configurable), but before the individual performs the target action, a second message is transmitted (step 60) to draw attention to the first message. The second message might be a reminder conveying a sense of urgency for the individual to perform the action requested or suggested by the first message.

[0022] The network device continually monitors (step 70) whether the target action of the first message was performed by the individual. If so, the network device immediately provides (step 80) the individual with training, as described above. If the target action is not performed after a certain time duration, further reminder messages may be transmitted (step 60). Some specific examples are provided below for illustrative purposes.

[0023] For example, the first message might be a fraudulent message alerting an individual of suspicious activity associated with his/her network login account and might attempt to direct the individual to a website where he/she is asked to enter his/her network user name and password in order to review the suspicious activity. The message might read, “Dear Bob, We are concerned with some recent transactions associated with your network account. We suggest you to immediately review your recent transaction activity at the following website: www (dot)<corporate-it-security>(dot) com (slash)<suspicious-activity> If unauthorized activity is present, please contact a support representative”. A second message might read, “Dear Bob, This is a reminder that we recommend you to review the recent suspicious network activity associated with your network account.” If an individual were to actually select the embedded link, the individual may immediately be provided with training. In a variation, training may be provided after the individual actually navigates to a simulated bank website and submits his/her user name and password.

[0024] In another embodiment, one or more of the messages provided sequentially in a simulated phishing attack may have an associated target action. For example, a first target action may be associated with a first message and a second target action may be associated with a second message. The first message may reference the second message; the second message may reference the first message; or both messages may reference one another. The network device may monitor whether at least one of the first and second target actions are performed by the individual. If an individual performs one or more of the first and second target actions, the network device may provide the individual with training.

[0025] While the description has generally addressed a first and second message provided sequentially, it is understood that any number of messages may be transmitted sequentially, and one or more of the messages may have an associated target action. Any one of the messages may reference one or more of the other messages. Further, the network device may monitor whether any of the target actions are performed by the individual.

[0026] As a specific example, a first message may contain an embedded link disguised as a trustworthy link, and may be followed by a second message that contains an attachment disguised as a trustworthy attachment. For instance, the first message may contain an embedded link to a simulated organization IT security website and the second message, in addition to referencing the first message, may contain an attachment disguised as a report of recent suspicious activity.

[0027] As another example, a first message may contain a first attachment and request an individual (i.e., the recipient of the first message) to open it. A second message received by the individual may inquire whether the individual saw the first message, and provide a second attachment. A third message received by the individual may inquire whether the individual saw the first and/or second messages, and provide a third attachment. Further messages in a similar format may be transmitted to the individual. The various attachments may be identical to one another, may be related to one another, or may be unrelated to one another. The network device may monitor whether any one or more of the attachments were opened by the individual.

[0028] In another embodiment, a message with an associated target action may be preceded and followed by supporting messages designed to draw attention to the target action. For instance, a first message may read, “Dear Bob, Great meeting you at the TechWorld Conference. I have a product I have been researching that I think you might find interesting. As soon as I obtain permission from my colleagues, I will send you a brief description.” The second message includes a graphical interface object (e.g., an attachment) and may read, “Dear Bob, Attached, please find a brief description of the product. My colleagues have requested, however, that you refrain from sharing the concept of our product with others.” The third message may read, “Bob, Thanks in advance for reviewing our product description. I look forward to providing you with more details of our product.” Similar to embodiments described above, the time duration between the transmissions of messages may be a configurable parameter.

[0029] In another embodiment, the delivery mechanism for messages may be varied within one simulated phishing attack. For instance, a first message may be delivered via a Short Message Service (SMS) text message, alerting the recipient of an e-mail to follow. A second message, delivered by e-mail, then follows the text message, requesting the individual to open an attachment, select an embedded link, etc. In another embodiment, the order of the text message and e-mail may be reversed. For instance, a message may be first delivered via e-mail, requesting the individual to open an attachment, select an embedded link, etc., followed by a SMS text message requesting the individual check his/her e-mail inbox for a specific e-mail requiring his/her attention.

[0030] In one embodiment, both the first and second messages may be delivered via SMS. More generally, both the first and second messages may be transmitted using a common electronic communication protocol. In another embodiment, the first message may be transmitted using a first electronic communication protocol and the second message may be transmitted using a second electronic communication protocol, the first protocol being different than the second protocol.

[0031] In addition to SMS text messages and e-mails, the first and second messages may be delivered via an instant messaging (IM) application, a webpage, a pop-up window, a blog, an Internet forum, a social network application (such as FACEBOOK®), and a voice over internet protocol (VOIP) application (such as SKYPE®).

[0032] In some embodiments, the process of sending the sequence of messages may be a completely automated process. In other words, a person conducting a simulated phishing attack need only input the recipient(s) of the phishing attack (e.g., recipient(s) name and/or contact information thereof), and possibly provide information associated with the recipient (etc., job title, place of employment, colleague name(s)) so that the phishing attack may be more personalized to the recipient. Afterwards, the messages are automatically sequentially transmitted to the recipient (at preset and/or random times) without further involvement from the person(s) and/or organization conducting the simulated phishing attack. Alternatively, each message may be manually transmitted by the person(s) and/or organization conducting the simulated phishing attack.

[0033] So far, embodiments have been discussed in which the second message is transmitted a certain time duration (whether configurable, random, etc.) after the first message (i.e., a time-based triggering mechanism for the second message). Alternatively, the second message may be transmitted in response to a certain action being performed in association with the first message (i.e., an action-based triggering mechanism for the second message). For instance the second message may be transmitted in response to one or more of the individual replying to the first message, opening the first message, opening an attachment of the first message, and following an embedded link of the first message.

[0034] FIG. 3 depicts components of a system in accordance with one embodiment. As discussed above, a network device 110 is interfaced with a computing device 120 of an individual. In a simulated phishing attack, network device 110 transmits a series of messages to computing device 120, and computing device 120 may send a message (e.g., message communicating whether target action was performed by the individual) to network device 110 in response to one or more messages of the phishing attack.

[0035] Readers should recognize that various embodiments of the present invention may be implemented with the aid of computer-implemented processes or methods (a.k.a. software, programs or routines) that may be rendered in any computer language including, without limitation, C#, C/C++, Fortran, COBOL, PASCAL, assembly language, markup languages (e.g., HTML, SGML, XML, VoXML), and the like, as well as object-oriented environments such as the Common Object Request Broker Architecture (CORBA), JAVA™ and the like. In general, terms such as software, programs, routines, scripts and the like, as used herein, are meant to encompass any series of logical steps performed in a sequence to accomplish a given purpose.

[0036] In view of the above, it should be appreciated that some portions of the detailed description that follows are presented in terms of algorithms and symbolic representations of operations on data within a computer memory. These algorithmic descriptions and representations are the means used by those skilled in the computer science arts to most effectively convey the substance of their work to others skilled in the art. An algorithm is here, and generally, conceived to be a self-consistent sequence of steps leading to a desired result. The steps are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared and otherwise manipulated. It has proven convenient at times, principally for reasons of common usage, to refer to these signals as bits, values, elements, symbols, characters, terms, numbers or the like. It should be borne in mind, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities. Unless specifically stated otherwise, it will be appreciated that throughout the description of the present invention, use of terms such as “processing”, “computing”, “calculating”, “determining”, “displaying” or the like, refer to the action and processes of a computer system, or similar electronic computing device, that manipulates and transforms data represented as physical (electronic) quantities within the computer system's registers and memories into other data similarly represented as physical quantities within the computer system memories or registers or other such information storage, transmission or display devices.

[0037] The present invention can be implemented with an apparatus (referred to above as a network device, computing device, etc.) to perform the operations described herein. This apparatus may be specially constructed for the required purposes, or it may comprise a general-purpose computer, selectively activated or reconfigured by a computer program stored in the computer. Such a computer program may be stored in a computer readable storage medium, such as, but not limited to, any type of disk including floppy disks, optical disks, CD-ROMs, and magnetic-optical disks, read-only memories (ROMs), random access memories (RAMs), EPROMs, EEPROMs, magnetic or optical cards, or any type of non-transitory media suitable for storing electronic instructions, and each coupled to a computer system bus, which in turn may be coupled to a processor.

[0038] The algorithms and processes presented herein are not inherently related to any particular computer or other apparatus. Various general-purpose systems may be used with programs in accordance with the teachings herein, or it may prove convenient to construct more specialized apparatus to perform the required method. For example, any of the methods according to the present invention can be implemented in hard-wired circuitry, by programming a general-purpose processor, or by any combination of hardware and software. One of ordinary skill in the art will immediately appreciate that the invention can be practiced with any computer system configuration, including personal computers, workstations, hand-held devices, multiprocessor systems, microprocessor-based, digital signal processor-based or other programmable consumer electronics, network computers that employ thin client architectures, minicomputers, mainframe computers, and the like. The invention can also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network.

[0039] Thus, methods, network devices and machine-readable media for simulating a phishing attack with sequential messages have been described. It is to be understood that the above description is intended to be illustrative, and not restrictive. Many other embodiments will be apparent to those of skill in the art upon reviewing the above description. The scope of the invention should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

Claims

What is claimed is:

1. A network device, comprising:

a processor;

a storage device connected to the processor; and

a set of instructions on the storage device that, when executed by the processor, cause the processor to:

conduct a simulated phishing attack, the simulated attack comprising:

transmitting a first message to at least one of one or more computing devices of an individual, the first message being disguised as originating from at least one of one or more trustworthy contacts of the individual and notifying the individual that the individual should expect to receive a second message; and

after transmitting the first message, transmitting the second message to the at least one of the one or more computing devices of the individual, the second message also being disguised as originating from at least one of the one or more trustworthy contacts of the individual and attempting to lure the individual into performing, on at least one of the one or more computing device, a target action associated with the second message,

wherein if the individual performs the target action, the simulated phishing attack does not actually compromise any personal information or any one of the one or more computing devices of the individual; and

monitor whether the individual performs the target action on at least one of the one or more computing devices.

2. A non-transitory machine-readable storage medium comprising software instructions that, when executed by a processor, cause the processor to:

conduct a simulated phishing attack, the simulated attack comprising:

after transmitting the first message, transmitting the second message to at least one of the one or more computing devices of the individual, the second message also being disguised as originating from at least one of the one or more trustworthy contacts of the individual and attempting to lure the individual into performing, on at least one of the one or more computing devices, a target action associated with the second message,

monitor whether the individual performs the target action on at least one of the one or more computing devices.

3. A network device, comprising:

a processor;

a storage device connected to the processor; and

a set of instructions on the storage device that, when executed by the processor, cause the processor to:

conduct a simulated phishing attack, the simulated attack comprising:

transmitting a first message to at least one of one or more computing devices of an individual, the first message being disguised as originating from at least one of one or more trustworthy contacts of the individual and attempting to lure the individual into performing, on the at least one of the one or more computing devices, a target action associated with the first message; and

after transmitting the first message, transmitting a second message to at least one of the one or more computing devices of the individual, the second message also being disguised as originating from at least one of the one or more trustworthy contacts of the individual and encouraging the individual to perform the target action on at least one of the one or more computing devices,

monitor whether the individual performs the target action on at least one of the one or more computing devices.

4. A non-transitory machine-readable storage medium comprising software instructions that, when executed by a processor, cause the processor to:

conduct a simulated phishing attack, the simulated attack comprising:

transmitting a first message to at least one of one or more computing devices of an individual, the first message being disguised as originating from at least one of one or more trustworthy contacts of the individual and attempting to lure the individual into performing, on at least one of the one or more computing devices, a target action associated with the first message; and

monitor whether the individual performs the target action on at least one of the one or more computing devices.

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Abstract