CN102761872A - Spam message intercepting method - Google Patents
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- CN102761872A CN102761872A CN2012102707963A CN201210270796A CN102761872A CN 102761872 A CN102761872 A CN 102761872A CN 2012102707963 A CN2012102707963 A CN 2012102707963A CN 201210270796 A CN201210270796 A CN 201210270796A CN 102761872 A CN102761872 A CN 102761872A
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Abstract
The invention discloses a spam message intercepting method which comprises the steps of: extracting a calling number of a short message forwarded by a short message center and an embedded digital number in a content of the short message, matching the extracted embedded digital number with a number keyword stored in a spam message monitoring platform, matching the extracted calling number with a blacklist stored in the spam message monitoring platform, if one matching fails, judging that the short message forwarded from the short message center is the spam message, and intercepting the spam message. According to the invention, the recognition and the extraction of a generalized digital number are supported, a masking spam message can be effectively recognized, the total flow and the calling and called dispersion combined, the accuracy rate is high, misjudgment can be effectively prevented, user complaint can be effectively reduced, the whole intercepting process does not need to be participated manually, the blacklist and the number keyword are automatically updated, and manual cost is saved.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of rubbish short message interception method.
Background technology
Domestic common refuse messages audit mode generally is that this mode is mainly analyzed from following two aspects with the target of phone number as audit and operation:
1) sending content analysis---the content of short message that sends to calling number carries out the keyword coupling; If the short message content that sends has triggered some responsive vocabulary; And this sensitivity vocabulary that sends within a certain period of time reaches some, then calling number is handled.
2) send that behavioural analysis---with the calling number is that dimension is sent behavioural analysis, comprise total flow statistics, certain transmission characteristic etc.In the unit interval, the amount that the total flow that same calling number is sent perhaps meets a certain characteristic reaches certain quantity, then this calling number is handled.
Present refuse messages sender in order to hide these monitoring strategies, has summed up experience, and send mode has produced a lot of variations.Such as: a plurality of calling number low speed send, a plurality of calling number is sent identical content simultaneously, every content is only sent several, same calling number and do not stopped nearly word of unisonance/shape of conversion content of short message, keyword or the like.The defective that traditional refuse messages analytical method exists comes out gradually: 1) send in the content analysis mode; Because keyword lacks effective discovery means; Do not upgrade for a long time; Can not adapt to the variation (comprise traditional font, shape are near, unisonance etc.) of refuse messages keyword abnormity, the keyword frequency lacks the trace analysis with actual transmission behavior based on static relatively curing data.And 2) send in the behavioural analysis mode, pure traffic policy if limit sternly, misses and blocks the rate height; If limit widely, tackle less than refuse messages at all; Single behavioural characteristic is more and more inoperative to present refuse messages, and the transmission of a lot of refuse messages is irregular following fully.
Summary of the invention
The purpose of this invention is to provide a kind of rubbish short message interception method; Solve conventional garbage SMS interception mode and can not adapt to conventional garbage note transmission characteristic; And the curve that causes a large amount of leakage interceptions or mistake to block proposes the rubbish short message interception method based on embedded number, effectively the catching rubbish note.
In order to realize the foregoing invention purpose, the invention provides a kind of rubbish short message interception method, comprising:
Extraction is transmitted the calling number of the note of coming and the embedded digital number the short message content from sms center, and the embedded digital number of said extraction is for satisfying the embedded digital number of setting character length;
The embedded digital number of said extraction and the number keyword of the storage in the monitoring spam platform are mated; Simultaneously the calling number of said extraction and the blacklist of the storage in the monitoring spam platform are mated; If the match is successful for one of them; Then judging said note of coming from the sms center forwarding is refuse messages, and with its interception.
Wherein, said method also comprises: in said monitoring spam platform, add number keyword and blacklist automatically.
Wherein, In said monitoring spam platform, add number keyword and blacklist automatically; Specifically comprise: analyze transmitting the embedded digital number that extracts the next short message content from sms center in the certain hour, judge whether certain embedded number is number embedded in the refuse messages; If to judge certain embedded number is number embedded in the refuse messages, then should be added to the number keyword by embedded digital number, and the calling number that will send these number keywords is added to blacklist.
Wherein, in said monitoring spam platform, add blacklist automatically, also comprise: extract from sms center and transmit the calling number that comprises embedded digital number note the next short message content; Add up the quantity that comprises embedded digital number note that certain calling number sends within a certain period of time and the kind of embedded digital number; If the quantity that comprises embedded digital number note that certain calling number is sent within a certain period of time and the kind of embedded digital number all reach setting threshold separately, then this calling number is added to blacklist.
Preferably; Said the embedded digital number that extracts in the certain hour is analyzed; Judge whether certain embedded number is number step embedded in the refuse messages; Comprise: add up the number of times that certain embedded digital number occurs within a certain period of time, if the number of times that certain embedded digital number occurs within a certain period of time reaches setting threshold, then judging this embedded number is number embedded in the refuse messages.
Preferably; Said the embedded digital number that extracts in the certain hour is analyzed; Judge whether certain embedded number is number step embedded in the refuse messages; Comprise: add up the number of times that certain embedded digital number occurs within a certain period of time, if the number of times that occurs within a certain period of time of certain embedded digital number reaches setting threshold, the calling number and the called number that then transmission are comprised this embedded digital number note carry out the dispersion analysis; If the calling number that said transmission comprises this embedded digital number note is a plurality of numbers, and the called number dispersion is greater than setting threshold, and then judging this embedded number is number embedded in the refuse messages.
Preferably, from short message content, extract embedded digital number, comprising:
Reject the separator in the short message content;
According to presetting the digital mapping table of distortion short message content is discerned again, stored each corresponding relation digital and its similar character in the said distortion numeral mapping table that presets;
Extract the embedded digital number of the satisfied setting character length in the short message content after discerning again.
Preferably, when in said monitoring spam platform, automatically adding number keyword or blacklist data, for the number keyword of each new interpolation or the blacklist number of each new interpolation are provided with a term of validity, the term of validity reaches, and discharges immediately.
Compared with prior art, the present invention has following beneficial effect:
1) before embedded number extracts, at first short message content is discerned again based on presetting the digital mapping table of distortion, make the present invention support the identification and the extraction of broad sense digital number;
2) embedded number combines the analysis of calling and called dispersion, and accuracy is high, can effectively prevent erroneous judgement;
3) support based on calling number to be that dimension is analyzed, combine digital number total flow and digital number kind simultaneously, can judge effectively whether a certain calling number is sending refuse messages;
4) the embedded digital number that satisfies certain condition that the present invention will judge is added to the number keyword, and the calling number that will send refuse messages is added to blacklist, can realize monitoring in batches and interception.
5) the present invention also is provided with a term of validity to the number keyword of each new interpolation or the blacklist number of each new interpolation, and the term of validity reaches, and discharges immediately, can effectively discharge rubbish short message interception system keyword memory space.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings:
Fig. 1 resets the data structure form of statistics for digital number in the embodiment of the invention;
Fig. 2 is a kind of schematic flow sheet of rubbish short message interception method in the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Present refuse messages sender in order to hide existing interception message monitoring strategy (like keyword interception, the interception of calling number flow etc.), has summed up experience, and send mode has produced a lot of variations.Such as: a plurality of calling number low speed send, a plurality of calling number is sent identical content simultaneously, every content is only sent several, same calling number and do not stopped nearly word of unisonance/shape of conversion content of short message, keyword or the like; Traditional refuse messages analytical method can not be suitable for the mode of these variations; Must send characteristic according to the conventional garbage note; Go to seek more effective refuse messages analytical method, go back the limpid ground of short message network a slice.
Refuse messages, customer complaint data through the inventor does not intercept the part office point are carried out Collection and analysis, draw as drawing a conclusion:
1) in the refuse messages of not intercepting, the customer complaint data, commercial advertisement class note has accounted for 60% ratio, and the rogue note has accounted for 30%, has only about 10% to be harassing and wrecking type, politics class and other notes;
2) in these commercial advertisements, swindle note, all contain digital number in the short message content more than 85%, such as: telephone number, bank's card number etc.
This just shows, as long as these intercepting rubbish short messages that comprise digital number are got off, just can be reduced by at least 70% complaint amount, makes the refuse messages regulation effect be significantly improved.In addition, comprise the note of digital number for these, their content tends in different senders, slight change is arranged; Content is not exclusively the same, still, reaches the purpose of paying a return visit and swindling based on needs; No matter how how content becomes, and the digital number that wherein comprises can change scarcely.So, as long as caught the digital number in these contents, just can these intercepting rubbish short messages be got off.
The embodiment of the invention has proposed a kind of rubbish short message interception method; Embedded number in conjunction with in the short message content carries out intercepting rubbish short message; Be specially: extract from sms center and transmit the calling number of the note of coming and the embedded digital number the short message content, the embedded digital number of said extraction is for satisfying the embedded digital number of setting character length; The embedded digital number of said extraction and the number keyword of the storage in the monitoring spam platform are mated; Simultaneously the calling number of said extraction and the blacklist of the storage in the monitoring spam platform are mated; If the match is successful (need to prove for one of them; The match is successful comprises two all the match is successful for one of them); Then judging said note of coming from the sms center forwarding is refuse messages, and with its interception.Number keyword of storing in the said monitoring spam platform and blacklist add according to embedded number analysis result in embodiments of the present invention automatically, and the back will describe in detail.
Realize the embodiment of the invention, at first will from short message content, extract embedded number.In the refuse messages that sends now, in order to hide the extraction of normal digital number, can digital number be carried out deformation process usually, comprising: adopt that whole-angle figure, the similar English alphabet of font are obscured etc.Numeral after these distortion, common extracting mode can not identify, but after the user receives note, on literal and font, can find out the actual value that this is digital very clearly.
Therefore; The embodiment of the invention has adopted a kind of broad sense digital extraction mode; The notion that is about to the numeric class message monitoring enlarges; Similar character or letter, whole-angle figure added monitor, and combine the automatic removing function of keyword separator, can extract the continuous numbers such as telephone number, phone number, bank's card number of any digit.Embodiment of the invention broad sense digital extraction mode comprises the steps: specifically
A: reject the separator in the short message content, said separator refer to space, " ", " # ", " ... ", spcial character such as " * ", " & ", "-";
B: according to presetting the digital mapping table of distortion short message content is discerned again, stored each corresponding relation digital and its similar character in the said distortion numeral mapping table that presets, be out of shape digital mapping table form and can see table one;
Table one:
| | Distortion numeral | 1 | Distortion numeral 2 | Distortion numeral 3 | Be out of shape digital N |
| 0 | O | o | … | … | |
| 1 | I | i | ! | … | |
| 2 | Z | … | … | … | |
| … | … | … | … | … |
According to table one, such as: letter ' o ', ' O ' corresponding numeral ' 0 '; The corresponding numeral ' 1 ' of character ' i ', that just can be identified as " 13800138001 " with " l38ooi38OO1 " in the short message content.
C: the embedded digital number that extracts the satisfied setting character length in the short message content after discerning again.In step c, because the numerical character that comprises has all lengths in the short message content, what have has only a character; What have has countless characters; In general, refuse messages reaches the purpose of paying a return visit and swindling based on needs, and the digital number that wherein comprises generally comprises telephone number; And the length of telephone number is exactly nothing but the fixed line phone number of 5 character hot line numbers, 6 or 8 characters or the phone number of 11 characters; Therefore when the embedded digital number in the short message content is extracted, need the one or more character lengths of configuration, have only embedded digital number to satisfy this preseting length value; Just it is extracted, to prevent to extract too much useless digital number.Wherein the order of step a and step b can exchange.
At first introduce in the embodiment of the invention extracting mode of embedded digital number in the short message content above, introduced the embodiment of the invention is added number keyword and blacklist automatically in the monitoring spam platform concrete grammar below.
In said monitoring spam platform, add blacklist automatically, comprise digital number analysis, be specially: extract from sms center and transmit the calling number that comprises embedded digital number note the next short message content with the calling number dimension; Add up the quantity that comprises embedded digital number note that certain calling number sends within a certain period of time and the kind of embedded digital number; If the quantity that comprises embedded digital number note that certain calling number is sent within a certain period of time and the kind of embedded digital number all reach setting threshold separately, then this calling number is added to blacklist.Because send calling number for refuse messages, it is not only to send a kind of refuse messages, can send the refuse messages of plurality of kinds of contents within a certain period of time, will comprise multiple digital number string; And, in a period of time, generally only can comprise a kind of numeric string in its short message content for normal users.Such as; If it is 100 that the amount threshold that comprises embedded digital number note that certain calling number sent in 1 hour is set, and the kind threshold value of embedded digital number is 5 monitoring strategies, and then this calling number was sent in 1 hour and contained total 100 of digital message; And 100; Contain 5 kinds of numeric strings, think that promptly this calling number has the suspicion of sending refuse messages, it is added to blacklist after; Can stop these calling numbers to send identical refuse messages or Other Waste note once more, realize permanently effective interception.The traditional monitor mode with single digital number quantity of this scheme difference, the digital number total amount, the different digital number kind that combine this calling number to send are simultaneously sent several two dimensions and are analyzed, and reduce mistake and grab.
In said monitoring spam platform, add number keyword and blacklist mode automatically; Also comprise: analyze transmitting the embedded digital number that extracts the next short message content from sms center in the certain hour, judge whether certain embedded number is number embedded in the refuse messages; If judge certain embedded number is number embedded in the refuse messages; Then should be added to the number keyword by embedded digital number; And the calling number that will send these number keywords is added to blacklist; After being added to blacklist, can stop these calling numbers to send identical refuse messages or Other Waste note once more, realize permanently effective interception.
At first, before embedded digital number is analyzed, as dimension, carry out digital number according to identical embedded digital number and reset statistics, comprise calling number, called number etc. with the embedded digital number that extracts.Such as resetting statistics according to the described data structure of Fig. 1; Can find out among Fig. 1; 131000001 have sent the note that comprises embedded digital number 84898532 as calling number to 135190001, in like manner 13450001 have sent the note that comprises embedded digital number 84898532 as calling number to 158190001.
Aforementionedly judge whether certain embedded number is that number embedded in the refuse messages also can be divided into dual mode; A kind of mode is: add up the number of times that certain embedded digital number occurs within a certain period of time (this step can by adding up in Fig. 1 structure); If the number of times that certain embedded digital number occurs within a certain period of time reaches setting threshold, then judging this embedded number is number embedded in the refuse messages.Certain this mode possibility judgment mode is too single, can cause certain erroneous judgement unavoidably, as: a user sends out the number of changing notifying messages, and an one of which hour flow also may reach our preset threshold, but this note is not to be refuse messages.For real refuse messages, we will catch an one of which characteristic to be: 1) a plurality of calling numbers can be sent simultaneously; The called number dispersion of 2) sending is high, is 100% dispersion basically; So, in the present invention program, on the basis of threshold value, carry out analysis-by-synthesis in conjunction with caller dispersion, called dispersion, just can judge whether refuse messages of a digital number accurately.Therefore; Preferably; Can judge whether certain embedded number is number embedded in the refuse messages according to following mode: add up the number of times that certain embedded digital number occurs within a certain period of time (this step can by adding up in Fig. 1 structure); If the number of times that occurs within a certain period of time of certain embedded digital number reaches setting threshold, the calling number and the called number that then transmission are comprised this embedded digital number note carry out the dispersion analysis; If the calling number that said transmission comprises this embedded digital number note is a plurality of numbers, and the called number dispersion is greater than setting threshold, and then judging this embedded number is number embedded in the refuse messages.
After to judge certain embedded number be number embedded in the refuse messages; The embodiment of the invention just this embedded digital number is added to the number keyword automatically; After being added to the number keyword, just can be the monitoring strategies of this number keyword configuration based on calling number.As long as follow-up have any calling number to send the short message content that comprises this digital number, can be grabbed out immediately, be added to blacklist, realize monitoring in batches and interception.
By these digital numbers of being grabbed out, do not possess permanently, possibly only in a period of time, come into force, if untimely cleaning can take the keyword capacity of monitoring spam system, make new effective keyword to add.Preferably; In the embodiment of the invention scheme, keyword and the automatic maintenance function of the blacklist term of validity have been increased, for number keyword or the blacklist that adds automatically is provided with a configurable term of validity; In case the term of validity of these number keywords or blacklist calling number reaches, discharge immediately.
For vivider explanation embodiment of the invention method, embodiment of the invention method is done further combing below in conjunction with Fig. 2.
Be appreciated that the monitoring spam platform that the present invention implements in the rubbish short message interception method comprises refuse messages analysis module and digital number analysis module; Wherein the refuse messages analysis module is mainly used in and judges whether short message is refuse messages; And the digital number analysis module is used for which embedded number of analysis and judgement is the embedded number of refuse messages; And the embedded number in the refuse messages of judging joined the number blacklist, judge that simultaneously which calling number sending refuse messages, adds blacklist with these calling numbers; Judgment mode is existing in front to be introduced in detail, does not give unnecessary details here.
Can be known by Fig. 2, after sms center is received a short message, can transmit the short message authentication request to the refuse messages analysis module, whether this short message of request refuse messages analysis module analysis is refuse messages.The refuse messages analysis module extracts embedded digital number from the content of short message that sms center is transmitted, mate according to monitoring strategies, draws this short message and whether is the analysis result of refuse messages and analysis result is returned sms center.
Simultaneously; The refuse messages analysis module can be forwarded to the digital number analysis module with the embedded digital number that shifts to an earlier date and carry out the Parallel Digital number analysis; Wherein main analytical method comprises: 1) be the digital number analysis of dimension with the calling number, the calling number that will be divided into the transmission refuse messages that joins blacklist; 2) after digital number is reset, carry out the analysis of calling and called dispersion, the embedded digital number in the refuse messages of monitoring out is added to the number keyword, and the calling number that will send these number keywords is added to blacklist.Wherein, Monitoring strategies in the refuse messages analysis module is exactly according to blacklist and number keyword the embedded number or the calling number of coming out in advance to be compared, and judges whether note is refuse messages, and concrete deterministic process and various analysis mode all have detailed introduction in front; Do not give unnecessary details here; Fig. 2 is merely a concise and to the point combing the front being described flow process, makes flow process of the present invention more clear, each step among Fig. 2 and detachable combination.
Rubbish short message interception method of the present invention mainly combines the embedded digital number of note in embedded that refuse messages is tackled, and wherein the identification and the extraction of broad sense digital number supported in the extraction of embedded digital number, can effectively identify the refuse messages of camouflage.Embedded in addition number combines the analysis of calling and called dispersion, and accuracy is high, can effectively prevent erroneous judgement; It is that dimension is analyzed that the present invention also supports based on calling number, combines digital number total flow and digital number kind simultaneously, can judge effectively whether a certain calling number is sending refuse messages.The embedded digital number that satisfies certain condition that the present invention will judge is added to the number keyword; And the calling number that will send refuse messages is added to blacklist; Can realize monitoring in batches and interception, can effectively reduce customer complaint, and whole intercept process does not need artificial the participation; Blacklist and number keyword upgrade automatically, practice thrift cost of labor.The present invention also is provided with a term of validity to the number keyword of each new interpolation or the blacklist number of each new interpolation, and the term of validity reaches, and discharges immediately, can effectively discharge rubbish short message interception system keyword memory space.
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (8)
1. a rubbish short message interception method is characterized in that, comprising:
Extraction is transmitted the calling number of the note of coming and the embedded digital number the short message content from sms center, and the embedded digital number of said extraction is for satisfying the embedded digital number of setting character length;
The embedded digital number of said extraction and the number keyword of the storage in the monitoring spam platform are mated; Simultaneously the calling number of said extraction and the blacklist of the storage in the monitoring spam platform are mated; If the match is successful for one of them; Then judging said note of coming from the sms center forwarding is refuse messages, and with its interception.
2. the method for claim 1 is characterized in that, said method also comprises: in said monitoring spam platform, add number keyword and blacklist automatically.
3. method as claimed in claim 2 is characterized in that, in said monitoring spam platform, adds number keyword and blacklist automatically, specifically comprises:
Analyze transmitting the embedded digital number that extracts the next short message content from sms center in the certain hour, judge whether certain embedded number is number embedded in the refuse messages;
If to judge certain embedded number is number embedded in the refuse messages, then should be added to the number keyword by embedded digital number, and the calling number that will send these number keywords is added to blacklist.
4. method as claimed in claim 3 is characterized in that, in said monitoring spam platform, adds blacklist automatically, also comprises:
Extraction is transmitted the calling number that comprises embedded digital number note the next short message content from sms center;
Add up the quantity that comprises embedded digital number note that certain calling number sends within a certain period of time and the kind of embedded digital number;
If the quantity that comprises embedded digital number note that certain calling number is sent within a certain period of time and the kind of embedded digital number all reach setting threshold separately, then this calling number is added to blacklist.
5. method as claimed in claim 3 is characterized in that, said the embedded digital number that extracts in the certain hour is analyzed, and judges that whether certain embedded number is number step embedded in the refuse messages, comprising:
Add up the number of times that certain embedded digital number occurs within a certain period of time, if the number of times that certain embedded digital number occurs within a certain period of time reaches setting threshold, then judging this embedded number is number embedded in the refuse messages.
6. method as claimed in claim 3 is characterized in that, said the embedded digital number that extracts in the certain hour is analyzed, and judges that whether certain embedded number is number step embedded in the refuse messages, comprising:
Add up the number of times that certain embedded digital number occurs within a certain period of time; If the number of times that occurs within a certain period of time of certain embedded digital number reaches setting threshold, the calling number and the called number that then transmission are comprised this embedded digital number note carry out the dispersion analysis;
If the calling number that said transmission comprises this embedded digital number note is a plurality of numbers, and the called number dispersion is greater than setting threshold, and then judging this embedded number is number embedded in the refuse messages.
7. like each described method in the claim 1 to 6, it is characterized in that, from short message content, extract embedded digital number, comprising:
Reject the separator in the short message content;
According to presetting the digital mapping table of distortion short message content is discerned again, stored each corresponding relation digital and its similar character in the said distortion numeral mapping table that presets;
Extract the embedded digital number of the satisfied setting character length in the short message content after discerning again.
8. like each described method in the claim 2 to 6; It is characterized in that; When in said monitoring spam platform, adding number keyword or blacklist data automatically; For the number keyword of each new interpolation or the blacklist number of each new interpolation are provided with a term of validity, the term of validity reaches, and discharges immediately.
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