CN110113475A - Android system mobile phone screen lock crack method based on Lian Fa section MTK processor communication agreement - Google Patents
Android system mobile phone screen lock crack method based on Lian Fa section MTK processor communication agreement Download PDFInfo
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- CN110113475A CN110113475A CN201910364145.2A CN201910364145A CN110113475A CN 110113475 A CN110113475 A CN 110113475A CN 201910364145 A CN201910364145 A CN 201910364145A CN 110113475 A CN110113475 A CN 110113475A
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- mobile phone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/247—Telephone sets including user guidance or feature selection means facilitating their use
- H04M1/2473—Telephone terminals interfacing a personal computer, e.g. using an API (Application Programming Interface)
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/667—Preventing unauthorised calls from a telephone set
- H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Security & Cryptography (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of Android system mobile phone screen lock crack methods based on Lian Fa section MTK processor communication agreement, include the following steps:-obtain the cellphone information of the processor model including at least current phone, software I D and hardware ID, according to the information, the corresponding guidance file of calling mobile phone；- according to guidance file, current phone partition table is obtained, is searched in mobile phone partition table, positioning system subregion；- traversal cell phone system system subregion obtains the data field of screen lock file and the file storage；- modify to screen lock file and generate corresponding new data field, data field is written back to cell phone system subregion, restarts mobile phone, screen lock is completed and cracks.Modification and write-back by the memory block to CPU specific file, it can be improved the accuracy of unlock data field, it can realize that screen lock cracks function seamlessly safely, after being cracked to screen lock, it can choose reduction screen lock, mobile phone after recovery can't damage data in mobile phone as former mobile phone.
Description
Technical field
The present invention relates to a kind of Android system mobile phone screen lock crack methods, more particularly to one kind is based at Lian Fa section MTK
Manage the Android system mobile phone screen lock crack method of device communication protocol.It is related to Patent classificating number G06 calculating；It calculates；Count G06F
(it is to enter G06D with computer that is hydraulic or pneumatically completing that part calculates to electric Digital data processing, and what optics was completed enters G06E；It is based on
The computer system of specific calculation model enters G06N) G06F21/00 prevents the protection computer of unauthorized behavior, its component, journey
The safety device of sequence or data.
Background technique
2.0 epoch of Android, the method that Android mobile phone commonly cracks screen lock are the adb by mobile phone, directly removing hand
The screen lock file of machine removes mobile phone screen lock to realize；2.0~4.0 epoch of Android are allowed by finding Android system loophole
Mobile phone obtains Root authority, the code key file of mobile phone is then obtained by adb order, then by Brute Force, calculate mobile phone
Screen lock cipher, thus realize crack screen lock；4.0~6.0 epoch of Android, by brushing the Recovery file into customization,
It allows mobile phone to enter certain moduli formula, to obtain special Root authority, then obtains code key file and cracked, it is final to realize
Crack screen lock；6.0~7.0 epoch of Android, by customizing the Root authority of the Boot file acquisition mobile phone with official's signature,
Then by deleting screen lock file, realization cracks mobile phone screen lock；But with the continuous evolution of Android system, Android 8.0
The mobile phone of system at present there is no what it is good crack means, the crack method of each version of Android is when Android 8.0 before
All failures.
Summary of the invention
The present invention is in view of the above problems, a kind of Android system hand based on Lian Fa section MTK processor communication agreement proposed
Machine screen lock crack method, includes the following steps:
- acquisition includes at least the cellphone information of the processor model of current phone, software I D and hardware ID, according to the letter
Breath, the corresponding guidance file of calling mobile phone；
- according to guidance file, current phone partition table is obtained, is searched in mobile phone partition table, positioning system subregion；
- traversal cell phone system system subregion obtains the data field of screen lock file and the file storage；
- modify to screen lock file and generate corresponding new data field, data field is written back to cell phone system point
Area restarts mobile phone, completes screen lock and cracks.
As preferred embodiment, the traversal mobile phone system subregion obtains current phone partition table, in mobile phone point
It is searched in area's table, positioning system subregion specifically comprises the following steps:
- communicated with current phone CPU, obtain mobile phone partition information, the address of system subregion and length；
- traversal system subregion, determines position of the priv-app/SystemUI/SystemUI.apk in system subregion
It sets, i.e. place data field.
Further, it modifies to screen lock file and generates new data field, data are written back to cell phone system
Process is as follows:
Whole numbers of data field locating for priv-app/SystemUI/SystemUI.apk in-acquisition system subregion
According to the flag bit that gauge outfit part indicates that this document whether there is in the Data Area data is changed by 0x0C in outer computer
For 0xFF, the rewriting of data field is completed；
- data field of rewriting brush turned round and stretched out the hand into machine, restart mobile phone, completes screen lock and crack.
As preferred embodiment, Android system mobile phone information to be processed is obtained by USB data line:
- mobile phone shutdown pins down key in volume, and mobile phone is connected outer computer with USB data line, enters mobile phone
MTK communication pattern is ready for communicating；
- USB insertion message is captured in outer computer, the port com of insertion computer is obtained, data can be carried out by finding
The port com of read-write, the port are the MTK communication port of Android mobile phone；
- preset numerical value is pressed, initiating port allows port to carry out data interaction；
- send scheduled MTK cpu instruction and communicated with Android mobile phone CPU, acquisition processor model, software I D and
The cellphone information of hardware ID.
Further, before USB insertion message is captured in outer computer, the knot of device broadcasts is registered into forms
Structure body variable waits the information of USB insertion to be captured within the set time, and when USB device insertion, capture obtains equipment insertion
Event obtains whole relevant device information collection at outer computer end, sets in whole correlations according to the GUID of this event information
Standby information is concentrated, and is enumerated the equipment interface for meeting the GUID, according to the essential information of equipment interface, is obtained the detailed of equipment interface
Information.
Further, the specified registry key that current Android mobile phone equipment is concentrated is opened, the phase of the registry key is obtained
Information is closed, the sub-key below the registry key is enumerated, the strong information of son is obtained, sub-key information is opened by traversal, is found available
Port numbers.
Further, port is opened in an asynchronous manner, port is allowed to be written and read, and initializes the logical of communication port
Believe parameter, the baud rate that communication is arranged is 115200, and the size of data that setting sends and receives buffer area is 8192, setting communication
Time-out time, empty the cache area, is ready for the transmitting-receiving of data.
As preferred embodiment, the guidance file is the guidance file encrypted by aes algorithm.
Further, the data area file that file declustering will be guided to communicate at two respectively guides 1 and guidance 2, according to
It is secondary to be brushed into Android mobile phone to be processed into guidance 1 and guidance 2, communication verification, after verifying successfully, opponent are carried out with mobile phone CPU
Machine CPU is written and read.
By using above-mentioned technical proposal, the Android system disclosed by the invention based on Lian Fa section MTK processor communication agreement
Mobile phone screen of uniting locks modification and write-back of the crack method by the memory block to CPU specific file, can be improved unlock data field
Accuracy, can realize that screen lock cracks function seamlessly safely, after being cracked to screen lock, can choose reduction screen
Curtain lock, the mobile phone after recovery can't damage data in mobile phone as former mobile phone.
Detailed description of the invention
For the clearer technical solution for illustrating the embodiment of the present invention or the prior art, to embodiment or will show below
There is attached drawing needed in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the present invention without creative efforts, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is algorithm flow chart of the invention
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, below with reference to the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention carries out clear and complete description:
As shown in Figure 1
A kind of Android system mobile phone screen lock crack method based on Lian Fa section MTK processor communication agreement mainly includes
Following steps:
Mobile phone shutdown pins down key in volume, and mobile phone is connected computer with USB data line, and mobile phone is made to enter MTK communication mould
Formula is ready for communicating.
The structural body variable that device broadcasts are registered into forms waited the information of USB insertion to be captured within 90 second time,
When USB device insertion, capture obtains equipment insertion event, according to the GUID of this event information, obtains the whole of computer end
Relevant device information collection is concentrated in whole relevant device information, the equipment interface for meeting the GUID is enumerated, according to equipment interface
Essential information obtains the details of equipment interface.Equipment interface information includes: the path of equipment interface, equipment interface
GUID (globally unique identifier), the event information of equipment.
It captures USB and is inserted into message, obtain the port com of insertion computer, find the port com that can carry out reading and writing data,
The port is the MTK communication port of Android mobile phone；By preset numerical value, initiating port allows port to carry out data friendship
Mutually；It sends scheduled MTK cpu instruction to be communicated with Android mobile phone CPU, obtains the bases such as model, software id, the hardware id of CPU
This information；According to the essential information of mobile phone, the authentication document of mobile phone is downloaded；According to the essential information of CPU, the guidance of mobile phone is downloaded
File.Scheduled MTK instruction is sent, carries out communication verification with chip for cell phone；
After success downloading guides file, the com mouth for switching communication is high-speed port；The port high speed com is initialized, is prepared
Carry out high-speed data read-write operation；The partition table for obtaining mobile phone searches the relevant information of system subregion, positioning in partition table
The district location of system calculates the size of subregion；System subregion is traversed, screen lock associated documents are searched；Finding screen
After locking file, the corresponding data area comprising screen lock file is read, is then customized by the modification to screen lock file, is generated new
Screen lock file data area, 1. are communicated with CPU, traverse system subregion, search priv-app/SystemUI/
The total data in corresponding data area is read in position of the SystemUI.apk in system subregion, particularly includes gauge outfit part
Gauge outfit part is indicated that the flag bit that this document whether there is is changed to 0xFF by 0x0C by data, this file is deleted in expression, by this
Machine of turning round and stretching out the hand is brushed in block data field, and after restarting mobile phone, cell phone system can not find SystemUI.apk, be unable to complete normal interface
Start timing, it can not normal load screen lock.So mobile phone is displayed without screen lock after booting, Android mobile phone can be directly accessed
System, to realize the operation for releasing Android mobile phone screen lock；The screen lock file data area of customization is brushed into corresponding data
Area restarts mobile phone, realizes cracking for screen lock.
The specified registry key that current device is concentrated is opened, the relevant information of the registry key is obtained, enumerates the registration table
Sub-key below key obtains the strong information of son, opens sub-key information by traversal, find available port numbers.
Port is opened in an asynchronous manner, allows port to be written and read, initializes the messaging parameter of communication port, is arranged
The baud rate of communication is 115200, and the size of data that setting sends and receives buffer area is 8192, the communication timeout time is arranged, clearly
Empty buffer area is ready for the transmitting-receiving of data.
Further, in order to guarantee data safety during cracking, drawing by encryption is decrypted using aes algorithm
Lead file
The AES used in the present invention is the password an of iteration, symmetric key grouping, and 128,192 and can be used in it
256 keys, and with 128 (16 byte) block encryptions and ciphertext data.It is different using key pair from public key cryptography,
Symmetric key cipher uses identical key encrypting and decrypting data.By block cipher return encryption data digit with it is defeated
It is identical to enter data.Iterative cryptographic uses a loop structure, repeats displacement (permutations) in the cycle and replaces
(substitutions) input data.
A part of data as follows for guidance file
0xFF 0xFF 0xFF 0xEA 0x7E 0x09 0x00 0xFA
0x00 0x00 0x0F 0xE1 0xc0 0x10 0xA0 0xE3
Using AES_set_encrypt_key function setup key, 128 keys are generated by self-defining character；
The encryption that fixed character write-in will generate is guided into file the beginning part, to identify that this file correctly encrypts
Guide file；
Cooperate key using AES_encrypt function, guidance document text is encrypted, encrypted character is written
In file.
It is as follows a part of data of encrypted guidance file
0xBE 0x81 0x07 0x00 0xE5 0x5E 0x75 0xFB
0x28 0x96 0xE2 0x08 0xB4 0X87 0X44 0X67
Further, the data area file that file declustering will be guided to communicate at two respectively guides 1 and guidance 2, according to
It is secondary to brush into guidance 1 and guidance 2, communication verification is carried out with mobile phone CPU, after verifying successfully, CPU can be just written and read.
It is the block of information that a mobile phone guides, flag bit 0xDCDC, each block of information phase from the guidance position file 0x6c
The data for being 2 to offset 0x02 length are cpu model, search data block identical with the cpu information read before from mobile phone and obtain
Take guidance information.The data that the opposite offset 0x28 position length of block of information is 4 indicate that first guidance file is located in this file
Absolute address, the data for being 4 with respect to offset 0x2c position length in block indicate first guidance file size, relatively inclined in block
Moving the data that 0x30 length is 4 indicates that the offset address of mobile phone will be written in first guidance file；Opposite offset 0x3c in block
Setting the data that length is 4 indicates that second guidance is located at the absolute address in this file, opposite offset 0x40 position length in block
Second guidance file size is indicated for 4 data, and the data for being 4 with respect to offset 0x44 length in block indicate second guidance text
The offset address of mobile phone will be written in part；The data of first, the second guidance file got after fractionation are exactly former guidance text
The binary system initial data of part.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of Android system mobile phone screen lock crack method based on Lian Fa section MTK processor communication agreement, it is characterised in that
Include the following steps:
- acquisition includes at least the cellphone information of the processor model of current phone, software I D and hardware ID, according to the information, adjusts
With the corresponding guidance file of mobile phone；
- according to guidance file, current phone partition table is obtained, is searched in mobile phone partition table, positioning system subregion, calculates and divides
Area's size；
- traversal cell phone system system subregion obtains the data field of screen lock file and the file storage；
- modify to screen lock file and generate corresponding new data field, data field is written back to cell phone system subregion, weight
New starting mobile phone, completes screen lock and cracks.
2. the Android system mobile phone screen lock according to claim 1 based on Lian Fa section MTK processor communication agreement cracks
Method, it is further characterized in that the traversal mobile phone system subregion, obtains current phone partition table, look into mobile phone partition table
It looks for, position system partitioning specifically comprises the following steps:
- communicated with current phone CPU, obtain mobile phone partition information, the address of system subregion and length；
- traversal system subregion, determines position of the priv-app/SystemUI/SystemUI.apk in system subregion,
Data field where i.e..
3. the Android system mobile phone screen lock according to claim 2 based on Lian Fa section MTK processor communication agreement cracks
Method, it is further characterized in that: it modifies to screen lock file and generates new data field, data are written back to cell phone system mistake
Journey is as follows:
The data of data field locating for priv-app/SystemUI/SystemUI.apk in-acquisition system subregion, in outside
Gauge outfit part in Data Area data is indicated that the flag bit that this document whether there is is changed to 0xFF by 0x0C in computer, completes number
According to the rewriting in area；
- data field of rewriting brush turned round and stretched out the hand into machine, restart mobile phone, completes screen lock and crack.
4. the Android system mobile phone screen lock according to claim 1 based on Lian Fa section MTK processor communication agreement cracks
Method, it is further characterized in that: Android system mobile phone information to be processed is obtained by USB data line:
- mobile phone shutdown pins down key in volume, and mobile phone is connected outer computer with USB data line, so that mobile phone is entered MTK logical
Letter mode is ready for communicating；
- USB insertion message is captured in outer computer, the port com of insertion computer is obtained, reading and writing data can be carried out by finding
The port com, which is the MTK communication port of Android mobile phone；
- preset numerical value is pressed, initiating port allows port to carry out data interaction；
The scheduled MTK cpu instruction of-transmission is communicated with Android mobile phone CPU, obtains processor model, software I D and hardware
The cellphone information of ID.
5. the Android system mobile phone screen lock according to claim 4 based on Lian Fa section MTK processor communication agreement cracks
Method, it is further characterized in that: before capturing USB insertion message in outer computer, the knot of device broadcasts is registered into forms
Structure body variable waits the information of USB insertion to be captured within the set time, and when USB device insertion, capture obtains equipment insertion
Event obtains whole relevant device information collection at outer computer end, sets in whole correlations according to the GUID of this event information
Standby information is concentrated, and is enumerated the equipment interface for meeting the GUID, according to the essential information of equipment interface, is obtained the detailed of equipment interface
Information.
6. the Android system mobile phone screen lock according to claim 4 based on Lian Fa section MTK processor communication agreement cracks
Method, it is further characterized in that: the specified registry key that current Android mobile phone equipment is concentrated is opened, the correlation of the registry key is obtained
Information enumerates the sub-key below the registry key, obtains the strong information of son, opens sub-key information by traversal, find available end
Slogan.
7. the Android system mobile phone screen lock according to claim 6 based on Lian Fa section MTK processor communication agreement cracks
Method, it is further characterized in that:
Port is opened in an asynchronous manner, port is allowed to be written and read, and initializes the messaging parameter of communication port, setting communication
Baud rate be 115200, setting send and receive buffer area size of data be 8192, be arranged the communication timeout time, empty slow
Area is deposited, the transmitting-receiving of data is ready for.
8. the Android system mobile phone screen lock according to claim 1 based on Lian Fa section MTK processor communication agreement cracks
Method, it is further characterized in that: the guidance file is the guidance file encrypted by aes algorithm.
9. the Android system mobile phone screen lock based on Lian Fa section MTK processor communication agreement according to claim 1 or 8 is broken
Solution method, it is further characterized in that: the data area file that file declustering will be guided to communicate at two respectively guides 1 and guidance 2,
It is successively brushed into Android mobile phone to be processed into guidance 1 and guidance 2, carries out communication verification with mobile phone CPU, it is right after verifying successfully
Mobile phone CPU is written and read.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910364145.2A CN110113475A (en) | 2019-04-30 | 2019-04-30 | Android system mobile phone screen lock crack method based on Lian Fa section MTK processor communication agreement |
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| CN201910364145.2A CN110113475A (en) | 2019-04-30 | 2019-04-30 | Android system mobile phone screen lock crack method based on Lian Fa section MTK processor communication agreement |
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Family
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| CN114048402A (en) * | 2022-01-12 | 2022-02-15 | 深圳软牛科技有限公司 | FRP lock removing method, device, equipment and storage medium of Android system |
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Application publication date: 20190809 |