CN103077261B - A kind of computer dynamic stimulating method that virtual environment intelligence is repaired - Google Patents
A kind of computer dynamic stimulating method that virtual environment intelligence is repaired Download PDFInfo
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- CN103077261B CN103077261B CN201210483138.2A CN201210483138A CN103077261B CN 103077261 B CN103077261 B CN 103077261B CN 201210483138 A CN201210483138 A CN 201210483138A CN 103077261 B CN103077261 B CN 103077261B
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Abstract
The present invention relates to the computer dynamic stimulating method that a kind of virtual environment intelligence is repaired, can overcome because virtual environment assembly or the incorrect virtual environment caused of its system information database content create unsuccessfully, cannot simulate and reappear original state, directly cause emulating failed problem, realize virtual environment intelligence and repair.The present invention automatical and efficient solution dynamic simulation operating system can unsuccessfully cause the situation cannot carrying out the original state of playback system because virtual environment creates, for judicial personnel, everything goes well with your work carries out and high-level efficiency provides guarantee.The present invention has filled up relevant blank in field, the method provided significantly can not only improve the work efficiency of judicial evidence collection personnel, promote evidence obtaining ability to work, their work complexity can also be reduced, save evidence obtaining cost, carry out clearing away advance obstacle smoothly for computer dynamic stimulating electronic evidence-collecting and other judicial process simultaneously, wide application and market outlook must be had.
Description
Technical field
The present invention relates to the method for a kind of computer dynamic stimulating evidence obtaining, more particularly, relate to the computer dynamic stimulating method that a kind of virtual environment intelligence is repaired.
Background technology
According to the difference of computer forensics state, generally computer forensics is divided into dynamic online evidence obtaining and static post-mordem forensics.Traditional static evidence mode is understood based on to the off-line of the electronic data in computing machine associated storage device and is analyzed.Set the writing of electronic data is needed to deposit and good data storage environment.If data fail write associated storage device or evidence obtaining condition undesirable when, the effect of static evidence will be had a greatly reduced quality.For example, the loss that the power-off operation static evidence carried out again afterwards will cause some important instant data in evidence obtaining destination host is first implemented to operating computer information system.Instant data are clear data mostly, wherein may contain solution password, the operation logout of each class method, the information such as write record, network instant communication data record of virtual memory of various ciphertext, these information finally can't be written in the memory device of computer system, and it can be died away along with the operation termination of system.Many times, obtaining these instant data can make evidence obtaining get twice the result with half the effort, thus its importance is also more and more subject to the attention of juridical authorities. but obtain these data and need carrying out online of evidence obtaining and study and judge dynamically to analyze to save from damage with collection, adopt static post-mordem forensics cannot meet the needs of instant data acquisition.
In addition, the data that static evidence obtains are all kinds of result datas that computer system is run. have what association between all kinds of electronic data how all kinds of electronic data is formed, obtained, which kind of operation user carried out in advance, the problem such as reason of data variation according to the method for static evidence afterwards, from result data, be difficult to the reason that these data of presumption produce, change, loss.Further, static evidence is difficult to reappear electronic data first in running environment, in the face of the electronic data of magnanimity, the accuracy of static evidence, the efficiency of evidence obtaining are greatly affected.
For satisfied evidence obtaining performance analysis actual needs, make up the deficiency of static post-mordem forensics.Along with computer simulation technique, disk redirect the research application of the computer technology such as technology, ShadoW, the technical conditions of computer dynamic stimulating forensic applications possess.Computer dynamic stimulating is widely used in the middle of various judicial evidence collection at present, uses dynamic simulation can reappear the original state of simulation objectives, operates, launch work of effectively collecting evidence at a high speed in the environment that judicial personnel can reappear in simulation.But, certain situation (as virtual environment assembly or its system information database content incorrect etc.), virtual environment often creates failure, cannot simulate and reappear original state, directly cause emulating unsuccessfully.
As Chinese invention patent application 200910194667.9 provides a kind of implementation method of computer virtualized evidence obtaining, by starting in virtualized mode in evidence obtaining dedicated computer system, obtain by the same operation interface and environment after evidence obtaining computer system starting, the raw data of memory device can not be rewritten, guarantee to modify to by the file on evidence obtaining memory device in evidence obtaining process, when carrying out evidence obtaining operation in virtualized environment, what see is no longer only file on computer-readable storage medium and data, operating system environment and user environment can also be seen, operate also convenient, realize object of the present invention.
But technical scheme disclosed in foregoing invention application cannot solve because virtual environment assembly or the incorrect virtual environment caused of its system information database content create unsuccessfully, cannot simulate and reappear original state, directly cause emulating failed problem.When computer dynamic stimulating usually creates and just cannot to carry out next step operation unsuccessfully running into virtual environment, or only have some very limited measures, prior art does not also have effective approach for solving the problem.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, thering is provided a kind of can overcome because virtual environment assembly or the incorrect virtual environment caused of its system information database content create unsuccessfully, cannot simulate and reappear original state, directly cause emulating failed problem, realize the computer dynamic stimulating method that virtual environment intelligence is repaired.
Method of the present invention not only can fundamentally make Problems existing effectively be solved, and produces apparent actual effect, requires across numerous operating system in the scope supported simultaneously.Its object supported includes but not limited to: Windows2000, WindowsXP(x86, x64), Windows2003(x86, x64), WindowsVista(x86, x64), Windows2008(x86, x64), Windows7(x86, x64), Windows8(x86, x64), each version Linux, based on the Macintosh of X86-based, Unix operating system.
Technical scheme of the present invention is as follows:
The computer dynamic stimulating method that virtual environment intelligence is repaired, comprises step:
1) the system information database content of defining virtual environment components, virtual environment assembly;
2) the system information database content of virtual environment assembly, virtual environment assembly is searched for from the virtual machine interscan of normal work, if meet definite condition, then record, otherwise ignore;
3) create according to for the OS Type of simulation object, version, cpu instruction collection kind and fill simulation virtual file, simulation virtual file comprises the system information database content of virtual environment assembly needed for emulation, virtual environment assembly;
4) by virtual reconstruction technology, be virtual container the object reconstruction be present in for the virtual presence of simulation object;
5) carry out virtual according to the system information database content of virtual environment assembly, virtual environment assembly in step 1), integrating step 3) OS Type, version, the cpu instruction collection kind imported into, be used in step 2) the virtual environment assembly that records, virtual environment assembly system information database content, revise one by one for each virtual environment assembly of simulation object, the system information database content of virtual environment assembly or replace;
6) analyse structure technology by virtual, the virtual container of the virtual presence for simulation object is deleted from native operating sys-tern;
7) again emulate for simulation object, create virtual environment, be the virtual environment of reparation.
As preferably, the virtual environment assembly described in step 1) comprises that data transmission, system cloud gray model passage, system cloud gray model passage are additional, the data capsule method of operation; The system information database content of virtual environment assembly comprises component devices table, device data table, global table, affiliated type list.
As preferably, in step 5), according to the type of the system information database content of virtual environment assembly, virtual environment assembly, select the virtual mode for particular type.
As preferably, step 2) described in definite condition be the type identification of system information database content of virtual environment assembly, virtual environment assembly.
As preferably, in step 5), for the content of operating system acquiescence restriction amendment, the protection attribute of first lifting operation authority or change content, then modify or replace.
As preferably, step 2) record virtual environment assembly, virtual environment assembly system information database content allow different or incomplete same with the assembly of the computer operating system of reality, system information database.
As preferably, the virtual container described in step 4) is physically in the valid data district of native operating sys-tern.
As preferably, the simulation virtual file described in step 3) also comprises data capsule and describes, virtual memory, virtual USB, virtual network, and virtual pattern controls, and virtual acoustic controls, virtual floppy drive, virtual drive, serial/parallel.
Beneficial effect of the present invention is as follows:
The present invention can automatical and efficient solution dynamic simulation Windows operating system, (SuSE) Linux OS, create the situation unsuccessfully causing carrying out the original state of playback system based on Macintosh, Unix operating system etc. of X86-based because of virtual environment, for judicial personnel, everything goes well with your work carries out and high-level efficiency provides guarantee.
The present invention has filled up relevant blank in field, the method provided significantly can not only improve the work efficiency of judicial evidence collection personnel, promote evidence obtaining ability to work, their work complexity can also be reduced, save evidence obtaining cost, carry out clearing away advance obstacle smoothly for computer dynamic stimulating electronic evidence-collecting and other judicial process simultaneously, wide application and market outlook must be had.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The computer dynamic stimulating method that virtual environment intelligence is repaired, comprises step:
1) the system information database content of defining virtual environment components, virtual environment assembly;
2) the system information database content of virtual environment assembly, virtual environment assembly is searched for from the virtual machine interscan of normal work, if meet definite condition, then record, otherwise ignore;
3) create according to for the OS Type of simulation object, version, cpu instruction collection kind and fill simulation virtual file, simulation virtual file comprises the system information database content of virtual environment assembly needed for emulation, virtual environment assembly;
4) by virtual reconstruction technology, be virtual container the object reconstruction be present in for the virtual presence of simulation object;
5) carry out virtual according to the system information database content of virtual environment assembly, virtual environment assembly in step 1), integrating step 3) OS Type, version, the cpu instruction collection kind imported into, be used in step 2) the virtual environment assembly that records, virtual environment assembly system information database content, revise one by one for each virtual environment assembly of simulation object, the system information database content of virtual environment assembly or replace;
6) analyse structure technology by virtual, the virtual container of the virtual presence for simulation object is deleted from native operating sys-tern;
7) again emulate for simulation object, create virtual environment, be the virtual environment of reparation.
Virtual environment assembly described in step 1) comprises data transmission, system cloud gray model passage, system cloud gray model passage add, the data capsule method of operation; The system information database content of virtual environment assembly comprises component devices table, device data table, global table, affiliated type list.
Step 2) described in definite condition be the type identification of system information database content of virtual environment assembly, virtual environment assembly.The virtual environment assembly of record, the system information database content of virtual environment assembly allow different or incomplete same with the assembly of computer operating system of reality, system information database.
Simulation virtual file described in step 3) also comprises data capsule and describes, virtual memory, virtual USB, virtual network, and virtual pattern controls, and virtual acoustic controls, virtual floppy drive, virtual drive, serial/parallel.
Virtual container described in step 4) is physically in the valid data district of native operating sys-tern.Virtual reconstruction technology can utilize the software of prior art (as VMMount) that data virtual is become a subregion (subregion that drive is Z as invented).
In step 5), according to the type of the system information database content of virtual environment assembly, virtual environment assembly, select the virtual mode for particular type.For the content of operating system acquiescence restriction amendment, the protection attribute of first lifting operation authority or change content, then modify or replace.
Virtual structure technology of analysing in step 6) can utilize the software of prior art (as VMMount) that virtual container is deleted (as inventing the subregion deletion that drive is Z).
Embodiment
As shown in Figure 1, method step of the present invention is as follows:
1, defining virtual environment components:
C1={c1,c2,c3,…cn}；
C2={c1,c2,c3,…cn}；
C3={c1,c2,c3,…cn}；
Cn={c1,c2,c3,…cn}；
Search for each virtual environment assembly from the virtual machine interscan of normal work, skipping over not in condition portion, drop on its related content, contents attribute, system information etc. are collected in condition portion and be saved to C1, C2, C3 ..., Cn.These virtual environment assembly contents can be different with the assembly of the computer operating system of reality.
Described virtual environment assembly comprises: data are transmitted, system cloud gray model passage, and system cloud gray model passage adds, the data capsule method of operation.Element in set is respectively the formation component of each large assembly.It is the type identification of each virtual component between described condition portion, drop in condition portion, namely each virtual component has type identification, if scanning search is identical with the type identification of the virtual component of definition to each type identification of virtual environment assembly, then preserve its related content, contents attribute, system information etc.
2, the system information database content of defining virtual environment components:
D1={d1,d2,d3,…dn}；
D2={d1,d2,d3,…dn}；
D3={d1,d2,d3,…dn}；
Dn={d1,d2,d3,…dn}；
Search for the system information database content of each virtual environment assembly from the virtual machine interscan of normal work, skipping not in condition and range, its relevant information, attribute, system relationship etc. are collected in condition and range is saved to D1, D2, D3 ..., Dn.These system information database contents of preserving can be different with the system information database of the computer operating system of reality, and generally it is all different.
Described system information database content comprises: component devices table, device data table, global table, affiliated type list.Element in set is respectively the formation component of each large database concept content.Described condition and range is the type identification of the system information database content of each virtual environment assembly, drop in condition and range, namely the system information database content of each virtual environment assembly has type identification, if scanning search is identical with the type identification of the system information database content of the virtual environment assembly of definition to the type identification of the system information database content of each virtual environment assembly, then preserve its relevant information, attribute, system relationship etc.
3, create according to the OS Type of simulated object, version, cpu instruction collection kind and fill simulation virtual file, these files comprise virtual description needed for emulation, virtual system information, various virtual additional relevant etc.The most important thing is, the virtual mode of the simulated virtual environment assembly in these file contents of filling, subsequent step performs smoothly to be needed to select the virtual mode type identical with the virtual mode of the simulated virtual environment assembly in the file content that these are filled.The virtual mode of virtual environment assembly has different classes of, some virtual environment component type are also divided into several different virtual mode types of mutual difference, different equipment can have different virtual modes, and what have can have more than one, and what have can only run with certain specific virtual mode.Show through actual experiment, some equipment can be emulated by different virtual modes, and some special equipment just can only emulate successfully with certain specific virtual mode smoothly.Which kind of virtual mode classification of concrete employing and the device-dependent specifically adopted, and determined by concrete equipment, it is not repeated in the application, do not affect the realization of method of the present invention.
The described virtual additional relevant data capsule that comprises describes, virtual memory, virtual USB, and virtual network, virtual pattern controls, and virtual acoustic controls, virtual floppy drive, virtual drive, serial/parallel etc.The virtual mode of the simulated virtual environment assembly in the file content of filling is determined by the virtual environment component type selected.
4, by virtual reconstruction technology, be a virtual container the object reconstruction of the virtual presence being present in simulated target.Virtual container is equivalent to a valid data district of native operating sys-tern physically, and to its any operation just as the local data of operation, any API of system is effective to it, comprises the operations such as document creation, read-write, deletion.But the reconstruct of virtual container, analysing structure and read-write can not to local or be connected to local remote content and have any impact.
5, according to the virtual mode of virtual environment assembly in the virtual file of step 3, in conjunction with the OS Type imported into, version, cpu instruction collection kind, the C1 of step 1 is used in, C2, C3 ... Cn, each virtual environment assembly of the simulated object in location, revises one by one it or replaces automatically.
It should be noted that not all virtual environment assembly can be revised or replace, if being led to errors by change of having even emulates failure.Therefore, to first judge it when operating each virtual environment assembly, as carried out ad hoc fashion operation to it in internal memory, then just can operate further, as will be first judged it when operating each virtual environment assembly, if read-only file, then in internal memory, this file is removed read only attribute, and then carry out writing, revise or replacing.
The virtual mode of the virtual environment assembly 6, described according to the virtual file of step 3, simultaneously according to the OS Type imported into, version, cpu instruction collection kind, be used in the D1 of step 2, D2, D3 ..., Dn, the system information database content of each virtual environment assembly of the simulated object in automatic location, one by one to its amendment.
In the process of amendment, not only operate normal content, the content for other state also will be radiated.The content that cannot conduct interviews for the file content hidden or common mode takes particular form to force to operate.Described particular form as lifting operation authority, and then carries out imperative operation to this file content.Described particular form forces the operation carried out to be applicable to step 5 too to modify or replace action when not allowing.
7, structure technology is analysed by virtual, the virtual container of the virtual presence of simulated target from safety deleting native operating sys-tern, mentioned above, all can not to local or be connected to other local content and have any impact to any operation of virtual container.
8, institute is in steps all after proper operation, again emulates simulated object, just successfully can create virtual environment, enters virtual system smoothly and carries out relevant evidence obtaining and operate.
Above-described embodiment is only used to the present invention is described, and is not used as limitation of the invention.As long as according to technical spirit of the present invention, change above-described embodiment, modification etc. all will be dropped in the scope of claim of the present invention.
Claims (8)
1. a computer dynamic stimulating method for virtual environment intelligence reparation, is characterized in that, comprise step:
1) the system information database content of defining virtual environment components, virtual environment assembly;
2) the system information database content of virtual environment assembly, virtual environment assembly is searched for from the virtual machine interscan of normal work, if meet definite condition, then record, otherwise ignore;
3) create according to for the OS Type of simulation object, version, cpu instruction collection kind and fill simulation virtual file, simulation virtual file comprises the system information database content of virtual environment assembly needed for emulation, virtual environment assembly;
4) by virtual reconstruction technology, be virtual container the object reconstruction be present in for the virtual presence of simulation object;
5) according to step 1) in virtual environment assembly, virtual environment assembly system information database content carry out virtual, integrating step 3) OS Type, version, the cpu instruction collection kind imported into, be used in step 2) the virtual environment assembly that records, virtual environment assembly system information database content, revise one by one for each virtual environment assembly of simulation object, the system information database content of virtual environment assembly or replace;
6) analyse structure technology by virtual, the virtual container of the virtual presence for simulation object is deleted from native operating sys-tern;
7) again emulate for simulation object, create virtual environment, be the virtual environment of reparation.
2. the computer dynamic stimulating method of virtual environment intelligence according to claim 1 reparation, it is characterized in that, step 1) described in virtual environment assembly comprise data transmission, system cloud gray model passage, system cloud gray model passage add-on assemble, the data capsule method of operation; The system information database content of virtual environment assembly comprises component devices table, device data table, global table, affiliated type list.
3. the computer dynamic stimulating method of virtual environment intelligence according to claim 2 reparation, it is characterized in that, step 5) in, according to the type of the system information database content of virtual environment assembly, virtual environment assembly, select the virtual mode for particular type.
4. the virtual environment according to claim 1 intelligence computer dynamic stimulating method of repairing, is characterized in that, step 2) described in definite condition be the type identification of system information database content of virtual environment assembly, virtual environment assembly.
5. the computer dynamic stimulating method of virtual environment intelligence according to claim 1 reparation; it is characterized in that, step 5) in, for the content of operating system acquiescence restriction amendment; the protection attribute of first lifting operation authority or change content, then modify or replace.
6. the computer dynamic stimulating method of virtual environment intelligence according to claim 1 reparation, it is characterized in that, step 2) the virtual environment assembly that records, virtual environment assembly system information database content allow different or incomplete same with the assembly of the computer operating system of reality, system information database.
7. the virtual environment according to claim 1 intelligence computer dynamic stimulating method of repairing, is characterized in that, step 4) described in virtual container be physically in the valid data district of native operating sys-tern.
8. the computer dynamic stimulating method of virtual environment intelligence according to claim 1 reparation, it is characterized in that, step 3) described in simulation virtual file also comprise data capsule describe, virtual memory, virtual USB, virtual network, virtual pattern controls, and virtual acoustic controls, virtual floppy drive, virtual drive, serial/parallel.
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| CN103544354B (en) * | 2013-10-31 | 2016-09-28 | 厦门市美亚柏科信息股份有限公司 | Network parallel computer dynamic emulation method and device |
| CN104615484B (en) * | 2015-02-13 | 2017-11-07 | 厦门市美亚柏科信息股份有限公司 | Adaptive sandbox construction method and its system |
| CN109344464A (en) * | 2018-09-14 | 2019-02-15 | 河南职业技术学院 | A kind of computer dynamic stimulating method that virtual starting is intelligently repaired |
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| WO1999057641A1 (en) * | 1998-05-01 | 1999-11-11 | Powerquest Corporation | Manipulation of virtual and live computer storage device partitions |
| WO2004090722A1 (en) * | 2003-04-11 | 2004-10-21 | Star Softcomm Pte Ltd | Data isolation system and method |
| US7409719B2 (en) * | 2004-12-21 | 2008-08-05 | Microsoft Corporation | Computer security management, such as in a virtual machine or hardened operating system |
| US20100115506A1 (en) * | 2006-12-11 | 2010-05-06 | Ljungbjoern Rune | Method and arrangement for software dependency resolution |
| CN101414277B (en) * | 2008-11-06 | 2010-06-09 | 清华大学 | Need-based increment recovery disaster-tolerable system and method based on virtual machine |
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