CN100465981C - U-disc virus prevention interface - Google Patents
U-disc virus prevention interface Download PDFInfo
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- CN100465981C CN100465981C CNB2007100490392A CN200710049039A CN100465981C CN 100465981 C CN100465981 C CN 100465981C CN B2007100490392 A CNB2007100490392 A CN B2007100490392A CN 200710049039 A CN200710049039 A CN 200710049039A CN 100465981 C CN100465981 C CN 100465981C
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Abstract
The invention relates to an anti-U-disk virus interface preventing viruses like autorun.inf from destroying computer system. The interface consists of a USB switch, a USB chip, a SCM, a LED, a power switch, a computer interface, and a U-disk interface. The technical proposal is as follows: The computer interface is connected with the USB interface; the U-disk interface is connected with the U-disk; data line of USB switch is connected with data lines of computer interface, USB chip, and U-disk interface separately; a control line of the SCM is connected with the USB switch, the USB chip, the LED, and the power switch separately; the USB switch, the USB chip, the SCM, the power switch, and the computer interface share the same power source; the U-disk interface is connected with the power output end of the power switch. With simple structure, small bulk, and easy carrying, the device can be widely used for avoiding the destroying of computer viruses.
Description
Technical field
The present invention relates to a kind of U-disc virus prevention interface that is used to prevent that virus from may do great damage to computer information system, belong to computing machine anti-virus equipment.
Background technology
Computer virus no longer is a strange noun also, and every virus all may cause serious destruction to computer information system.We may often be subjected to the puzzlement of disk autorun.inf viroid.This virus is utilized the disk function activation operation of operation automatically, propagates, thereby also claims USB flash disk virus by USB flash disk, MP3, portable hard drive.The autorun.inf file and a * * * .exe virus document (* * * is the virus name) that all must generate a hiding attribute under the root directory of USB flash disk of disk autorun.inf viroid have been suffered.Open autorun.inf, can see open=***.exe or shellexecute=***.exe.When you double-click the * * * .exe Virus that drive just moves appointment automatically.In all disks of showing often after should virus to be under the system can't open, the right-click disk finds it should was that the instruction of " opening " has but become " playing automatically " originally.Even if the refitting system double-clicks other and do not format subregion, symptom still.This virus also can cause serious consequences such as computer run is slow, destruction data, and its harmfulness is huge.The way that generally adopts is that legal antivirus software is installed now, bring in constant renewal in, kill virus, but this also is a kind of remedial measure, and viral in addition renewal speed generally all is higher than antivirus software.
Summary of the invention
The objective of the invention is: for the operation that prevents disk autorun.inf viroid causes puzzlement or havoc to computer information system, the spy provides a kind of U-disc virus prevention interface.
In order to achieve the above object, the technical solution used in the present invention is: a kind of U-disc virus prevention interface, be made up of USB switch, USB chip, single-chip microcomputer, LED, power switch and computer interface and USB flash disk interface, it is characterized in that: computer interface 1 connects the computing machine USB interface; USB flash disk interface 7 connects USB flash disk; The data line of USB switch 2 is connected with the data line of computer interface 1, the data line of USB chip 3 and the data line of USB flash disk interface 7 respectively; The control line of single-chip microcomputer 4 is connected with USB switch 2, USB chip 3, LED5 and power switch 6 respectively; The power supply of USB switch 2, USB chip 3, single-chip microcomputer 4, power switch 6 and computer interface 1 is same power supply; The power supply input of USB flash disk interface 7 is connected in the power output end of power switch 6.
The present invention has following beneficial effect: (1) need not be changed under the prerequisite of computing machine or USB flash disk structure, can prevent effectively that virus from causing puzzlement and destruction to computer information system; (2) this device structure is simple, volume is little, is easy to carry.
Description of drawings
Fig. 1 is the structural representation of U-disc virus prevention interface provided by the invention.Among the figure: 1 is computer interface, and 2 is the USB switch, and 3 is the USB chip, and 4 is single-chip microcomputer, and 5 is LED, and 6 is power switch, and 7 is the USB flash disk interface.
Embodiment
After computer interface 1 was inserted into the computing machine USB interface, single-chip microcomputer 4 began USB switch 2 and USB chip 3 are carried out initialization, and control power switch 6 is in closure state.USB switch 2 is connected the usb signal of USB chip 3 with the usb signal of USB flash disk interface 7, whether single-chip microcomputer 4 is inquired about repeatedly has USB flash disk to insert USB flash disk interface 7, this moment, single-chip microcomputer 4 was a master control system, computing machine also has neither part nor lot in control, only be for system provides power supply, so just can prevent that USB flash disk virus from entering computing machine before handling.After single-chip microcomputer 4 has detected USB flash disk insertion USB flash disk interface 7, start USB flash disk file analysis program, whether USB flash disk root directory under have autorun.inf file, if find the autorun.inf file just its content to be emptied if searching.Single-chip microcomputer 4 control USB chips 3 quit work then, control power switch 6 places off-state, control USB switch 2 is connected the usb signal of computer interface 1 with the usb signal of USB flash disk interface 7, single-chip microcomputer 4 is reduced to closure state with power switch 6 again, makes USB flash disk restart.Single-chip microcomputer 4 enters dormant state, and the control of USB flash disk is given back computing machine, and wherein LED5 is used to indicate the duty of single-chip microcomputer 4, and LED5 lights during single-chip microcomputer 4 work, and LED5 extinguishes after single-chip microcomputer 4 dormancy.Because the content of autorun.inf file is cleared, thus disk autorun.inf viroid because there is not the activation of disk AutoPlay function, so just die among USB flash disk, thereby play the function of anti-virus.
When using U-disc virus prevention interface, only need computer interface 1 is inserted the computing machine USB interface, again USB flash disk is inserted USB flash disk interface 7 and get final product.
Claims (1)
1. a U-disc virus prevention interface is made up of USB switch, USB chip, single-chip microcomputer, LED, power switch and computer interface and USB flash disk interface, it is characterized in that: computer interface (1) connects the computing machine USB interface; USB flash disk interface (7) connects USB flash disk; The data line of USB switch (2) is connected with the data line of computer interface (1), the data line of USB chip (3) and the data line of USB flash disk interface (7) respectively; The control line of single-chip microcomputer (4) is connected with USB switch (2), USB chip (3), LED (5) and power switch (6) respectively; The power supply of USB switch (2), USB chip (3), single-chip microcomputer (4), power switch (6) and computer interface (1) is same power supply; The power supply input of USB flash disk interface (7) is connected in the power output end of power switch (6); After computer interface (1) was inserted into the computing machine USB interface, single-chip microcomputer (4) began USB switch (2) and USB chip (3) are carried out initialization, and control power switch (6) is in closure state; USB switch (2) is connected the usb signal of USB chip (3) with the usb signal of USB flash disk interface (7), whether single-chip microcomputer (4) is inquired about repeatedly has USB flash disk to insert USB flash disk interface (7), single-chip microcomputer this moment (4) is a master control system, computing machine also has neither part nor lot in control, only be for system provides power supply, so just can prevent that USB flash disk virus from entering computing machine before handling; After single-chip microcomputer (4) has detected USB flash disk insertion USB flash disk interface (7), start USB flash disk file analysis program, search whether autorun is arranged under the USB flash disk root directory.The inf file is if find autorun.The inf file just empties its content, single-chip microcomputer (4) control USB chip (3) quits work then, control power switch (6) places off-state, control USB switch (2) is connected the usb signal of computer interface (1) with the usb signal of USB flash disk interface (7), single-chip microcomputer (4) is reduced to closure state with power switch (6) again, make USB flash disk restart, single-chip microcomputer (4) enters dormant state, and the control of USB flash disk is given back computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100490392A CN100465981C (en) | 2007-04-29 | 2007-04-29 | U-disc virus prevention interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100490392A CN100465981C (en) | 2007-04-29 | 2007-04-29 | U-disc virus prevention interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105828A CN101105828A (en) | 2008-01-16 |
| CN100465981C true CN100465981C (en) | 2009-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100490392A Expired - Fee Related CN100465981C (en) | 2007-04-29 | 2007-04-29 | U-disc virus prevention interface |
Country Status (1)
| Country | Link |
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| CN (1) | CN100465981C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887495B (en) * | 2009-05-15 | 2012-10-17 | 群联电子股份有限公司 | Controller for preventing diffusion of computer virus as well as storage system and storage method thereof |
| TWI421725B (en) * | 2009-10-22 | 2014-01-01 | Transcend Information Inc | Malicious code autorun blocking method for a portable device and the portable device thereof |
| CN101901559B (en) * | 2010-07-30 | 2011-12-28 | 中国船舶重工集团公司第七0九研究所 | Safety control method for USB (Universal Serial Bus) interface |
| CN101950335A (en) * | 2010-08-10 | 2011-01-19 | 江西省南城网信电子有限公司 | System and method for realizing secure connection of network hard disk and external equipment |
| CN101968841A (en) * | 2010-11-09 | 2011-02-09 | 北京安天电子设备有限公司 | Anti-virus and decryption method and device for USB mobile storage apparatus |
| CN102004705B (en) * | 2010-11-24 | 2012-04-18 | 国核信息科技有限公司 | USB storage device based on hardware encryption |
| CN107220568A (en) * | 2017-06-08 | 2017-09-29 | 滨州学院 | One kind is with fool proof computer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003077129A1 (en) * | 2002-03-13 | 2003-09-18 | Win Enterprise Co., Ltd. | Apparatus for protecting computer using functional character |
| JP2004021510A (en) * | 2002-06-14 | 2004-01-22 | Hirofumi Mihashi | System and apparatus for usb network automatic disconnection and restoration |
| CN2689306Y (en) * | 2004-03-20 | 2005-03-30 | 张明琴 | Data safety protector of computer |
| CN1667595A (en) * | 2005-03-03 | 2005-09-14 | 上海中策工贸有限公司 | Multiple flash memory apparatus for USB flash memory discs |
| WO2005109302A2 (en) * | 2004-05-03 | 2005-11-17 | Siemens Aktiengesellschaft | Portable data storage device |
-
2007
- 2007-04-29 CN CNB2007100490392A patent/CN100465981C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003077129A1 (en) * | 2002-03-13 | 2003-09-18 | Win Enterprise Co., Ltd. | Apparatus for protecting computer using functional character |
| JP2004021510A (en) * | 2002-06-14 | 2004-01-22 | Hirofumi Mihashi | System and apparatus for usb network automatic disconnection and restoration |
| CN2689306Y (en) * | 2004-03-20 | 2005-03-30 | 张明琴 | Data safety protector of computer |
| WO2005109302A2 (en) * | 2004-05-03 | 2005-11-17 | Siemens Aktiengesellschaft | Portable data storage device |
| CN1667595A (en) * | 2005-03-03 | 2005-09-14 | 上海中策工贸有限公司 | Multiple flash memory apparatus for USB flash memory discs |
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| Publication number | Publication date |
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| CN101105828A (en) | 2008-01-16 |
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Granted publication date: 20090304 Termination date: 20120429 |