After the IPC is infected by viruses or hackers, the engine area of the hard disk may be damaged, or the hard disk or partition may be lost. This problem is usually caused by hackers or viruses correcting the boot area of the hard drive or encrypting the partition table or moving the sectors of the boot area. After this kind of problem occurs in the hard disk, there will generally be a lack of operating system, wrong loading, or perhaps the hard disk is locked by a logical lock.
1. Measures for the rehabilitation of virus data in the infection guidance area
When the boot area of the IPC hard disk is infected by a virus, the virus will encrypt the partition table or move the boot area. At this time, it is not easy to use antivirus software to disinfect the virus, so the partition will be lost after the antivirus and you will not be able to retrieve your data. You are able to back up the primary boot area and the boot area before antivirus, and then back up the antivirus.
When the partition is lost after antivirus, we can go through backup and recovery, so that the data will not be lost. When the data is lost after we have antivirus, we can use the f10 function of kv3000 to retrieve the lost partition. We can also use low-level disk correction tools to find backups of the home boot area in channel 0, and we can also use fdisk/mbr to rebuild the home boot area and correct the partition table according to the situation. The basic idea of modifying the partition table is to find the sector ending in 55AA, then determine whether it is a partition table according to the structure of the sector and whether there is a fat table at the end, and finally fill in the partition table according to the location of the C drive.
Second, the "logical lock" failed hacker attack such a data rehabilitation method
"Logical lock" is a hacker who artificially corrects the partition table of the hard disk, forming an endless loop and causing the system to collapse. Please refer to the steps below:
The first step is to shield the hard disk with CMOS, start the system with CD, and perform low-level operation on the hard disk with DM software.
Step 2: You can also create a DOS boot disk and use diskedit to correct the sys files on the boot disk. Replace C20306E80a0077203 with C20390E80a0078090. Then use the corrected boot disk to start the logically determined hard disk, and finally use debug to correct the partition table of the hard disk.
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