Restoring backups after the Harma ransomware virus
The Harma ransomware virus does not fully encrypt this applies to all large files larger than 100MB. I figured out a bit what was damaged in the * .tib archive . The file header is 262144 bytes in size (in the HEX-editor from 0000 0000 to 0004 0000) is filled with 0. At the end of the file, data of the same size is also cut and recreated with new data, where is the area (if the end of the deleted archive is counted from 0000 0000) 000C 013F is filled with 0, then comes the encrypted part for the header and end of the file 000C 013F to 0010 012F. And now about restoring the archive itself. Took for a working image of the archive created from the same partition of the disk as the archive that I want to restore. I used the HEX editor FlexHex (as for me it is very simple and convenient). I cut the header from the created archive and transferred it to the editable one, also performed different transfer options in the tail, and saved every time. Acronis TI at the same time gives an error reading the archive. I tried the options, taking as a basis the archives of a clean disk (partition), I also tried to recreate other directories with directories without files. Then I don’t know where to look for a solution.


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