Huawei backup decryptor
This script is introduced by the blog post at https://blog.digital-forensics.it/2019/07/huawei-backup-decryptor.html.
The kobackupdec is a Python3 script aimed to decrypt Huawei HiSuite or KoBackup (the Android app) backups. When decrypting and uncompressing the archives, it will re-organize the output folders structure trying to mimic the typical Android one. The script will work both on Windows and Linux hosts, provided the PyCryptoDome dependency.
The script assumes that backups are encrypted with a user-provided password. Actually it does not support the HiSuite self generated password, when the user does not provide its own.
usage: kobackupdec.py [-h] [-v] password backup_path dest_path
Huawei KoBackup decryptor version 20190729
positional arguments:
password user password for the backup
backup_path backup folder
dest_path decrypted backup folder
optional arguments:
-h, --help show this help message and exit
-v, --verbose verbose level, -v to -vvv
password, is the user provided password.backup_path, is the folder containing the Huawei backup, relative or absolute paths can be used. Be careful to provide the strictest path to data, because the script will start enumerating all files and folders starting from the provided path, parsing the file types it expects to find and copying out all the others. If by chance you wrongly provide c:\ as the backup path, well, expect to get a full volume copy in the destination folder (ignoring errors).dest_path, is the folder to be created in the specified path, absolute or relative. It will complain if the provided folder already exists.[-v](from-vto-vvv) verbosity level, written on stderr. It's suggested to use -vvv with a redirect to get a log of the process.
Z:\> py -3 kobackupdec.py -vvv 123456 "Z:\HUAWEI P30 Pro_2019-06-28 22.56.31" Z:\HiSuiteBackup
INFO:root:getting files and folder from Z:\HUAWEI P30 Pro_2019-06-28 22.56.31
INFO:root:parsing XML files...
INFO:root:parsing xml audio.xml
DEBUG:root:parsing xml file audio.xml
INFO:root:parsing xml document.xml
DEBUG:root:parsing xml file document.xml
INFO:root:parsing xml info.xml
DEBUG:root:ignoring entry HeaderInfo
DEBUG:root:ignoring entry BackupFilePhoneInfo
DEBUG:root:ignoring entry BackupFileVersionInfo
INFO:root:parsing xml picture.xml
DEBUG:root:parsing xml file picture.xml
INFO:root:parsing xml soundrecorder.xml
DEBUG:root:parsing xml file soundrecorder.xml
INFO:root:parsing xml video.xml
DEBUG:root:parsing xml file video.xml
DEBUG:root:crypto_init: using version 3.
DEBUG:root:SHA256(BKEY)[16] = b'8d969eef6ecad3c29a3a629280e686cf'
...
The output folder structure will be similar to the following one: data/data applications will be exploded in their proper paths, and the APKs will be restored too (not icons, actually). Note that the db folder will contain the special databases as created by the Huawei backups.
HiSuiteBackup
|-- data
| |-- app
| | |-- de.sec.mobile.apk-1
| | | [...]
| | `-- org.telegram.messenger.apk-1
| `-- data
| |-- de.sec.mobile
| | [...]
| `-- org.telegram.messenger
|-- db
| |-- HWlanucher.db
| |-- Memo.db
| |-- alarm.db
| |-- calendar.db
| |-- calllog.db
| |-- camera.db
| |-- clock.db
| |-- contact.db
| |-- harassment.db
| |-- phoneManager.db
| |-- setting.db
| |-- sms.db
| |-- soundrecorder.db
| |-- systemUI.db
| |-- weather.db
| `-- wifiConfig.db
`-- storage
|-- DCIM
|-- Download
|-- Huawei
|-- MagazineUnlock
|-- Notifications
|-- Pictures
|-- WhatsApp
|-- mp3
|-- parallel_intl
`-- s8-wallpapers-9011.PNG
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