
إطار عمل جمع الأدلة لنظام لينكس
المؤلفة: أليكسندرا كارترايت
أبريل 2022
يقوم إطار اكتساب الأدلة لأنظمة لينكس (LEAF) بجمع القطع الأثرية والأدلة من أنظمة لينكس EXT4، ويقبل إدخال المستخدم لتخصيص وظائف الأداة لسهولة التوسع. من خلال تقديم عدة وحدات ومعاملات كمدخلات، يستطيع LEAF استخدام التحليل الذكي لاستخراج القطع الأثرية لأنظمة لينكس وإخراجها إلى ملف صورة ISO.
LEAF_master.py [-h] [-i INPUT [INPUT ...]] [-o OUTPUT] [-u USERS [USERS ...]] [-c CATEGORIES [CATEGORIES ...]] [-v]
[-s] [-g [GET_FILE_BY_OWNER [GET_FILE_BY_OWNER ...]]] [-y [YARA [YARA ...]]]
[-yr [YARA_RECURSIVE [YARA_RECURSIVE ...]]] [-yd [YARA_DESTINATIONS [YARA_DESTINATIONS...]]]
LEAF (Linux Evidence Acquisition Framework) - Cartware
____ _________ ___________ __________
/ / / _____/ / ____ / / ______/
/ / / /____ / /___/ / / /____
/ / / _____/ / ____ / / _____/
/ /_____ / /_____ / / / / / /
/_________/ /_________/ /___/ /___/ /___/ v2.0
معالجة أنظمة ملفات أوبونتو 20.04/ديبيان للقطع الأثرية الجنائية، واستخراج البيانات المهمة، وتصدير المعلومات إلى ملف ISO9660. متوافق مع نظام ملفات EXT4 والمواقع الشائعة على نظام تشغيل أوبونتو 20.04. راجع صفحة المساعدة لمزيد من المعلومات. الاستخدام المقترح: لا تقم بتشغيله من داخل مجلد LEAF/
optional arguments:
-h, --help show this help message and exit
-i INPUT [INPUT ...], --input INPUT [INPUT ...]
Additional Input locations. Separate multiple input files with spaces
Default: /home/user1/Desktop/LEAF-3/target_locations
-o OUTPUT, --output OUTPUT
Output directory location
Default: ./LEAF_output
-u USERS [USERS ...], --users USERS [USERS ...]
Users to include in output, separated by spaces (i.e. -u alice bob root).
Users not present in /etc/passwd will be removed
Default: All non-service users in /etc/passwd
-c CATEGORIES [CATEGORIES ...], --categories CATEGORIES [CATEGORIES ...]
Explicit artifact categories to include during acquisition.
Categories must be separated by space, (i.e. -c network users apache).
Full List of built-in categories includes:
APPLICATIONS, EXECUTIONS, LOGS, MISC, NETWORK, SHELL, STARTUP, SERVICES, SYSTEM, TRASH, USERS
Categories are compatible with user-inputted files as long as they follow the notation:
# CATEGORY
/location1
/location2
.../location[n]
# END CATEGORY
Default: "all"
-v, --verbose Output in verbose mode, (may conflict with progress bar)
Default: False
-s, --save Save the raw evidence directory
Default: False
-g [GET_OWNERSHIP [GET_OWNERSHIP ...]], --get_ownership [GET_OWNERSHIP [GET_OWNERSHIP ...]]
Get files and directories owned by included users.
Enabling this will increase parsing time.
Use -g alone to parse from / root directory.
Include paths after -g to specify target locations (i.e. "-g /etc /home/user/Downloads/
Default: Disabled
-y [YARA [YARA ...]], --yara [YARA [YARA ...]]
Configure Yara IOC scanning. Select -y alone to enable Yara scanning.
Specify '-y /path/to/yara/' to specify custom input location.
For multiple inputs, use spaces between items,
i.e. '-y rulefile1.yar rulefile2.yara rule_dir/'
All yara files must have ".yar" or ".yara" extension.
Default: None
-yr [YARA_RECURSIVE [YARA_RECURSIVE ...]], --yara_recursive [YARA_RECURSIVE [YARA_RECURSIVE ...]]
Configure Recursive Yara IOC scanning.
For multiple inputs, use spaces between items,
i.e. '-yr rulefile1.yar rulefile2.yara rule_dir/'.
Directories in this list will be scanned recursively.
Can be used in conjunction with the normal -y flag,
but intersecting directories will take recursive priority.
Default: None
-yd [YARA_DESTINATIONS [YARA_DESTINATIONS...]], --yara_destinations [YARA_DESTINATIONS [YARA_DESTINATIONS...]]
Destination to run yara files against.
Separate multiple targets with a space.(i.e. /home/alice/ /bin/star/)
Default: All user directories
To use default arguments [this will use default input file (./target_locations), users (all users), categories (all categories), and output location (./LEAF_output/). Cloned data will not be stored in a local directory, verbose mode is off, and yara scanning is disabled]:
LEAF_main.py
All arguments:
LEAF_main.py -i /home/alice/Desktop/customfile1.txt -o /home/alice/Desktop/ExampleOutput/ -c logs startup services apache -u alice bob charlie -s -v -y /path/to/yara_rule1.yar -yr /path2/to/yara_rules/ -yd /home/frank -g /etc/
To specify usernames, categories, and yara files:
LEAF_main.py -u alice bob charlie -c applications executions users -y /home/alice/Desktop/yara1.yar /home/alice/Desktop/yara2.yar
To include custom input file(s) and categories:
LEAF_main.py -i /home/alice/Desktop/customfile1.txt /home/alice/Desktop/customfile2.txt -c apache xampp
apt install python3)apt install pip3)pip3 install -r requirements.txt)sudo -H pip3 install -r requirements.txtsudo python3 LEAF_master.py مع المعاملات الاختيارية