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99 lines
3.1 KiB
Markdown
99 lines
3.1 KiB
Markdown
# 图像采集与挂载
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{{#include ../../banners/hacktricks-training.md}}
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## 采集
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### DD
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```bash
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#This will generate a raw copy of the disk
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dd if=/dev/sdb of=disk.img
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```
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### dcfldd
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```bash
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#Raw copy with hashes along the way (more secur as it checks hashes while it's copying the data)
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dcfldd if=<subject device> of=<image file> bs=512 hash=<algorithm> hashwindow=<chunk size> hashlog=<hash file>
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dcfldd if=/dev/sdc of=/media/usb/pc.image hash=sha256 hashwindow=1M hashlog=/media/usb/pc.hashes
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```
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### FTK Imager
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您可以[**从这里下载 FTK imager**](https://accessdata.com/product-download/debian-and-ubuntu-x64-3-1-1)。
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```bash
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ftkimager /dev/sdb evidence --e01 --case-number 1 --evidence-number 1 --description 'A description' --examiner 'Your name'
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```
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### EWF
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您可以使用[ **ewf tools**](https://github.com/libyal/libewf)生成磁盘映像。
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```bash
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ewfacquire /dev/sdb
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#Name: evidence
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#Case number: 1
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#Description: A description for the case
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#Evidence number: 1
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#Examiner Name: Your name
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#Media type: fixed
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#Media characteristics: physical
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#File format: encase6
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#Compression method: deflate
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#Compression level: fast
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#Then use default values
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#It will generate the disk image in the current directory
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```
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## 挂载
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### 几种类型
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在 **Windows** 上，您可以尝试使用 Arsenal Image Mounter 的免费版本 ([https://arsenalrecon.com/downloads/](https://arsenalrecon.com/downloads/)) 来 **挂载取证镜像**。
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### 原始
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```bash
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#Get file type
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file evidence.img
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evidence.img: Linux rev 1.0 ext4 filesystem data, UUID=1031571c-f398-4bfb-a414-b82b280cf299 (extents) (64bit) (large files) (huge files)
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#Mount it
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mount evidence.img /mnt
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```
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### EWF
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```bash
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#Get file type
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file evidence.E01
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evidence.E01: EWF/Expert Witness/EnCase image file format
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#Transform to raw
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mkdir output
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ewfmount evidence.E01 output/
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file output/ewf1
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output/ewf1: Linux rev 1.0 ext4 filesystem data, UUID=05acca66-d042-4ab2-9e9c-be813be09b24 (needs journal recovery) (extents) (64bit) (large files) (huge files)
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#Mount
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mount output/ewf1 -o ro,norecovery /mnt
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```
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### ArsenalImageMounter
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这是一个用于挂载卷的Windows应用程序。您可以在此处下载 [https://arsenalrecon.com/downloads/](https://arsenalrecon.com/downloads/)
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### 错误
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- **`cannot mount /dev/loop0 read-only`** 在这种情况下，您需要使用标志 **`-o ro,norecovery`**
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- **`wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error.`** 在这种情况下，挂载失败是因为文件系统的偏移量与磁盘映像的偏移量不同。您需要找到扇区大小和起始扇区：
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```bash
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fdisk -l disk.img
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Disk disk.img: 102 MiB, 106954648 bytes, 208896 sectors
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Units: sectors of 1 * 512 = 512 bytes
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Sector size (logical/physical): 512 bytes / 512 bytes
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I/O size (minimum/optimal): 512 bytes / 512 bytes
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Disklabel type: dos
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Disk identifier: 0x00495395
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Device Boot Start End Sectors Size Id Type
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disk.img1 2048 208895 206848 101M 1 FAT12
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```
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请注意扇区大小为 **512**，起始为 **2048**。然后像这样挂载镜像：
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```bash
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mount disk.img /mnt -o ro,offset=$((2048*512))
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```
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{{#include ../../banners/hacktricks-training.md}}
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