My analysis system is Windows 10; when I open a command prompt, I get "Microsoft Windows [Version 10.0.17134.228]".
I downloaded the *.e01 images files from the LoneWolf scenario that is available via the Digital Corpora site. The image is of a physical Windows 10 system. I then used FTK Imager to convert the split *.e0x images files into a unified raw/dd-style image, and I used that file (i.e., lonewolf_dd.001) in all of my testing.
This method is defunct, in part because it no longer seems to work.
I did try vhdxtool, as well, but that didn't work at all...I'm not working with a .vhd file that needs to be converted to a .vhdx file, I'm using a raw/dd-style image.
This method requires Dokan 0.7.4 and pretty much follows along from the Libvshadow section of my previous post. For this attempt, I used the extended libvshadow tools provided with vss_carver.py.
First, I used mmls (from the TSK tools) to determine the offset to the partition of interest:
mmls -i raw -t gpt g:\lonewolf\lonewolf_dd.001
From that, I saw:
Slot Start End Length Description
00: Meta 0000000000 0000000000 0000000001 Safety Table
01: ----- 0000000000 0000002047 0000002048 Unallocated
02: Meta 0000000001 0000000001 0000000001 GPT Header
03: Meta 0000000002 0000000033 0000000032 Partition Table
04: 00 0000002048 0001023999 0001021952 Basic data partition
05: 01 0001024000 0001226751 0000202752 EFI system partition
06: 02 0001226752 0001259519 0000032768 Microsoft reserved partition
07: 03 0001259520 1000214527 0998955008 Basic data partition
08: ----- 1000214528 1000215216 0000000689 Unallocated
The partition we're interested in is the one in bold, and the offset is 1259520 sectors, or 644874240 bytes. Using that information, I can run vshadowinfo (I don't have to, but I can):
vshadowinfo -o 644874240 g:\lonewolf\lonewolf_dd.001
From the output of the above command, I can see two VSCs, which is what I expected. Now, for vshadowmount:
vshadowmount -o 644874240 g:\lonewolf\lonewolf_dd.001 x:\
After running this command, do not expect the command to exit...it won't, until you hit Control-C. I minimized the command prompt (which was running with Admin privileges) and could see "VSS1" and "VSS2" in the X:\ volume via Windows Explorer.
Next, I opened FTK Imager 22.214.171.124, and added the X:\ volume as an logical drive evidence item, or I tried to. I got an error dialog that said simply "Incorrect function. (1)".
I then opened Autopsy 4.8.0, and tried to add the volume as a local disk data source to a case. Unfortunately, unlike FTK Imager, Autopsy did not 'see' the X:\ volume.
Arsenal Image Mounter
I downloaded Arsenal Image Mounter, and used it to mount the image file. When mounting, I chose the "Read Only" option (the "Write Temporary" option was grayed out, and reportedly not available for raw/dd-style images). The image was mounted as "F:\", and I could easily browse the volume via Windows Explorer.
I had also downloaded ShadowExplorer 0.9, and when I opened it, it did not recognize the F:\ volume. I could see C:\, D:\, and G:\ (ext HDD where the image was stored).
Finally, I tried vss.exe, mentioned in my previous post; however, I should note that Jimmy Weg seems to no longer maintain his "justaskweg" domain, or the site(s) referenced in my original blog post. Further, the copy of vss.exe that I have has no identifying information (file version info), nor any syntax info.
I mounted the image via Arsenal Image Mounter (just like I did above), and got identifiers for both VSCs:
vssadmin list shadows /for=f:
I copied the ID for one of the VSCs to the clipboard, and then pasted it into the following command:
vss x: Shadow Copy Volume: \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy47
The response I got back was:
Drive X: ---> \Device\HarddiskVolumeShadowCopy47
Okay...that's a start. I then opened FTK Imager and added the X:\ volume as a logical drive evidence item, and was easily able to traverse through the image, just as I normally would.
Of all of the methods tested, only vss.exe in conjunction with Arsenal Image Mounter was the one method that worked.
Addendum, 5 Sept
I've continued my testing, but before I kicked off the summary, I wanted to provide a link for vss.exe. Thanks to Brian Maloney for tracking that down.
One thing that's been clear over the past day or so is that even providing clear documentation (above) as to what I did, and where I got the tools, there's been a significant disconnect with respect to those offering assistance. It appears that the biggest one is that when we say "Arsenal Image Mounter", apparently, we're not all referring to the same thing. I got a copy of Arsenal Image Mounter from Github, not from the from the main ArsenalRecon.com web site, and that appears to make a significant difference. In particular, the option to mount a raw/dd image in "Write Temporary" mode is specifically NOT supported in this version of the tool.
So, to clarify, what I've been looking to do is get working processes for accessing VSCs within acquired images, using free and/or open source tools that run on Windows.
To get this version of Arsenal Image Mounter to work, I had to do a couple of things. First, I had to download libewf.dll (My system is x64, so I used the DLLs from this location). I then copied the libewf.dll from my Autopsy installation over to the same folder as the Arsenal Image Mount tool, overwriting the older version of libewf.dll (there was some speculation online that the older version of libewf.dll was causing problems). Finally, I had to open the E01 files from the Lone Wolf scenario, rather than the raw/dd format image (I'd opened the E0x image files in FTK Imager and exported a raw/dd image, so I had both available). Once I did that, I was able to use Shadow Explorer to successfully view and access the VSCs.
The process that appears to work for raw/dd images is to use the Arsenal Image Mounter to mount the image file in Read Only mode, and then use vssadmin (via an Admin-level command prompt) to list the VSCs, and then mount a VSC as X:\ (or whatever you choose) via vss.exe. Once you've done that, you can open the now mounted VSC via FTK Imager,
I have been trying to use vss_carver, but it seems to stop or get stuck at "Stage 5: Checking next block offset lists." Does anyone have any experience with this utility that could tell me what to do to make it work properly?
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