parses an $MFT file to bodyfile
shell
cargo install mft2bodyfile
shell
mft2bodyfile \$MFT >mft.bodyfile
mactime -b mft.bodyfile -d >mft.csv
Until now, me and my team used analyze_mft.py
to extract data from the $MFT
, when we got triage data from a customer. Unfortunately, analyze_mft.py
has some disadvantages:
* python2 is required
* either the $STANDARD_INFORMATION
or the $FILE_NAME
attribute used to generate the timestamps, bot not both of them at the same time. This always required us to merge both outputs, which is a little bit messy
* from time to time we had problems parsing the $MFT
So, at first we started to work on analyze_mft.py
to fix our complaints, but we soon got stuck when we discovered one additional disadvantage:
* If a file has its $FILE_NAME
attribute not stored in its base entry, but in some nonbase entry which is refered by an $ATTRIBUTE_LIST
attribute, then this file is not shown in the bodyfile.
You might think that "non-base MFT entries do not have the $FILE_NAME
and $STANDARD_INFORMATION
attributes in them", as Brian Carrier has stated in his great book. But we found that this does happen. Further investigation showed us that nearly all fast and simple tools have the same problem. So this was the last bit that led us write a tool for our own.
analyze_mft.py
Consider the following situation: You have a file, which has a lot of attributes. The list of attributes is so long, that it cannot be stored in an $MFT
entry. So, the $ATTRIBUTE_LIST
attribute is stored as a nonresident attribute, outside the $MFT
. At the moment, mft2bodyfile
is not able to find the corresponding $MFT
entries, and will generate a filename.
Can we fix this? Yes, we can. If we detect such a situation, we can search the $MFT
entries which refer to our base entry, and use those to find a $FILE_NAME
attribute.