1.5 KiB
DeepWhite
Detective whitelisting using Sysmon event logs
VirusTotal and Whitelisting setup
Setting up VirusTotal hash submissions and whitelisting:
The hash checker requires Post-VirusTotal:
It also requires a VirusTotal API key:
Then configure your VirusTotal API key:
set-VTAPIKey -APIKey <API Key>
The script assumes a personal API key, and waits 15 seconds between submissions.
Generating a Whitelist
Install hashdeep: https://github.com/jessek/hashdeep/releases
Generate a custom whitelist on Windows (note: this is optional):
C:\> hashdeep.exe -r / -c md5,sha1,sha56 > raw-hashes.csv
Note that hashdeep, etc., has a dumb recursive design (from the manpage):
Enables recursive mode. All subdirectories are traversed. Please note that recursive mode cannot be used to examine all files of a given file extension. For example, calling hashdeep -r *.txt will examine all files in directories that end in .txt. Move file to Unix/Linux, remove Windows carriage returns, grab EXEs and DLLs, make CSV.
On Linux/Unix: create a new CSV with the proper header (required by PowerShell's ConvertFrom-Csv), take the raw CSV, remove the carriage returns, select DLLs, EXEs and SYS files, grab the 2nd field to the end, and append to the new CSV:
$ echo "md5,sha1,sha256,path" > file-whitelist.csv
$ cat raw-hashes.csv | tr -d '\r' | egrep "\.dll$|\.exe$|\.sys$" | cut -d, -f2- >> file-whitelist.csv