095. Inside Play Ransomware Toolkit: WKTools

Hello everyone! I hope you are still not bored digging into ransomware gang's toolkit. This time we'll look at another defense evasion tool - WKTools. 

Yes, this is another tool abused by adeversaries to terminate AV/EDR related processes. For example, it's used by Play ransomware gang ITW.

Let's start from detecting the tool execution:

event_type: "processcreatewin"

AND

(proc_file_originalfilename: "WKTools.exe"

OR

proc_file_description: "Windows Kernel Tools"

OR

proc_file_productname: "WKTools")

As you may have guessed, the tool creates a driver:

event_type: "filecreatewin"

AND

file_name: "wktools.sys"

And also it deletes the driver:

event_type: "filedeletewin"

AND

file_name: "wktools.sys"

As you can see, most of the tools are really noisy, so all you need is to know where to look!

See you tomorrow!

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