Need (XQL) BIOC Rule for starting CMD/Powershell through LNK Files

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Need (XQL) BIOC Rule for starting CMD/Powershell through LNK Files

L4 Transporter

Hello dear Community, 

 

as you know a very common attack is loading code directly to memory. This happens sometimes through a LNK File or Office Macros. 

In my case I want to hunt for LNK Files, which were doubleclicked and a cmd or powershell was started. As I queried my test process (LNK --> powershell --> cmd = "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -c cmd.exe), there is no indicator, that the powershell was started through a link file. 

What am I missing in my plan to hunt for these? Has someone a ready to hunt query?

 

BR

 

Rob

2 REPLIES 2

L5 Sessionator

Hello Rob,

 

Thank you for writing to live community!

 

My I know, whether you have tested or reproduced the scenario  or is they any activity in your environment to hunt with the given command?

 

Regards.

 

Ashutosh Patil

Hello @aspatil

 

I try to hunt these, because as you know, this is an common attack scenario where the adversaries want to load their skripts direct into memory. 

I just want to know, if there is a possibility to hunt for these ones. 

 

BR

 

Rob

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