Investigation of Administrative shares for ransomware deployment
We have already discussed how ransomware affiliates may abuse Administrative shares to enable lateral movement. The same technique can be used by threat actors for ransomware deployment. A good example is PsExec. Some affiliates use pre-made batch files in order to copy a ransomware executable to the target hosts and then execute it with help of PsExec.
It's not the only technique that exploits Administrative shares, of course. Let's look at another example, and start from the MFT-based timeline one more time:
On the preceding screenshot, you can see a bunch of ransom notes created by a malicious executable, and also a suspicious Prefetch file.
When we are talking about Administrative shares abuse, a very common artifact you should always focus on is a service installation event. You can find it in System.evtx
Windows...