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Affichage des articles du novembre, 2017

Abusing network shares for efficient lateral movements and privesc (DirSharePivot)

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Background
About a year ago my team and I had were called to perform a forensic analysis on a customer network. The reason for this was that a computer was first infected by a ransomware, and for some (unknown) reasons, several other workstations were getting "infected" after only 3 hours.
After 5 hours (time of my intervention) I discovered that:
- 80% of the workstations were infected
- The network was partially segmented but the infection occurs on all segments
- A malware process was even running on the file Server as... "Domain Administrator" :-/
- No track of 4624 (Logon Type 3) events or any other track of lateral movements/authentications
Interesting... hum :)

In this article I will describe my analysis of the threat and also how to take advantage of this method in a "safer" and more "controlled" way to  move laterally (or even perform privesc) in red team operations. (practical exploitation code will be provided).
This method may be particular…