HackTheBox - RustyKey @ippsec
HackTheBox - RustyKey  @ippsec
Uploaded November 2025 | Updated September 2026, 2 weeks ago
00:00 - Introduction
01:00 - Start of nmap
05:00 - Syncing our time with the DC via NTPDate
10:12 - Writing a custom Cypher Query in Bloodhound to show everything that users and computers can directly do, except for group memberships. Discover an oddity around IT-COMPUTER3 and seeing its password set date is also odd
14:00 - Using NetExec to perform a TimeRoast attack and then cracking the computer password
18:15 - Back in Bloodhound, we can see IT-Computer3 has a path to take over several users
22:45 - Using BloodyAD to add ourself to the helpdesk group and then reset BB.MORGAN's password
25:00 - Still cannot log in, discovering BB.MORGAN is a member of the Protected Users/Objects group. Trying to use AES instead of RC4 with impacket, still have issue. Assume the domain doesn't support it, this feels weird.
29:30 - Using BloodyAD to remove the user from the Protected Objects group, the logging in with BB.MORGAN
35:30 - Find a PDF and it talks about Context Menus and COM Objects with Zip programs
39:10 - Using Req Query to show CLSID's then identifying support can modify the one that points to 7-zip's dll
44:00 - Using RunAsCS to switch to the support user (ee.reed) as remote logins appeared to be disabled for them
46:00 - Performing the COM Hijack on 7-zip and getting a reverse shell as mm.turner.
49:55 - Shell returned as mm.turner, who has the AllowedToAct on the DC
53:30 - Using Set-ADComputer to set the delegation permission, then getST to impersonate BackupAdmin get admin
01:05:05 - Showing why EE.REED could not login, diving into looking at the secpol command to dump security policies
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HackTheBox - RustyKey

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