Token Manipulation

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The win/token, win/impersonate, win/privilege, and privesc/uac packages provide Windows token manipulation: stealing tokens from other processes, thread impersonation, privilege escalation, and UAC bypass.

Architecture Overview

graph TD
    subgraph "win/token"
        STEAL["Steal(pid)"]
        STEALNAME["StealByName(name)"]
        STEALDUP["StealViaDuplicateHandle()"]
        OPEN["OpenProcessToken()"]
        INTERACTIVE["Interactive()"]
        PRIV["EnableAllPrivileges()"]
        TOKEN["*Token"]

        STEAL --> TOKEN
        STEALNAME --> STEAL
        STEALDUP --> TOKEN
        OPEN --> TOKEN
        INTERACTIVE --> TOKEN
        TOKEN --> PRIV
    end

    subgraph "win/impersonate"
        LOGON["LogonUserW()"]
        IMP["ImpersonateLoggedOnUser()"]
        THREAD["ImpersonateThread()"]
        THREAD --> LOGON --> IMP
    end

    subgraph "win/privilege"
        ISADMIN["IsAdmin()"]
        EXECAS["ExecAs()"]
        LOGONCREATE["CreateProcessWithLogon()"]
        RUNAS["ShellExecuteRunAs()"]
    end

    subgraph "privesc/uac"
        FOD["FODHelper()"]
        SLUI["SLUI()"]
        SILENT["SilentCleanup()"]
        EVT["EventVwr()"]
    end

    TOKEN -.->|"used by"| THREAD
    TOKEN -.->|"used by"| EXECAS

Documentation

Document	Description
Token Theft	Steal, StealByName, StealViaDuplicateHandle
Thread Impersonation	LogonUserW + ImpersonateLoggedOnUser
Privilege Escalation	ExecAs, CreateProcessWithLogon, UAC bypass

Quick decision tree

You want to…	Use
…steal a primary token from another PID	token-theft.md — `Steal(pid)`
…steal a token by process name	token-theft.md — `StealByName(name)`
…run code as `domain\user` with credentials	impersonation.md — `ImpersonateThread`
…run code as `NT AUTHORITY\SYSTEM`	impersonation.md — `GetSystem` (winlogon clone)
…run code as `TrustedInstaller`	impersonation.md — `GetTrustedInstaller`
…enable `SeDebugPrivilege` (or any SeXxx) on the current token	privilege-escalation.md — `EnablePrivilege`
…spawn a child process under alternate credentials	privilege-escalation.md — `ExecAs(...)`
…check if I'm admin / elevated right now	privilege-escalation.md — `IsAdmin()`
…trigger a UAC consent prompt and elevate	privilege-escalation.md — `ShellExecuteRunAs`

MITRE ATT&CK

Technique	ID	Description
Access Token Manipulation	T1134	Token theft and manipulation
Token Impersonation/Theft	T1134.001	Thread impersonation
Abuse Elevation Control Mechanism: UAC Bypass	T1548.002	FODHelper, SLUI, SilentCleanup, EventVwr

D3FEND Countermeasures

Countermeasure	ID	Description
Token Authentication and Authorization Normalization	D3-TAAN	Monitor token manipulation
User Account Profiling	D3-UAP	Detect privilege escalation

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