From 323c594c914c2c9038a880ea87d2b07a47741841 Mon Sep 17 00:00:00 2001
From: Enrico204 <enrico204@gmail.com>
Date: Mon, 23 Aug 2021 11:05:33 +0200
Subject: [PATCH] Add impersonate self syscall

---
 syscallex/advapi32_windows.go | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/syscallex/advapi32_windows.go b/syscallex/advapi32_windows.go
index 77afd53..69f2203 100644
--- a/syscallex/advapi32_windows.go
+++ b/syscallex/advapi32_windows.go
@@ -42,6 +42,7 @@ var (
 
 	procCreateProcessWithLogonW = modadvapi32.NewProc("CreateProcessWithLogonW")
 	procLogonUserW              = modadvapi32.NewProc("LogonUserW")
+	procImpersonateSelf         = modadvapi32.NewProc("ImpersonateSelf")
 	procImpersonateLoggedOnUser = modadvapi32.NewProc("ImpersonateLoggedOnUser")
 	procRevertToSelf            = modadvapi32.NewProc("RevertToSelf")
 	procLookupAccountNameW      = modadvapi32.NewProc("LookupAccountNameW")
@@ -129,6 +130,23 @@ func LogonUser(
 	return
 }
 
+func ImpersonateSelf(impersonationLevel int) (err error) {
+	r1, _, e1 := syscall.Syscall(
+		procImpersonateSelf.Addr(),
+		1,
+		uintptr(impersonationLevel),
+		0, 0,
+	)
+	if r1 == 0 {
+		if e1 != 0 {
+			err = e1
+		} else {
+			err = syscall.EINVAL
+		}
+	}
+	return
+}
+
 func ImpersonateLoggedOnUser(
 	token syscall.Token,
 ) (err error) {