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ProtectProcess.c
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ProtectProcess.c
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/*
*******************************************************************************
*= = 文件名称：ProtectProcess.h
*= = 文件描述：关于ProtectProcess的头文件
*= = 作 者：indigo
*= = 编写时间：2016-07-09 19:18:00
*******************************************************************************
*/
#include "ProtectProcess.h"
BOOLEAN unProtectProcessById(ULONG uPid, ULONG user);
//*============================================================================
//*= = 函数名称：RemoveProtect
//*= = 功能描述：去掉内存保护函数
//*= = 入口参数：NULL
//*= = 出口参数：VOID
//*============================================================================
VOID RemoveProtect()
{
_asm
{
cli; //关中断
mov eax, cr0; //寄存器CR0包含系统的控制标志，用于控制处理器的操作模式和状态
and eax, not 10000h; //取eax的后16位
mov cr0, eax; //写回cr0寄存器
}
}
//*============================================================================
//*= = 函数名称：RemoveProtect
//*= = 功能描述：恢复内存保护函数
//*= = 入口参数：NULL
//*= = 出口参数：VOID
//*============================================================================
VOID ResumeProtect()
{
_asm
{
mov eax, cr0;
or eax, 10000h; //恢复之前and操作的结果
mov cr0, eax;
sti; //开中断
}
}
//*============================================================================
//*= = 函数名称：StrEqual
//*= = 功能描述：字符串比较函数
//*= = 入口参数：PWSTR,PWSTR
//*= = 出口参数：BOOLEAN
//*============================================================================
BOOLEAN StrEqual(PWSTR wstr1, PWSTR wstr2)
{
PWCHAR PWC1, PWC2;
PWC1 = wstr1;
PWC2 = wstr2;
while (MmIsAddressValid((PVOID)PWC1) && MmIsAddressValid((PVOID)PWC2)) {
if (*(PWC1) == 0 && *(PWC2) == 0)
return TRUE;
if (*(PWC1) != *(PWC2))
return FALSE;
PWC1++;
PWC2++;
}
return FALSE;
}
//*============================================================================
//*= = 函数名称：StrEqual
//*= = 功能描述：插入链表函数
//*= = 入口参数：PLISTNODE,PLISTNODE
//*= = 出口参数：VOID
//*============================================================================
VOID InsertNode(PLISTNODE *head, PLISTNODE data)//data表示新节点的地址
{
PLISTNODE p;
if (*head == NULL){
*head = data;
}
else{
p = *head;
while (p->next != NULL){
p = p->next;
}
p->next = data;
}
}
//*============================================================================
//*= = 函数名称：RemoveNodeByUser
//*= = 功能描述：按用户删除链表节点函数
//*= = 入口参数：PLISTNODE,ULONG
//*= = 出口参数：VOID
//*============================================================================
VOID RemoveNodeByUser(PLISTNODE *head, ULONG user)
{
PLISTNODE p, t;
p = *head;
if (p == NULL){
return;
}
//头结点
if (StrEqual((PWSTR)p->data, (PWSTR)user)){
*head = (*head)->next;
ExFreePool((PVOID)p->data);
ExFreePool((PVOID)p);
}
else{
//非头结点
while (p->next != NULL){
if (StrEqual((PWSTR)p->next->data, (PWSTR)user))
{
t = p->next->next;
ExFreePool((PVOID)p->next->data);
ExFreePool((PVOID)p->next);
p->next = t;
break;
}
p = p->next;
}
}
}
//*============================================================================
//*= = 函数名称：RemoveNode
//*= = 功能描述：删除链表节点函数
//*= = 入口参数：PLISTNODE,ULONG,ULONG
//*= = 出口参数：VOID
//*============================================================================
VOID RemoveNode(PLISTNODE *head, ULONG ProcessId, ULONG user)
{
PLISTNODE p, a, b;
PPROTECTINFO pt;
ExAcquireFastMutex(&mux_protect);
p = *head;
if (p == NULL){ //链表为空
ExReleaseFastMutex(&mux_protect);
return;
}
if (*(PULONG)(p->data) == ProcessId){ //链表头符合
pt = (PPROTECTINFO)p->data;
a = pt->AllowedUser; //授权用户
//删除所有节点
if (user == 0){
while (a){
b = a->next;
ExFreePool((PVOID)a->data); //释放内存
ExFreePool((PVOID)a);
a = b;
}
*head = (*head)->next;
ExFreePool((PVOID)p->data);
ExFreePool((PVOID)p);
}
else{
RemoveNodeByUser(&pt->AllowedUser, user);
}
}
else{ //其他位置符合
while (p->next != NULL){
if (*(PULONG)p->next->data == ProcessId){
if (user == 0){
pt = (PPROTECTINFO)p->next->data;
a = pt->AllowedUser;
while (a){
b = a->next;
ExFreePool((PVOID)a->data);
ExFreePool((PVOID)a);
a = b;
}
ExFreePool((PVOID)p->next->data);
a = p->next->next;
ExFreePool((PVOID)p->next);
p->next = a;
}
else{
RemoveNodeByUser(&((PPROTECTINFO)p->next->data)->AllowedUser, user);
}
break;
}
p = p->next;
}
}
ExReleaseFastMutex(&mux_protect);
}
//*============================================================================
//*= = 函数名称：IsInProtectList
//*= = 功能描述：遍历链表函数
//*= = 入口参数：ULONG,ULONG,BOOLEAN
//*= = 出口参数：PLISTNODE
//*============================================================================
PLISTNODE IsInProtectList(ULONG ProcessId, ULONG user, BOOLEAN b_ignoreuser)
{
PLISTNODE p, t;
ExAcquireFastMutex(&mux_protect);//申请互斥变量
p = ProtectList;
while (p){
if (*(PULONG)(p->data) == ProcessId){
if (user == 0 || b_ignoreuser){//未设置或者忽视授权用户
ExReleaseFastMutex(&mux_protect);
return p;
}
t = ((PPROTECTINFO)(p->data))->AllowedUser;
while (t){
if (StrEqual((PWSTR)(t->data), (PWSTR)user)){
ExReleaseFastMutex(&mux_protect);
return p;
}
t = t->next;
}
ExReleaseFastMutex(&mux_protect);
return NULL;
}
p = p->next;
}
ExReleaseFastMutex(&mux_protect);
return NULL;
}
//*============================================================================
//*= = 函数名称：GetListCount
//*= = 功能描述：获取所有节点信息函数
//*= = 入口参数：PLISTNODE,PULONG
//*= = 出口参数：ULONG
//*============================================================================
ULONG GetListCount(IN PLISTNODE list, OUT PULONG PidTable)
{
ULONG count = 0;
while (list){
PidTable[count] = *(PULONG)list->data;
count++;
list = list->next;
}
return count;
}
//*============================================================================
//*= = 函数名称：FreeList
//*= = 功能描述：释放所有节点函数
//*= = 入口参数：NULL
//*= = 出口参数：VOID
//*============================================================================
VOID FreeList()
{
PULONG PidTable;
ULONG count, i;
PidTable = (PULONG)ExAllocatePool(NonPagedPool, sizeof(ULONG)*MAX_PROCESS);
memset((PVOID)PidTable, 0, sizeof(ULONG)*MAX_PROCESS);
ExAcquireFastMutex(&mux_protect);
count = GetListCount(ProtectList, PidTable);
ExReleaseFastMutex(&mux_protect);
for (i = 0; i < count; i++)
{
unProtectProcessById(PidTable[i], 0);
}
ExFreePool(PidTable);
}
//*============================================================================
//*= = 函数名称：GetFuncAddr
//*= = 功能描述：获取指定函数内存地址函数
//*= = 入口参数：PWSTR
//*= = 出口参数：ULONG
//*============================================================================
ULONG GetFuncAddr(PWSTR pwszFuncName)
{
UNICODE_STRING uniFuncName;
RtlInitUnicodeString(&uniFuncName, pwszFuncName);
return (ULONG)MmGetSystemRoutineAddress(&uniFuncName);
}
//*============================================================================
//*= = 函数名称：GetPspTerminateThreadByPointerAddr
//*= = 功能描述：获取PspTerminateSystemThread函数地址
//*= = 入口参数：NULL
//*= = 出口参数：ULONG
//*============================================================================
ULONG GetPspTerminateThreadByPointerAddr()
{
ULONG FunAddress = 0, i = 0;
//先获取PsTerminateSystemThread这个函数地址.他调用了PspTerminateThreadByPointer
//这个函数本身并没有被导出,所以通过搜索特征.定位call 然后将call的地址进行运算即可
FunAddress = GetFuncAddr(L"PsTerminateSystemThread");
//如果获取失败
if (FunAddress == 0){
return 0L;
}
//目标地址=下条指令的地址+机器码E8后面所跟的32位数
for (i = FunAddress; i < FunAddress + 0xff; i++){
if (*(PUCHAR)i == 0x50 && *(PUCHAR)(i + 1) == 0xe8){//特征码 0x50 0xe8——push eax call
return (ULONG)(*(PULONG)(i + 2) + i + 2 + 4);
}
}
return 0L;
}
//*============================================================================
//*= = 函数名称：GetNtOpenProcessAddr
//*= = 功能描述：获取NtOpenProcess函数地址
//*= = 入口参数：NULL
//*= = 出口参数：ULONG
//*============================================================================
ULONG GetNtOpenProcessAddr()
{
ULONG uZwFuncAddr = 0, uIndex = 0;
uZwFuncAddr = GetFuncAddr(L"ZwOpenProcess");
if (uZwFuncAddr == 0){
return 0L;
}
uIndex = *(PULONG)(uZwFuncAddr + 1);
return KeServiceDescriptorTable.ServiceTableBase[uIndex];
}
//*============================================================================
//*= = 函数名称：GetNtTerminateProcessAddr
//*= = 功能描述：获取NtTerminateProcess函数地址
//*= = 入口参数：NULL
//*= = 出口参数：ULONG
//*============================================================================
ULONG GetNtTerminateProcessAddr()
{
ULONG uZwFuncAddr = 0, uIndex = 0;
uZwFuncAddr = GetFuncAddr(L"ZwTerminateProcess");
if (uZwFuncAddr == 0){
return 0L;
}
uIndex = *(PULONG)(uZwFuncAddr + 1);
return KeServiceDescriptorTable.ServiceTableBase[uIndex];
}
//*============================================================================
//*= = 函数名称：GetPsGetNextProcessThreadAddr
//*= = 功能描述：获取PsGetNextProcessThread函数地址
//*= = 入口参数：NULL
//*= = 出口参数：ULONG
//*============================================================================
ULONG GetPsGetNextProcessThreadAddr()
{
ULONG uFuncAddr = 0, i = 0;
uFuncAddr = GetFuncAddr(L"PsResumeProcess");
if (uFuncAddr == 0){
return 0L;
}
for (i = uFuncAddr; i < uFuncAddr + 0xff; i++){
if (*(PUCHAR)i == 0x08 && *(PUCHAR)(i + 1) == 0xe8){//特征码0x08 0xe8
return (ULONG)(*(PULONG)(i + 2) + 5 + i + 1);
}
}
return 0L;
}
//*============================================================================
//*= = 函数名称：GetProcessOwner
//*= = 功能描述：获取进程的所属用户 (local unique)
//*= = 入口参数：PEPROCESS
//*= = 出口参数：ULONG
//*============================================================================
ULONG GetProcessOwner(PEPROCESS Process)
{
NTSTATUS status;
PACCESS_TOKEN token;
LUID luid;
PSECURITY_USER_DATA secdata;
ULONG user;
token = PsReferencePrimaryToken(Process);
status = SeQueryAuthenticationIdToken(token, &luid);
if (!NT_SUCCESS(status)){
PsDereferencePrimaryToken(token);
return 0L;
}
PsDereferencePrimaryToken(token);
//根据用户的luid取用户名
status = GetSecurityUserInfo(&luid, UNDERSTANDS_LONG_NAMES, &secdata);
if (!NT_SUCCESS(status)){
return 0L;
}
//用完后需要自己释放
user = (ULONG)ExAllocatePool(NonPagedPool, secdata->UserName.Length + sizeof(WCHAR));
if (!user){
return 0L;
}
memset((PVOID)user, 0, secdata->UserName.Length + sizeof(WCHAR));
memcpy((PVOID)user, (PVOID)secdata->UserName.Buffer, secdata->UserName.Length);
return user;
}
//*============================================================================
//*= = 函数名称：GetCsrssEprocess
//*= = 功能描述：获取csrss进程句柄
//*= = 入口参数：NULL
//*= = 出口参数：PEPROCESS
//*============================================================================
PEPROCESS GetCsrssEprocess()//用于维持Windows的控制
{
PEPROCESS Process;
PLIST_ENTRY List, p;
PSTR Name;
Process = PsGetCurrentProcess();
List = (PLIST_ENTRY)((ULONG)Process + g_ProcessListOffset);
p = List;
do
{
Name = (PSTR)((ULONG)p + g_ProcessNameOffset - g_ProcessListOffset);
if (strstr(Name, "csrss.exe"))//判断是否是csrss进程
return (PEPROCESS)((ULONG)p - g_ProcessListOffset);
p = p->Blink;//指向前一个元素
} while (p != List);
return NULL;
}
//*============================================================================
//*= = 函数名称：OriginPspTerminateThreadByPointer
//*= = 功能描述：跳转回原来的处理函数PspTerminateThreadByPointer
//*= = 入口参数：PETHREAD,NTSTATUS,BOOLEAN
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS __declspec(naked) OriginPspTerminateThreadByPointer(
IN PETHREAD Thread,
IN NTSTATUS ExitStatus,
IN BOOLEAN DirectTerminate
)
{
_asm
{
mov edi, edi;
push ebp;
mov ebp, esp;
mov eax, [g_PspTerminateThreadByPointerAddr];
add eax, 5;
jmp eax;
}
}
//*============================================================================
//*= = 函数名称：OriginNtOpenProcess
//*= = 功能描述：跳转回原来的处理函数NtOpenProcess
//*= = 入口参数：PHANDLE,ACCESS_MASK,POBJECT_ATTRIBUTES,PCLIENT_ID
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS __declspec(naked) OriginNtOpenProcess(
__out PHANDLE ProcessHandle,
__in ACCESS_MASK DesiredAccess,
__in POBJECT_ATTRIBUTES ObjectAttributes,
__in_opt PCLIENT_ID ClientId
)
{
_asm
{
mov edi, edi;
push ebp;
mov ebp, esp;
mov eax, [g_NtOpenProcessAddr];
add eax, 5;
jmp eax;
}
}
//*============================================================================
//*= = 函数名称：OriginNtTerminateProcess
//*= = 功能描述：跳转回原来的NtTerminateProcess函数
//*= = 入口参数：HANDLE,NTSTATUS
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS __declspec(naked) OriginNtTerminateProcess(
__in_opt HANDLE ProcessHandle,
__in NTSTATUS ExitStatus
)
{
_asm
{
mov edi, edi;
push ebp;
mov ebp, esp;
mov eax, [g_NtTerminateProcessAddr];
add eax, 5;
jmp eax;
}
}
//*============================================================================
//*= = 函数名称：HookPspTerminateThreadByPointer
//*= = 功能描述：Hook的PspTerminateThreadByPointer函数
//*= = 入口参数：PETHREAD,NTSTATUS,BOOLEAN
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS HookPspTerminateThreadByPointer(
IN PETHREAD Thread,
IN NTSTATUS ExitStatus,
IN BOOLEAN DirectTerminate
)
{
PEPROCESS Killer, Prey;
ULONG KillerId, PreyId, user;
Killer = PsGetCurrentProcess();
Prey = IoThreadToProcess(Thread);
KillerId = *(PULONG)((ULONG)Killer + g_ProcessIdOffset);
PreyId = *(PULONG)((ULONG)Prey + g_ProcessIdOffset);
if (KillerId != PreyId)
{
if (IsInProtectList(PreyId, 0, TRUE))//查看保护列表
{
user = GetProcessOwner(Killer);
if (!IsInProtectList(PreyId, user, FALSE))//查看保护列表
{
if (user)
ExFreePool((PVOID)user);
KdPrint(("[*]HookPspTerminateThreadByPointer:stop %s killing %s", (PUCHAR)((ULONG)Killer + g_ProcessNameOffset), (PUCHAR)((ULONG)Prey + g_ProcessNameOffset)));
return STATUS_ACCESS_DENIED;
}
if (user)
ExFreePool((PVOID)user);
}
}
return OriginPspTerminateThreadByPointer(Thread, ExitStatus, DirectTerminate);
}
//*============================================================================
//*= = 函数名称：HookNtOpenProcess
//*= = 功能描述：Hook的NtOpenProcess函数
//*= = 入口参数：PHANDLE,ACCESS_MASK,POBJECT_ATTRIBUTES,PCLIENT_ID
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS HookNtOpenProcess(
__out PHANDLE ProcessHandle,
__in ACCESS_MASK DesiredAccess,
__in POBJECT_ATTRIBUTES ObjectAttributes,
__in_opt PCLIENT_ID ClientId
)
{
PEPROCESS Prey, Killer;
NTSTATUS status = STATUS_UNSUCCESSFUL;
ULONG KillerId, PreyId, user;
status = PsLookupProcessByProcessId(ClientId->UniqueProcess, &Prey);
if (NT_SUCCESS(status))
{
ObDereferenceObject(Prey);
Killer = PsGetCurrentProcess();
KillerId = *(PULONG)((ULONG)Killer + g_ProcessIdOffset);
PreyId = *(PULONG)((ULONG)Prey + g_ProcessIdOffset);
if (KillerId != PreyId)
{
if (IsInProtectList(PreyId, 0, TRUE))
{
user = GetProcessOwner(Killer);
KdPrint(("%ws", (PWSTR)user));
if (!IsInProtectList(PreyId, user, FALSE))
{
DesiredAccess &= ~PROCESS_TERMINATE;
DesiredAccess &= ~PROCESS_CREATE_THREAD;
DesiredAccess &= ~PROCESS_SET_SESSIONID;
DesiredAccess &= ~PROCESS_VM_OPERATION;
DesiredAccess &= ~PROCESS_VM_READ;
DesiredAccess &= ~PROCESS_VM_WRITE;
KdPrint(("[*]HookNtOpenProcess: limit %s's using of %s", (PUCHAR)((ULONG)Killer + g_ProcessNameOffset), (PUCHAR)((ULONG)Prey + g_ProcessNameOffset)));
}
if (user)
ExFreePool((PVOID)user);
}
}
}
return OriginNtOpenProcess(ProcessHandle, DesiredAccess, ObjectAttributes, ClientId);//处理之后传回系统原函数继续处理
}
//*============================================================================
//*= = 函数名称：HookNtTerminateProcess
//*= = 功能描述：Hook的NtTerminateProcess函数
//*= = 入口参数：HANDLE,NTSTATUS
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS HookNtTerminateProcess(
__in_opt HANDLE ProcessHandle,
__in NTSTATUS ExitStatus
)
{
PEPROCESS Killer, Prey;
NTSTATUS status = STATUS_UNSUCCESSFUL;
GETPREVIOUSMODE KeGetPreviousMode;
ULONG KillerId, PreyId, user;
KeGetPreviousMode = (GETPREVIOUSMODE)GetFuncAddr(L"KeGetPreviousMode");
status = ObReferenceObjectByHandle(ProcessHandle, PROCESS_TERMINATE, *PsProcessType, KeGetPreviousMode(), &Prey, NULL);
if (NT_SUCCESS(status))
{
ObDereferenceObject(Prey);
Killer = PsGetCurrentProcess();
KillerId = *(PULONG)((ULONG)Killer + g_ProcessIdOffset);
PreyId = *(PULONG)((ULONG)Prey + g_ProcessIdOffset);
if (KillerId != PreyId)
{
if (IsInProtectList(PreyId, 0, TRUE))
{
user = GetProcessOwner(Killer);
if (!IsInProtectList(PreyId, user, FALSE))
{
if (user)
ExFreePool((PVOID)user);
KdPrint(("[*]HookNtTerminateProcess:stop %s killing %s", (PUCHAR)((ULONG)Killer + g_ProcessNameOffset), (PUCHAR)((ULONG)Prey + g_ProcessNameOffset)));
return STATUS_ACCESS_DENIED;
}
if (user)
ExFreePool((PVOID)user);
}
}
}
return OriginNtTerminateProcess(ProcessHandle, ExitStatus);
}
//*============================================================================
//*= = 函数名称：UsePsGetNextProcessThread
//*= = 功能描述：调用PsGetNextProcessThread函数获取下一个线程的句柄
//*= = 入口参数：PEPROCESS，PETHREAD
//*= = 出口参数：PETHREAD
//*============================================================================
PETHREAD UsePsGetNextProcessThread(
IN PEPROCESS Process,
IN PETHREAD Thread
)
{
PETHREAD nextThread = NULL;
_asm
{
mov eax, Process;
push Thread;
call PsGetNextProcessThread;
mov nextThread, eax;
}
return nextThread;
}
//*============================================================================
//*= = 函数名称：HookSystemRoutine
//*= = 功能描述：安装钩子
//*= = 入口参数：ULONG，ULONG
//*= = 出口参数：VOID
//*============================================================================
VOID HookSystemRoutine(ULONG uOldAddr, ULONG uNewAddr)
{
UCHAR jmpcode[5];
if (!(MmIsAddressValid((PVOID)uOldAddr) && MmIsAddressValid((PVOID)uNewAddr)))
{
KdPrint(("[*]Invalid address!"));
return;
}
jmpcode[0] = 0xe9;
*(PULONG)(jmpcode + 1) = uNewAddr - uOldAddr - 5;
RemoveProtect();
memcpy((PVOID)uOldAddr, (PVOID)jmpcode, 5);
ResumeProtect();
}
//*============================================================================
//*= = 函数名称：UnhookSystemRoutine
//*= = 功能描述：卸载钩子
//*= = 入口参数：ULONG，PCHAR
//*= = 出口参数：VOID
//*============================================================================
VOID UnhookSystemRoutine(ULONG uOldAddr, PCHAR pOriCode)
{
if (!MmIsAddressValid((PVOID)uOldAddr))
{
KdPrint(("[*]Invalid address"));
return;
}
RemoveProtect();
memcpy((PVOID)uOldAddr, (PVOID)pOriCode, 5);
ResumeProtect();
}
//*============================================================================
//*= = 函数名称：ProtectProcessById
//*= = 功能描述：添加进程到保护链表
//*= = 入口参数：ULONG，ULONG
//*= = 出口参数：BOOLEAN
//*============================================================================
BOOLEAN ProtectProcessById(ULONG uPid, ULONG user)
{
PLISTNODE node, p;
PPROTECTINFO protectinfo;
if (IsInProtectList(uPid, user, FALSE))
{
return FALSE;
}
else if ((p = IsInProtectList(uPid, user, TRUE)) != NULL)
{
protectinfo = (PPROTECTINFO)p->data;
node = (PLISTNODE)ExAllocatePool(NonPagedPool, sizeof(LISTNODE));
node->next = NULL;
node->data = user;
ExAcquireFastMutex(&mux_protect);
InsertNode(&protectinfo->AllowedUser, node);
ExReleaseFastMutex(&mux_protect);
}
else
{
node = (PLISTNODE)ExAllocatePool(NonPagedPool, sizeof(LISTNODE));
protectinfo = (PPROTECTINFO)ExAllocatePool(NonPagedPool, sizeof(PROTECTINFO));
node->next = NULL;
node->data = (ULONG)protectinfo;
protectinfo->ProcessId = uPid;
protectinfo->AllowedUser = NULL;
if (user != 0)
{
p = (PLISTNODE)ExAllocatePool(NonPagedPool, sizeof(LISTNODE));
p->next = NULL;
p->data = user;
InsertNode(&protectinfo->AllowedUser, p);
protectinfo->AllowedUser = p;
}
ExAcquireFastMutex(&mux_protect);
InsertNode(&ProtectList, node);
ExReleaseFastMutex(&mux_protect);
}
return TRUE;
}
//*============================================================================
//*= = 函数名称：unProtectProcessById
//*= = 功能描述：在保护链表中去掉进程
//*= = 入口参数：ULONG，ULONG
//*= = 出口参数：ULONG
//*============================================================================
BOOLEAN unProtectProcessById(ULONG uPid, ULONG user)
{
//判断进程是否存在于保护链表中
if (IsInProtectList(uPid, user, FALSE) == NULL){
return FALSE;
}
RemoveNode(&ProtectList, uPid, user);
return TRUE;
}
//*============================================================================
//*= = 函数名称：KillProcessById
//*= = 功能描述：通过ID杀死进程
//*= = 入口参数：ULONG
//*= = 出口参数：BOOLEAN
//*============================================================================
BOOLEAN KillProcessById(ULONG uPid)
{
PEPROCESS Process;
PETHREAD Thread;
NTSTATUS status;
//判断PsGetNextProcessThread函数地址是否可用
if (!MmIsAddressValid((PVOID)(ULONG)PsGetNextProcessThread))
{
KdPrint(("[*]PsGetNextProcessThread address is invalid."));
return FALSE;
}
//获取进程句柄
status = PsLookupProcessByProcessId((HANDLE)uPid, &Process);
if (!NT_SUCCESS(status))
{
KdPrint(("[*]Get process handle failed in KillProcessById function."));
return FALSE;
}
unProtectProcessById(uPid, 0);
//依次杀死进程的所有线程
RtlInterlockedSetBitsDiscardReturn((PULONG)((ULONG)Process + g_ProcessFlagsOffset), PS_PROCESS_FLAGS_PROCESS_DELETE);
for (Thread = UsePsGetNextProcessThread(Process, NULL); Thread != NULL; Thread = UsePsGetNextProcessThread(Process, Thread))
{
HookPspTerminateThreadByPointer(Thread, 0, TRUE);
}
ObDereferenceObjectDeferDelete(Process);
return TRUE;
}
//*============================================================================
//*= = 函数名称：CreateProecssCallback
//*= = 功能描述：创建进程的通知例程
//*= = 入口参数：HANDLE,HANDLE,BOOLEAN
//*= = 出口参数：VOID
//*============================================================================
VOID CreateProecssCallback(
IN HANDLE ParentId,
IN HANDLE ProcessId,
IN BOOLEAN Create
)
{
NTSTATUS status;
PPROCESSINFO ProcessInfo = (PPROCESSINFO)((ULONG)g_ShareBuf + sizeof(ULONG));
PEPROCESS Process;
UNICODE_STRING NameW;
ANSI_STRING NameA;
if (!MmIsAddressValid((PVOID)g_ShareBuf))
return;
memset((PVOID)ProcessInfo, 0, sizeof(PROCESSINFO));
if (Create){
//创建进程
*(PULONG)g_ShareBuf = TRUE;
ProcessInfo->ProcessId = (ULONG)ProcessId;
status = PsLookupProcessByProcessId(ProcessId, &Process);
if (!NT_SUCCESS(status))
{
KdPrint(("[*]Get process handle failed in Createcallback."));
}
RtlInitAnsiString(&NameA, (PCSZ)((ULONG)Process + g_ProcessNameOffset));
RtlAnsiStringToUnicodeString(&NameW, &NameA, TRUE);
ObDereferenceObject(Process);
memcpy((PVOID)ProcessInfo->Name, (PVOID)NameW.Buffer, NameW.Length);
//KdPrint(("[*]USER:%wZ", NameW));
RtlFreeUnicodeString(&NameW);
}
else{
//从保护进程和隐藏进程链表中去掉
unProtectProcessById((ULONG)ProcessId, 0);
}
}
//*============================================================================
//*= = 函数名称：Unload
//*= = 功能描述：卸载驱动
//*= = 入口参数：PDRIVER_OBJECT
//*= = 出口参数：VOID
//*============================================================================
VOID Unload(PDRIVER_OBJECT DriverObject)
{
UNICODE_STRING Win32Device;
//释放列表
FreeList();
//卸载所有钩子
UnhookSystemRoutine(g_PspTerminateThreadByPointerAddr, "\x8b\xff\x55\x8b\xec");
UnhookSystemRoutine(g_NtTerminateProcessAddr, "\x8b\xff\x55\x8b\xec");
UnhookSystemRoutine(g_NtOpenProcessAddr, "\x8b\xff\x55\x8b\xec");
//移除通知例程
PsSetCreateProcessNotifyRoutine(CreateProecssCallback, TRUE);
//释放内存
if (g_ShareBuf)
{
ExFreePool(g_ShareBuf);
}
IoUnregisterShutdownNotification(DriverObject->DeviceObject);
//移除设备
RtlInitUnicodeString(&Win32Device, SYMBOL_NAME);
IoDeleteSymbolicLink(&Win32Device);
IoDeleteDevice(DriverObject->DeviceObject);
}
//*============================================================================
//*= = 函数名称：CreateClose
//*= = 功能描述：对开启关闭Irp的派遣函数
//*= = 入口参数：PDEVICE_OBJECT,PIRP
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS CreateClose(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_SUCCESS;
}
//*============================================================================
//*= = 函数名称：DefaultHandler
//*= = 功能描述：默认派遣函数
//*= = 入口参数：PDEVICE_OBJECT,PIRP
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS DefaultHandler(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
Irp->IoStatus.Status = STATUS_NOT_SUPPORTED;
Irp->IoStatus.Information = 0;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return STATUS_NOT_SUPPORTED;
}
//*============================================================================
//*= = 函数名称：DeviceControl
//*= = 功能描述：设备控制派遣函数
//*= = 入口参数：PDEVICE_OBJECT,PIRP
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS DeviceControl(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
NTSTATUS status = STATUS_SUCCESS;
PIO_STACK_LOCATION INFO = IoGetCurrentIrpStackLocation(Irp);
ULONG ControlCode = INFO->Parameters.DeviceIoControl.IoControlCode;
PVOID inbuf = Irp->AssociatedIrp.SystemBuffer;
PVOID outbuf = MmGetSystemAddressForMdlSafe(Irp->MdlAddress, NormalPagePriority);
ULONG outlen = INFO->Parameters.DeviceIoControl.OutputBufferLength;
PPROCESSINFO p;
ULONG len, user, i;
PLISTNODE list;
PPROTECTINFO pt;
//判断控制码
switch (ControlCode)
{
case PROTECTBYPID:
p = (PPROCESSINFO)inbuf;
len = wcslen(p->Name);
user = 0;
//如果Name不为空，则复制到user中
if (len){
user = (ULONG)ExAllocatePool(NonPagedPool, (len + 1)*sizeof(WCHAR));
wcscpy((PWSTR)user, p->Name);
}
*(PULONG)outbuf = ProtectProcessById(p->ProcessId, user) ? 1 : 0;
break;
case UNPROTECTBYPID:
p = (PPROCESSINFO)inbuf;
len = wcslen(p->Name);
user = 0;
//如果Name不为空，则复制到user中
if (len){
user = (ULONG)ExAllocatePool(NonPagedPool, (len + 1)*sizeof(WCHAR));
wcscpy((PWSTR)user, p->Name);
}
*(PULONG)outbuf = unProtectProcessById(p->ProcessId, user) ? 1 : 0;
if (user){//释放内存
ExFreePool((PVOID)user);
}
break;
case KILLBYPID:
*(PULONG)outbuf = KillProcessById(*(PULONG)inbuf) ? 1 : 0;
break;
default:
break;
}
Irp->IoStatus.Status = status;
Irp->IoStatus.Information = outlen;
IoCompleteRequest(Irp, IO_NO_INCREMENT);
return status;
}
//*============================================================================
//*= = 函数名称：Shutdown
//*= = 功能描述：处理关闭命令
//*= = 入口参数：PDEVICE_OBJECT,PIRP
//*= = 出口参数：NTSTATUS
//*============================================================================
NTSTATUS Shutdown(IN PDEVICE_OBJECT DeviceObject, IN PIRP Irp)
{
PDRIVER_OBJECT DriverObject;
NTSTATUS status = STATUS_UNSUCCESSFUL;
UNICODE_STRING DriverName;
OBREFERENCEOBJECTBYNAME ObReferenceObjectByName = (OBREFERENCEOBJECTBYNAME)GetFuncAddr(L"ObReferenceObjectByName");
RtlInitUnicodeString(&DriverName, DRIVER_NAME);
if (MmIsAddressValid((PVOID)(ULONG)ObReferenceObjectByName)){