windows：shellcode 遠程線程hook/注入(四)

時間 2020-08-01

標籤 windows shellcode 遠程線程 hook 注入欄目 Windows 简体版

原文原文鏈接

　　http://www.javashuo.com/article/p-eivdhekc-nd.html 這裏介紹了利用回調函數執行shellcode的基本原理；這裏介紹另一種利用回調執行shellcode的方法：kernelcallbacktable；從字面意思看，kernelcallbacktable應該有以下幾個特色：html

首先是個table，table裏面裝滿了各個回調函數的入口；
其次：既然是kernelcallback，應該是被內核回調的，那麼內核在何時纔會回調這些函數了？衆說周知，windows操做系統的基石就是無數個展示在用戶界面的窗口（因此該操做系統才得名windows的嘛），窗口之間是須要互相通訊的，窗口和系統其餘模塊之間也是要互相通訊的， table裏的這些函數一般用於窗口響應各類不一樣類型的消息。例如，A窗口給B窗口發送WM_COPYDATA消息，B窗口就會執行_fnCOPYDATA函數（shellcode注入關鍵點就在這了：在目標進程寫入shellcode，而後讓_fnCOPYDATA指向shellcode的入口）；而當一個鍵盤消息來了，收到消息的窗口就會執行__ClientImmProcessKey；
kernelcallbacktable在哪了？既然目標進程選explorer，就從這裏開始逐個查看

（1）先看看explorer的各類數據，發現peb在008e1000這裏；git

kd> !process 0 0 explorer.exe
PROCESS ffff9006c6645080
SessionId: 1 Cid: 09cc Peb: 008e1000 ParentCid: 09b4
DirBase: 48555000 ObjectTable: ffffb789d5512040 HandleCount: 3177.
Image: explorer.exegithub

（2）繼續查看PEB的內容：在偏移0x58處找到exlporer進程的內核回調錶：shell

kd> dt _PEB 008e1000
nt!_PEB
+0x000 InheritedAddressSpace : 0 ''
+0x001 ReadImageFileExecOptions : 0 ''
+0x002 BeingDebugged : 0 ''
+0x003 BitField : 0x4 ''
................................................
+0x054 Padding1 : [4] ""
+0x058 KernelCallbackTable : 0x00007ffa`ef0e31e0 Voidwindows

（3）繼續查看這個表的內容：根據上面回調函數表的地址繼續查表內函數地址，以下：wordpress

kd> dps 00007ffa`ef0e31e0
00007ffa`ef0e31e0 00007ffa`ef07e3e0
00007ffa`ef0e31e8 00007ffa`ef0da990
00007ffa`ef0e31f0 00007ffa`ef081990
00007ffa`ef0e31f8 00007ffa`ef086a90
00007ffa`ef0e3200 00007ffa`ef0860b0
00007ffa`ef0e3208 00007ffa`ef0daf00
00007ffa`ef0e3210 00007ffa`ef087450
00007ffa`ef0e3218 00007ffa`ef0dad20
00007ffa`ef0e3220 00007ffa`ef0db1b0
00007ffa`ef0e3228 00007ffa`ef0dadd0
00007ffa`ef0e3230 00007ffa`ef083e40
00007ffa`ef0e3238 00007ffa`ef0dae20
00007ffa`ef0e3240 00007ffa`ef088b30
00007ffa`ef0e3248 00007ffa`ef0db350
00007ffa`ef0e3250 00007ffa`ef0db350
00007ffa`ef0e3258 00007ffa`ef08eb50函數

　　（4）查看第一個函數，也就是_fnCOPYDATA代碼以下：
kd> u 00007ffa`ef07e3e0
00007ffa`ef07e3e0 4883ec58 sub rsp,58h
00007ffa`ef07e3e4 33c0 xor eax,eax
00007ffa`ef07e3e6 4c8bd1 mov r10,rcx
00007ffa`ef07e3e9 89442438 mov dword ptr [rsp+38h],eax
00007ffa`ef07e3ed 4889442440 mov qword ptr [rsp+40h],rax
00007ffa`ef07e3f2 394108 cmp dword ptr [rcx+8],eax
00007ffa`ef07e3f5 740b je 00007ffa`ef07e402
00007ffa`ef07e3f7 48394120 cmp qword ptr [rcx+20h],raxspa

（5）只要把這個函數的內容換成咱們本身的shellcode就行，代碼下面會貼出來，這裏先下個斷點：操作系統

kd> bp 00007ffa`ef07e3e0code

（6）執行代碼，成功斷了下來：

kd> g
Breakpoint 0 hit
0033:00007ffa`ef07e3e0 4883ec58 sub rsp,58h
kd> k
# Child-SP RetAddr Call Site
00 00000000`056ff398 00007ff8`bbbc3b14 0x00007ffa`ef07e3e0
01 00000000`056ff3a0 00000000`00000000 0x00007ff8`bbbc3b14

F5放過去繼續執行，成功彈出了記事本：

　（7）KernelCallBackTable以下，全是內核回調函數：

typedef struct _KERNELCALLBACKTABLE_T {
    ULONG_PTR __fnCOPYDATA;
    ULONG_PTR __fnCOPYGLOBALDATA;
    ULONG_PTR __fnDWORD;
    ULONG_PTR __fnNCDESTROY;
    ULONG_PTR __fnDWORDOPTINLPMSG;
    ULONG_PTR __fnINOUTDRAG;
    ULONG_PTR __fnGETTEXTLENGTHS;
    ULONG_PTR __fnINCNTOUTSTRING;
    ULONG_PTR __fnPOUTLPINT;
    ULONG_PTR __fnINLPCOMPAREITEMSTRUCT;
    ULONG_PTR __fnINLPCREATESTRUCT;
    ULONG_PTR __fnINLPDELETEITEMSTRUCT;
    ULONG_PTR __fnINLPDRAWITEMSTRUCT;
    ULONG_PTR __fnPOPTINLPUINT;
    ULONG_PTR __fnPOPTINLPUINT2;
    ULONG_PTR __fnINLPMDICREATESTRUCT;
    ULONG_PTR __fnINOUTLPMEASUREITEMSTRUCT;
    ULONG_PTR __fnINLPWINDOWPOS;
    ULONG_PTR __fnINOUTLPPOINT5;
    ULONG_PTR __fnINOUTLPSCROLLINFO;
    ULONG_PTR __fnINOUTLPRECT;
    ULONG_PTR __fnINOUTNCCALCSIZE;
    ULONG_PTR __fnINOUTLPPOINT5_;
    ULONG_PTR __fnINPAINTCLIPBRD;
    ULONG_PTR __fnINSIZECLIPBRD;
    ULONG_PTR __fnINDESTROYCLIPBRD;
    ULONG_PTR __fnINSTRING;
    ULONG_PTR __fnINSTRINGNULL;
    ULONG_PTR __fnINDEVICECHANGE;
    ULONG_PTR __fnPOWERBROADCAST;
    ULONG_PTR __fnINLPUAHDRAWMENU;
    ULONG_PTR __fnOPTOUTLPDWORDOPTOUTLPDWORD;
    ULONG_PTR __fnOPTOUTLPDWORDOPTOUTLPDWORD_;
    ULONG_PTR __fnOUTDWORDINDWORD;
    ULONG_PTR __fnOUTLPRECT;
    ULONG_PTR __fnOUTSTRING;
    ULONG_PTR __fnPOPTINLPUINT3;
    ULONG_PTR __fnPOUTLPINT2;
    ULONG_PTR __fnSENTDDEMSG;
    ULONG_PTR __fnINOUTSTYLECHANGE;
    ULONG_PTR __fnHkINDWORD;
    ULONG_PTR __fnHkINLPCBTACTIVATESTRUCT;
    ULONG_PTR __fnHkINLPCBTCREATESTRUCT;
    ULONG_PTR __fnHkINLPDEBUGHOOKSTRUCT;
    ULONG_PTR __fnHkINLPMOUSEHOOKSTRUCTEX;
    ULONG_PTR __fnHkINLPKBDLLHOOKSTRUCT;
    ULONG_PTR __fnHkINLPMSLLHOOKSTRUCT;
    ULONG_PTR __fnHkINLPMSG;
    ULONG_PTR __fnHkINLPRECT;
    ULONG_PTR __fnHkOPTINLPEVENTMSG;
    ULONG_PTR __xxxClientCallDelegateThread;
    ULONG_PTR __ClientCallDummyCallback;
    ULONG_PTR __fnKEYBOARDCORRECTIONCALLOUT;
    ULONG_PTR __fnOUTLPCOMBOBOXINFO;
    ULONG_PTR __fnINLPCOMPAREITEMSTRUCT2;
    ULONG_PTR __xxxClientCallDevCallbackCapture;
    ULONG_PTR __xxxClientCallDitThread;
    ULONG_PTR __xxxClientEnableMMCSS;
    ULONG_PTR __xxxClientUpdateDpi;
    ULONG_PTR __xxxClientExpandStringW;
    ULONG_PTR __ClientCopyDDEIn1;
    ULONG_PTR __ClientCopyDDEIn2;
    ULONG_PTR __ClientCopyDDEOut1;
    ULONG_PTR __ClientCopyDDEOut2;
    ULONG_PTR __ClientCopyImage;
    ULONG_PTR __ClientEventCallback;
    ULONG_PTR __ClientFindMnemChar;
    ULONG_PTR __ClientFreeDDEHandle;
    ULONG_PTR __ClientFreeLibrary;
    ULONG_PTR __ClientGetCharsetInfo;
    ULONG_PTR __ClientGetDDEFlags;
    ULONG_PTR __ClientGetDDEHookData;
    ULONG_PTR __ClientGetListboxString;
    ULONG_PTR __ClientGetMessageMPH;
    ULONG_PTR __ClientLoadImage;
    ULONG_PTR __ClientLoadLibrary;
    ULONG_PTR __ClientLoadMenu;
    ULONG_PTR __ClientLoadLocalT1Fonts;
    ULONG_PTR __ClientPSMTextOut;
    ULONG_PTR __ClientLpkDrawTextEx;
    ULONG_PTR __ClientExtTextOutW;
    ULONG_PTR __ClientGetTextExtentPointW;
    ULONG_PTR __ClientCharToWchar;
    ULONG_PTR __ClientAddFontResourceW;
    ULONG_PTR __ClientThreadSetup;
    ULONG_PTR __ClientDeliverUserApc;
    ULONG_PTR __ClientNoMemoryPopup;
    ULONG_PTR __ClientMonitorEnumProc;
    ULONG_PTR __ClientCallWinEventProc;
    ULONG_PTR __ClientWaitMessageExMPH;
    ULONG_PTR __ClientWOWGetProcModule;
    ULONG_PTR __ClientWOWTask16SchedNotify;
    ULONG_PTR __ClientImmLoadLayout;
    ULONG_PTR __ClientImmProcessKey;
    ULONG_PTR __fnIMECONTROL;
    ULONG_PTR __fnINWPARAMDBCSCHAR;
    ULONG_PTR __fnGETTEXTLENGTHS2;
    ULONG_PTR __fnINLPKDRAWSWITCHWND;
    ULONG_PTR __ClientLoadStringW;
    ULONG_PTR __ClientLoadOLE;
    ULONG_PTR __ClientRegisterDragDrop;
    ULONG_PTR __ClientRevokeDragDrop;
    ULONG_PTR __fnINOUTMENUGETOBJECT;
    ULONG_PTR __ClientPrinterThunk;
    ULONG_PTR __fnOUTLPCOMBOBOXINFO2;
    ULONG_PTR __fnOUTLPSCROLLBARINFO;
    ULONG_PTR __fnINLPUAHDRAWMENU2;
    ULONG_PTR __fnINLPUAHDRAWMENUITEM;
    ULONG_PTR __fnINLPUAHDRAWMENU3;
    ULONG_PTR __fnINOUTLPUAHMEASUREMENUITEM;
    ULONG_PTR __fnINLPUAHDRAWMENU4;
    ULONG_PTR __fnOUTLPTITLEBARINFOEX;
    ULONG_PTR __fnTOUCH;
    ULONG_PTR __fnGESTURE;
    ULONG_PTR __fnPOPTINLPUINT4;
    ULONG_PTR __fnPOPTINLPUINT5;
    ULONG_PTR __xxxClientCallDefaultInputHandler;
    ULONG_PTR __fnEMPTY;
    ULONG_PTR __ClientRimDevCallback;
    ULONG_PTR __xxxClientCallMinTouchHitTestingCallback;
    ULONG_PTR __ClientCallLocalMouseHooks;
    ULONG_PTR __xxxClientBroadcastThemeChange;
    ULONG_PTR __xxxClientCallDevCallbackSimple;
    ULONG_PTR __xxxClientAllocWindowClassExtraBytes;
    ULONG_PTR __xxxClientFreeWindowClassExtraBytes;
    ULONG_PTR __fnGETWINDOWDATA;
    ULONG_PTR __fnINOUTSTYLECHANGE2;
    ULONG_PTR __fnHkINLPMOUSEHOOKSTRUCTEX2;
} KERNELCALLBACKTABLE;

參考：https://zhuanlan.zhihu.com/p/40368047

https://modexp.wordpress.com/2018/07/15/process-injection-sharing-payload/ 內核回調函數機制詳解

https://github.com/odzhan/injection/tree/master/kct 代碼和shellcode（注意要編譯成64位的，不然沒法執行shellcode）