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- 2021-4-16
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- 2023-11-9
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- 3 小时
编程入门
- 龙马币
- 52
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编译环境是 VS2013+WDK8.1
测试环境 XP32
毕竟创建线程,还要等待线程执行,速度慢了很多吧,感觉别扭
通宵一晚上,查了下资料,把伪装进程弄了出来
测试还是有点效果,不过也不是很完美
必须要过掉 ZwOpenProcess ,NtReadProcessMemory,NtWriteProcessMemory这三个函数HOOK才能读写
不过总算摆脱了线程的方式,而且那三个HOOK也容易过,内心感觉爽了一下.
老样子,对内核不是太了解的我,不会WinDbg,不会双机调试
写出这些代码,基本上都是蓝屏重启千万次慢慢修改的
得出结论,学内核,windbg还是要学的,毕竟没法调试,很多东西都不好弄明白是什么原因,ring3下至少还有OD调试
源码就不打包了,就那么几行代码而已.
先贴代码,再说说遇到不解的问题
- VOID ChangeName2(ULONG pProcess1/**被伪装的进程**/, ULONG pProcess2/**要伪装的进程**/)
- {
- KAPC_STATE kapc1, kapc2;
- PUNICODE_STRING CurrentDirectory=NULL,
- DllPath=NULL,
- ImagePathName=NULL,
- CommandLine=NULL,
- ldr1_FullName=NULL,
- ldr1_BaseName=NULL,
- ldr2_FullName=NULL;
-
-
- ULONG ProcessParameters, peb, ldr, ldr1, ldr2, ldr3,x1;
-
- WCHAR CurrentDirectory2[256] = { 0 },
- DllPath2[256] = { 0 },
- ImagePathName2[256] = { 0 },
- CommandLine2[512] = { 0 },
- ldr1_FullName2[256] = { 0 },
- ldr1_BaseName2[256] = { 0 },
- ldr2_FullName2[256] = { 0 };
-
- peb = *(PULONG)(pProcess1 + 0x1b0);
- // DbgPrint("peb = %08X", peb);
- KeStackAttachProcess((PEPROCESS)pProcess1, &kapc1);
- _try
- {
-
- ProcessParameters = *(PULONG)(peb + 0x010);
- // DbgPrint("ProcessParameters = %08X", ProcessParameters);
- CurrentDirectory = (PUNICODE_STRING)(ProcessParameters + 0x24); //CurrentDirectory
- DllPath = (PUNICODE_STRING)(ProcessParameters + 0x30); //DllPath
- ImagePathName = (PUNICODE_STRING)(ProcessParameters + 0x38); //ImagePathName
- CommandLine = (PUNICODE_STRING)(ProcessParameters + 0x40); //CommandLine
- RtlCopyMemory(CurrentDirectory2, CurrentDirectory->Buffer, wcslen(CurrentDirectory->Buffer)*2);
- RtlCopyMemory(DllPath2, DllPath->Buffer, wcslen(DllPath->Buffer)*2);
- RtlCopyMemory(ImagePathName2, ImagePathName->Buffer, wcslen(ImagePathName->Buffer)*2);
- RtlCopyMemory(CommandLine2, CommandLine->Buffer, wcslen(CommandLine->Buffer)*2);
-
- //DbgPrint("CurrentDirectory2 %S %d %S %d", CurrentDirectory2, wcslen(CurrentDirectory2), CurrentDirectory->Buffer, wcslen(CurrentDirectory->Buffer));
- //DbgPrint("DllPath %S %d %S %d", DllPath2, wcslen(DllPath2), DllPath->Buffer, wcslen(DllPath->Buffer));
- //DbgPrint("ImagePathName %S %d %S %d", ImagePathName2, wcslen(ImagePathName2), ImagePathName->Buffer, wcslen(ImagePathName->Buffer));
- //DbgPrint("CommandLine2 %S %d", CommandLine2, wcslen(CommandLine2));
- //DbgPrint("CommandLine %S %d", CommandLine->Buffer, wcslen(CommandLine->Buffer));
-
-
- ldr = *(PULONG)(peb + 0x00C);
- ldr1 = *(PULONG)(ldr + 0x00C);
- ldr2 = *(PULONG)(ldr + 0x014);
- // ldr3 = *(PULONG)(ldr + 0x01C);
-
- ldr1_FullName = (PUNICODE_STRING)(ldr1 + 0x24); //FullDllName 完整路径
- ldr1_BaseName = (PUNICODE_STRING)(ldr1 + 0x2C); //BaseDllName 文件名称
- ldr2_FullName = (PUNICODE_STRING)(ldr2 + 0x24); //FullDllName 完整路径
-
- RtlCopyMemory(ldr1_FullName2, ldr1_FullName->Buffer, wcslen(ldr1_FullName->Buffer) * 2);//FullName这里写过遍历,好像第一个都是EXE
- RtlCopyMemory(ldr1_BaseName2, ldr1_BaseName->Buffer, wcslen(ldr1_BaseName->Buffer) * 2); //BaseName
- RtlCopyMemory(ldr2_FullName2, ldr2_FullName->Buffer, wcslen(ldr2_FullName->Buffer) * 2);//FullName这里跟上面一样,ldr2的baseName遍历出来没数据,就不获取修改了
-
-
- }
- __except (EXCEPTION_EXECUTE_HANDLER)
- {
- DbgPrint("KeStackAttachProcess失败1");
-
- }
- KeUnstackDetachProcess(&kapc1);
- peb = *(PULONG)(pProcess2 + 0x1b0);
- KeStackAttachProcess((PEPROCESS)pProcess2, &kapc2);
- _try
- {
- ProcessParameters = *(PULONG)(peb + 0x010);
-
- // RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x24), CurrentDirectory2, wcslen(CurrentDirectory2) * 2);// 这里也不能修改,改了程序会出错...
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x30), DllPath2, wcslen(DllPath2) * 2);
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x38), ImagePathName2, wcslen(ImagePathName2) * 2);
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x40), CommandLine2, wcslen(CommandLine2) * 2);
-
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x70), L"",0);//WindowTitle
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x78), L"", 0);//DesktopInfo
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x80), L"",0);//ShellInfo
- // RtlInitEmptyUnicodeString((PUNICODE_STRING)(ProcessParameters + 0x88), NULL, 0);//RuntimeData 这里遍历是NULL,所以不改
-
-
- ldr = *(PULONG)(peb + 0x00C);
- ldr1 = *(PULONG)(ldr + 0x00C);
- ldr2 = *(PULONG)(ldr + 0x014);
- // ldr3 = *(PULONG)(ldr + 0x01C); //这里没遍历到进程名称,所以不改了
-
- // RtlInitEmptyUnicodeString((PUNICODE_STRING)(ldr1 + 0x24), ldr1_FullName2, wcslen(ldr1_FullName2) * 2); //FullDllName 完整路径 不知道为什么,改了这里,激活窗口,程序就会消失
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ldr1 + 0x2C), ldr1_BaseName2, wcslen(ldr1_BaseName2) * 2); //BaseName 文件名称
- RtlInitEmptyUnicodeString((PUNICODE_STRING)(ldr2 + 0x24), ldr2_FullName2, wcslen(ldr2_FullName2) * 2); //FullDllName 完整路径,ldr2的 baseName没有数据,所以只改 FullName
-
- }
- __except (EXCEPTION_EXECUTE_HANDLER)
- {
- DbgPrint("KeStackAttachProcess失败2");
-
- }
- KeUnstackDetachProcess(&kapc2);
- PUNICODE_STRING str1,str2;
-
- //如果要过DXF读写,修改0x174跟0x1F4 这两处就可以了,其他不用改,至于改这么多,纯当学习了
- RtlCopyMemory((PCHAR)(pProcess2 + 0x174), (PCHAR)(pProcess1 + 0x174),16);
-
- str1 = (PUNICODE_STRING)(*(PULONG)(pProcess1 + 0x1F4));
- str2 = (PUNICODE_STRING)(*(PULONG)(pProcess2 + 0x1F4));
-
- RtlInitEmptyUnicodeString(str2, str1->Buffer, wcslen(str1->Buffer) * 2);
-
- //EPROCESS->SectionObject->Segment->ControlArea->FileObject->FileName
- x1 = *(PULONG)(pProcess1 + 0x138);
- if (x1!=0)
- {
- x1 = *(PULONG)(x1 + 0x14);
- x1 = *(PULONG)x1;
- x1 = *(PULONG)(x1 + 0x024);
- str1 = (PUNICODE_STRING)(x1 + 0x030);
-
- x1 = *(PULONG)(pProcess2 + 0x138);
- if (x1!=0)
- {
- x1 = *(PULONG)(x1 + 0x14);
- x1 = *(PULONG)x1;
- x1 = *(PULONG)(x1 + 0x024);
- str2 = (PUNICODE_STRING)(x1 + 0x030);
- RtlInitEmptyUnicodeString(str2, str1->Buffer, wcslen(str1->Buffer) * 2);
- }
-
- }
-
- //x1 = *(int*)(pProcess + 0x11C); // VAD 这里不知道怎么遍历 ,就不修改了
- //x1 = *(int*)(x1 + 0x10);
- //x1 = *(int*)(x1 + 0x018);
- //x1 = *(int*)(x1 + 0x024);
- //str1 = (PUNICODE_STRING)(x1 + 0x030);
- //if (str1)
- // DbgPrint("FileName = %S ", str1->Buffer);
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上面这段代码中 ,有几处不明白:
1、修改 CurrentDirectory 会造成程序出错,好像后台程序不会(没窗口的那种吧)。
2、修改 ldr1_FullName 程序会消失,跟 curdir一样,后台程序好像不会消失.
3、VAD 这个不知道怎么遍历,没改
4、把上面能改的都改了,PCHunter还是能获取到路径,不知道是不是3的原因
代码调用如下且有一个问题不明白,贴出来给大家看:
- PEPROCESS pProcess1,/*csrss.exe*/
- pProcess2 /*CE.exe*/;
- PsLookupProcessByProcessId((HANDLE)0x25C, &pProcess1);
- PsLookupProcessByProcessId((HANDLE)0x110, &pProcess2);
- if (pProcess1 != NULL && pProcess2 != NULL)
- {
- ChangeName2((ULONG)pProcess1, (ULONG)pProcess2);
- ObDereferenceObject(pProcess1);
- // ObDereferenceObject(pProcess2); //不知道为什么,不能删除对象,删除了关闭程序就蓝
- }
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