可能这对高手来说已经是老掉牙的东西了,
还是来说说原理把(本人也是菜鸟啊)!
远程注入就是在目标进程中用VirtualAllocEx申请一段内存,
然后用WriteProcessMemory函数将自己dll的完整路径复制到远程进程中,
然后在Kernel32中计算LoadLibraryA的地址,再调用LoadLibraryA函数加载远程dll,
并在CreateRemoteThread创建远程进程!
Code Language : C
#include \"stdafx.h\"
#include \"windows.h\"
#include \"tlhelp32.h\"
#include \"stdio.h\"
#pragma comment(lib,\"ws2_32\")
int EnableDebugPriv(const char * name)//提提权函数
{
HANDLE hToken;
TOKEN_PRIVILEGES tp;
LUID luid;
//打开进程令牌环
if(!OpenProcessToken(GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,
&hToken))
{
MessageBox(NULL,\"OpenProcessToken Error!\",\"Error!\",MB_OK);
return 1;
}
//获得进程本地唯一ID
if(!LookupPrivilegeValue(NULL,name,&luid))
{
MessageBox(NULL,\"LookupPrivivlegeValue Error!\",\"Error\",MB_OK);
}
tp.PrivilegeCount=1;
tp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;
tp.Privileges[0].Luid=luid;
//调整权限
if(!AdjustTokenPrivileges(hToken,0,&tp,sizeof(TOKEN_PRIVILEGES),NULL,NULL))
{
MessageBox(NULL,\"AdjustTokenPrivileges Error!\",\"Error\",MB_OK);
return 1;
}
return 0;
}
BOOL injectit(const char *DllPath,const DWORD dwRemoteProcessld)//注入主函数
{
HANDLE hrp;
if(EnableDebugPriv(SE_DEBUG_NAME))
{
MessageBox(NULL,\"Add Privilege Error!\",\"Error\",MB_OK);
return FALSE;
}
if((hrp=OpenProcess(PROCESS_CREATE_THREAD|//允许远程创建线程
PROCESS_VM_OPERATION|//允许远程VM操作
PROCESS_VM_WRITE,//允许远程VM写
FALSE,dwRemoteProcessld))==NULL)
{
MessageBox(NULL,\"OpenProcess Error!\",\"Error\",MB_OK);
return FALSE;
}
char *psLibFileRemote;
//使用VirtualAllocEx函数在远程进程的内存地址空间分配DLL文件名缓冲
psLibFileRemote=(char *)VirtualAllocEx(hrp,NULL,lstrlen(DllPath)+1,
MEM_COMMIT,PAGE_READWRITE);
if(psLibFileRemote==NULL)
{
MessageBox(NULL,\"VirtualAllocEx Error!\",\"Error\",MB_OK);
return FALSE;
}
//使用WriteProcessMemory函数将DLL的路径名复制到远程的内存空间
if(WriteProcessMemory(hrp,psLibFileRemote,(void *)DllPath,lstrlen(DllPath)+1,NULL)==0)
{
MessageBox(NULL,\"WriteProcessMemory Error!\",\"Error\",MB_OK);
return FALSE;
}
//计算LoadLibraryA的入口地址
PTHREAD_START_ROUTINE pfnStartAddr=(PTHREAD_START_ROUTINE)
GetProcAddress(GetModuleHandle(TEXT(\"Kernel32\")),\"LoadLibraryA\");
if(pfnStartAddr==NULL)
{
MessageBox(NULL,\"GetProcAddress Error!\",\"Error\",MB_OK);
return FALSE;
}
//pfnStartAddr地址就是LoadLibraryA的入口地址
HANDLE hrt;
if((hrt=CreateRemoteThread(hrp,
NULL,
0,
pfnStartAddr,
psLibFileRemote,
0,
NULL))==NULL)
{
MessageBox(NULL,\"CreateRemote Error!\",\"Error\",MB_OK);
return FALSE;
}
return TRUE;
}
unsigned long getpid(char *pn)//得到进程pid
{
BOOL b;
HANDLE hnd;
PROCESSENTRY32 pe;
//得到进程快照
hnd=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
pe.dwSize=sizeof(pe);
b=Process32First(hnd,&pe);
while(b)
{
if(strcmp(pn,pe.szExeFile)==0)
return pe.th32ProcessID;
b=Process32Next(hnd,&pe);
}
}
int main(int argc, char* argv[])
{
if(argc<2)
{
printf(\"++++++++++++++++++++++++++++++++++++++++++++++++++++++\n\");
printf(\"injectpro V1.0!\nAuthor:text QQ:52674548\nusage:\n injectpro.exe targetprocess youdll\n\");
printf(\" eg:injectpro.exe iexplorer.exe c:\\youdll.dll\n\");
printf(\"++++++++++++++++++++++++++++++++++++++++++++++++++++++\n\");
return 0;
}
EnableDebugPriv(SE_DEBUG_NAME);//自身提权
DWORD pid=getpid(argv[1]);
//printf(\"%d\",pid);
if(pid==0)
return 1;
if(injectit(argv[2],pid))
{
printf(\"inject success!\");
}
else
{
printf(\"inject error!\");
}
return 0;
}
本篇文章来源于 黑反在线-信息安全第一站 原文链接：http://www.hf110.com/hack/hackprg/200809/203556.html