Why WriteProcessMemory getlasterror is always 487 to mention right??
HProcessId=OpenProcess (PROCESS_ALL_ACCESS, FALSE, dwProcessId);
If (hProcessId==NULL)
{
MessageBox (_T (OpenProcess failed! "" ));
}
HRemoteDllPath=VirtualAllocEx (hProcessId, NULL, strlen (Dllname), MEM_COMMIT, PAGE_READWRITE);
If (hRemoteDllPath==NULL)
{
MessageBox (_T (VirtualAlocEc failed! "" ));
}
If (WriteProcessMemory (hProcessId, hRemoteDllPath Dllname, strlen (Dllname), & amp; NSize)==0)//error 487 in front of all
{
DWORD Derror=GetLastError ();
MessageBox (_T (WriteProcessMemory failed! "" ));
}

CodePudding user response:

 bool AdjustPrivileges () {
HANDLE hToken; 
The TOKEN_PRIVILEGES tp; 
The TOKEN_PRIVILEGES oldtp; 
DWORD dwSize=sizeof (TOKEN_PRIVILEGES); 
LUID LUID; 

if (! OpenProcessToken (GetCurrentProcess (), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, & amp; HToken)) {
If (GetLastError ()==ERROR_CALL_NOT_IMPLEMENTED) return true; 
The else return false; 
} 
if (! LookupPrivilegeValue (NULL, SE_DEBUG_NAME, & amp; Luid)) {
The CloseHandle (hToken); 
return false; 
} 
ZeroMemory (& amp; Tp, sizeof (tp)); 
Tp. PrivilegeCount=1; 
Tp. Privileges [0]. Luid=Luid; 
Tp. Privileges [0]. Attributes=SE_PRIVILEGE_ENABLED; 
/* Adjust Token Privileges */
if (! AdjustTokenPrivileges (hToken, FALSE, & amp; Tp, sizeof (TOKEN_PRIVILEGES), & amp; Oldtp, & amp; DwSize)) {
The CloseHandle (hToken); 
return false; 
} 
//close handles 
The CloseHandle (hToken); 
return true; 
} 

CodePudding user response:

Experiment with other process, such as notepad, calculator, IE, see whether this error,
Right-click administrator privileges to run, look to whether or this error,
The above control experiment are carried out to determine whether permission problems,
General permission problems GetLastError is 5

CodePudding user response:

If your application is 32 bit, whether the target process is 64, if so, error is normal