[WINAPI] Enumerate all services

January 11, 2014

Hi everyone,

Some time ago I put this small utility together for a friend that needed it. Turns out to be a useful piece of code. Code was found on the internet, only slightly modified and cleaned up a little. Credits to the original author of the code (sorry, couldn't find the website I found it on).

This is the code:

#include <stdio.h>#include <windows.h>void ErrorDescription(DWORD p_dwError){    HLOCAL hLocal=0;    FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_ALLOCATE_BUFFER,                  0,                  p_dwError,                  MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),                  (LPTSTR)&hLocal,                  0,                  0);    MessageBox(0, (LPCTSTR)LocalLock(hLocal), "Error", MB_ICONERROR|MB_SYSTEMMODAL);    LocalFree(hLocal);}int main(){    SC_HANDLE hManager=OpenSCManager(0, 0, SC_MANAGER_ALL_ACCESS);    if(!hManager)    {        ErrorDescription(GetLastError());        return -1;    }    ENUM_SERVICE_STATUS service;    DWORD dwBytesNeeded=0;    DWORD dwServicesReturned=0;    DWORD dwResumedHandle=0;    if(!EnumServicesStatus(hManager,                           SERVICE_WIN32|SERVICE_DRIVER,                           SERVICE_STATE_ALL,                           &service,                           sizeof(ENUM_SERVICE_STATUS),                           &dwBytesNeeded,                           &dwServicesReturned,                           &dwResumedHandle))    {        if(GetLastError()==ERROR_MORE_DATA)        {            DWORD dwBytes=sizeof(ENUM_SERVICE_STATUS)+dwBytesNeeded;            ENUM_SERVICE_STATUS* pServices=0;            pServices=(ENUM_SERVICE_STATUS*)new BYTE[dwBytes];            EnumServicesStatus(hManager,                               SERVICE_WIN32|SERVICE_DRIVER,                               SERVICE_STATE_ALL, pServices,                               dwBytes,                               &dwBytesNeeded,                               &dwServicesReturned,                               &dwResumedHandle);            FILE* file=fopen("services.txt", "w+");            for(unsigned int i=0; i<dwServicesReturned; i++)            {                fprintf(file,                        "     DisplayName: %s\n"                        "     ServiceName: %s\n"                        "     ServiceType: 0x%.8X\n"                        "    CurrentState: 0x%.8X\n"                        "ControlsAccepted: 0x%.8X\n"                        "   Win32ExitCode: 0x%.8X\n"                        "SpecificExitCode: 0x%.8X\n"                        "      CheckPoint: 0x%.8X\n"                        "        WaitHint: 0x%.8X\n\n",                        (unsigned int)(pServices+i)->lpDisplayName,                        (unsigned int)(pServices+i)->lpServiceName,                        (unsigned int)(pServices+i)->ServiceStatus.dwServiceType,                        (unsigned int)(pServices+i)->ServiceStatus.dwCurrentState,                        (unsigned int)(pServices+i)->ServiceStatus.dwControlsAccepted,                        (unsigned int)(pServices+i)->ServiceStatus.dwWin32ExitCode,                        (unsigned int)(pServices+i)->ServiceStatus.dwServiceSpecificExitCode,                        (unsigned int)(pServices+i)->ServiceStatus.dwCheckPoint,                        (unsigned int)(pServices+i)->ServiceStatus.dwWaitHint);            }            fclose(file);            delete[] pServices;            pServices=0;        }        else            ErrorDescription(GetLastError());    }    if(!CloseServiceHandle(hManager))        ErrorDescription(GetLastError());    else        system("start services.txt");    return 0;}

Attached the binary.

Greetings,

Mr. eXoDia

enumservices.rar

Edited January 14, 2014 by Mr. eXoDia

January 11, 2014

hey,

i think you are allocating too much memory. Better use:

new BYTE[dwBytes]

Also you should call OpenSCManager only with SC_MANAGER_ENUMERATE_SERVICE access right. SC_MANAGER_ALL_ACCESS will probably trigger UAC.

January 11, 2014

Hi

It give a good Tutorial here

http://www.codeproject.com/Articles/7740/MFS-Service-Manger

Edited January 11, 2014 by ragdog

January 11, 2014

hey,

i think you are allocating too much memory. Better use:

new BYTE[dwBytes]

Also you should call OpenSCManager only with SC_MANAGER_ENUMERATE_SERVICE access right. SC_MANAGER_ALL_ACCESS will probably trigger UAC.

Yup, you're probably right. As said, just copy&pasted this Will update it.

Hi

I give a good Tutorial here

http://www.codeproject.com/Articles/7740/MFS-Service-Manger

Yep, looks like an interesting tut

Greetings

January 12, 2014

for dev-c++ i had to change the code to:

pServices=new ENUM_SERVICE_STATUS[dwBytes];

the printout was nice indeed... good stuff...

Tell ya what though, this Service Enumerator and a good System Module Driver Enumerator and thats kickin!

Edited January 12, 2014 by JMC31337

January 12, 2014

for dev-c++ i had to change the code to:

pServices=new ENUM_SERVICE_STATUS[dwBytes];

the printout was nice indeed... good stuff...

Tell ya what though, this Service Enumerator and a good System Module Driver Enumerator and thats kickin!

Now it should also be fixed in the initial post.

January 12, 2014

for(unsigned int i=0; i<dwServicesReturned; i++) {

fwprintf(

file,

L"Display Name\t\t: %s\n"

L" Service Name\t\t: %s\n"

L" ServiceType\t\t: 0x%p\n"

L" CurrentState\t\t: 0x%p\n"

L" ControlsAccepted\t: 0x%p\n"

L" Win32ExitCode\t\t: 0x%p\n"

L" ServiceExitCode\t: 0x%p\n"

L" CheckPoint\t\t: 0x%p\n"

L" WaitHint\t\t\t: 0x%p\n---------------------\n",

(pServices + i)->lpDisplayName,

(pServices + i)->lpServiceName,

(pServices + i)->ServiceStatus.dwServiceType,

(pServices + i)->ServiceStatus.dwCurrentState,

(pServices + i)->ServiceStatus.dwControlsAccepted,

(pServices + i)->ServiceStatus.dwWin32ExitCode,

(pServices + i)->ServiceStatus.dwServiceSpecificExitCode,

(pServices + i)->ServiceStatus.dwCheckPoint,

(pServices + i)->ServiceStatus.dwWaitHint);

}

Some useful additional information from SERVICE_STATUS structure...

http://msdn.microsoft.com/en-us/library/windows/desktop/ms685996%28v=vs.85%29.aspx

January 13, 2014

Sorry to post again here. This snippet is really not that important, but due to my post you made a bad fix.

pServices=new ENUM_SERVICE_STATUS[dwBytes/sizeof(ENUM_SERVICE_STATUS)];

Please read this:

A pointer to a buffer that contains an array of ENUM_SERVICE_STATUS structures that receive the name and service status information for each service in the database. The buffer must be large enough to hold the structures, plus the strings to which their members point.

The only valid fix is:

new BYTE[dwBytes]

with a type cast obviously.

January 13, 2014

@Insid3Code: thanks for your contribution, code + binary has been updated!

@Aguila: you're right, the code has been updated

Greetings

January 14, 2014

Duke, Nuke Em' (may require admin privs for some)



:LISTSERVICES START STOP

SC query state= all type= all | FOR /F "tokens=2" %%i IN ('FIND /I "SERVICE_NAME"') DO @ECHO %%i

SC query | FOR /F "tokens=2" %%i IN ('FIND /I "SERVICE_NAME"') DO @ECHO %%i

SC query | FOR /F "tokens=2" %%i IN ('FIND /I "SERVICE_NAME"') DO sc stop %%i

SC query | FOR /F "tokens=2" %%i IN ('FIND /I "SERVICE_NAME"') DO net stop %%i

http://www.askapache.com/windows/advanced-batch-scripting.html

Edited January 14, 2014 by JMC31337

January 14, 2014

DisplayName : Abiosdsk

ServiceName : Abiosdsk

ServiceType : 0x00000001

CurrentState : 0x00000001

ControlsAccepted : 0x00000000

Win32ExitCode : 0x00000435

-->> ServiceExitCode : 0x00000000

CheckPoint : 0x77C31AE8

WaitHint : 0x0022FF2C

Typo: Duplicated (ServiceExitCode) string in binary...

Edited January 14, 2014 by Insid3Code

January 14, 2014

DisplayName          : AbiosdskServiceName          : AbiosdskServiceType          : 0x00000001CurrentState         : 0x00000001ControlsAccepted     : 0x00000000Win32ExitCode        : 0x00000435   -->>    ServiceExitCode      : 0x00000000   -->>    ServiceExitCode      : 0x00000000   -->>    ServiceExitCode      : 0x00000000CheckPoint           : 0x77C31AE8WaitHint             : 0x0022FF2C

Typo: Duplicated (ServiceExitCode) string in binary...

What's the problem? I don't see this on my side...

DisplayName		: 1394 OHCI Compliant Host ControllerServiceName		: 1394ohciServiceType		: 0x00000001CurrentState		: 0x00000001ControlsAccepted	: 0x00000000Win32ExitCode		: 0x00000435ServiceExitCode		: 0x00000000CheckPoint		: 0x00000000WaitHint		: 0x00000000

January 14, 2014

See attached video demo...

VideoDemo.rar

January 14, 2014

See attached video demo...

Very strange, updated the file, tested & working under winxp x32 sp3 + win7 x64

January 14, 2014

DisplayName: Abiosdsk

ServiceName: Abiosdsk

ServiceType: 0x00000001

CurrentState: 0x00000001

ControlsAccepted: 0x00000000

Win32ExitCode: 0x00000435

SpecificExitCode: 0x00000000

CheckPoint: 0x00000000

WaitHint: 0x00000000

Fixed with update binary...

Also, I have something wrong with (CloseServiceHandle(hManager))

LastError ERROR_NEGATIVE_SEEK (00000083) when the application tried to close the opened handle...

from -->> if(!CloseServiceHandle(hManager))

ErrorDescription(GetLastError());

to -->> CloseServiceHandle(hManager);

ErrorDescription(GetLastError());

To reproduce the behavior change the line above to catch the error!

EAX 00000001

ECX 77DB6CF5 ADVAPI32.77DB6CF5

EDX 00010001

EBX 003F3BA0

ESP 0022FEC4

EBP 0022FF48

ESI 002563B0

EDI 00000122

EIP 00401442 enumserv.00401442

C 0 ES 0023 32bit 0(FFFFFFFF)

P 0 CS 001B 32bit 0(FFFFFFFF)

A 0 SS 0023 32bit 0(FFFFFFFF)

Z 0 DS 0023 32bit 0(FFFFFFFF)

S 0 FS 003B 32bit 7FFDF000(FFF)

T 0 GS 0000 NULL

D 0

O 0 LastErr ERROR_NEGATIVE_SEEK (00000083)

Edited January 14, 2014 by Insid3Code

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[WINAPI] Enumerate all services

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