7 Responses

1. satoo

   18|Mar|2008 1

   1. how can i get username of process (in win2000, winxp, terminal service) started under other user? i do following: OpenProcess, OpenProcessToken, LookupAccountSid (or OpenProcess, GetSecurityInfo, LookupAccountSid). i get truth only if i use both of method

   2. CachedGetUserFromSid how to use it? i call it with good sid (IsValidSid before) but i take AV.

   3. lsass uses cpu if i use LookupAccountSid etc, but taskman.exe don’t load system through lsass. how taskman is working?

2. Christian Wimmer

   19|Mar|2008 2

   1. You can use either GetTokenInformation with TokenUser as parameter, or impersonate the token and call GetUserName to get the user name. However OpenProcess needs the DEBUG privilege to open foreign processes.

   2. Without reading your code I can only guess which I don’t do now.
   JWSCL implements this function in JwsclSid.pas at function TJwSecurityId.GetCachedUserFromSid : WideString;

   3. You can use Mark Russinovich’s ProcessExplorer to find out more about your system.

3. rweijnen

   19|Mar|2008 3

   @cachedgetuserfromsid: are you reserving memory?

   if IsValidSid(ProcessInfoPtr^[i].pUserSid) then
   begin
      cbUserName := 256;
      GetMem(pwUserName, cbUserName * SizeOf(WCHAR));
      CachedGetUserFromSid(ProcessInfoPtr^[i].pUserSid, pwUserName, cbUsername);
      FreeMem(pwUserName);
   end;

4. satoo

   24|Mar|2008 4

   thx a lot. i was stupid (a little ) it’s works fine. another question: how can i get user’s domain. result of CachedGetUserFromSid is USERNAME_ONLY, but some users have similar local and domain users; some users are members of other domain….

   sorry of my russian’s english

5. Christian Wimmer

   24|Mar|2008 5

   The SID already contains the domain SID. See also here. So you can use the API GetWindowsAccountDomainSid to get the users’ domain as a SID or you can use LookupAccountSid to get the user’s name and domain.

   Try out the JWSCL – it helps a lot.

6. Oliver

   04|Apr|2008 6

   Привет,

   sorry of my russian’s english

   … а может быть кто-нибудь тоже понимает на-русском. Но наверное редко здесь

   // Оливер

7. satoo

   10|Aug|2008 7

   я не тормоз рсс подписку не видел. чего изволите?