![]() Void *CreateFileA(char *name,unsigned mode,unsigned share,void *sec,unsigned disp,unsigned attr,void *tmpl) įor (int i = 1 i chkit C:\Windows\System32\config\SAM C:\Windows\System32\config\SYSTEM C:\Windows\System32\config\SECURITY You don’t even need the Windows header files to compile it you just need to tell your compiler or linker that it needs kernel32.dll and msvcrt.dll: (The code below is in the public domain so you can do what you like with it, but you use it at your own risk.) We wrote a tiny C program that you can use to get an “accessibility indicator” for any file on the system – it simply tries to open the filename or filenames you put on the command line, and reports the Windows error code if the file couldn’t be opened up for read access. If you have ever used password cracking or hacking tools (or found evidence of them on your network after detecting an active attack), you’ll know that the SAM database is where many cybercriminals start digging in order to try to get hold of administrator credentials to move around your network.įortunately, you need to have Administrator access already in order to get at the SAM data in memory, and you can’t get at the SAM registry hive on disk while Windows is running even if you are an Administrator, because the SAM file shown above is locked for the exclusive use of the operating system. The moniker SeriousSAM comes from the filename SAM, which is short for Security Account Manager, a name that sounds as serious as the file’s content’s are. 12:57 11,272,192 SYSTEM <-some system secrets included 12:57 32,768 SECURITY <-some system secrets included 12:57 65,536 SAM <-some system secrets included ![]() They’re kept in a special, and supposedly secure, folder under the Windows directory called C:\Windows\System32\config, as you see here: These hive files include a trio called SAM, SECURITY and SYSTEM, which between them include secret data including passwords and security tokens that regular users aren’t supposed to be able to access. The moniker HiveNightmare comes from the fact that Windows stores its registry data in a small number of proprietary database files, known in Microsoft jargon as hives or hive files. …here’s another bug, disclosed by Microsoft on, that could expose critical secrets from the Windows registry.ĭenoted CVE-2021-36934, this one has variously been nicknamed HiveNightmare and SeriousSAM. As if one Windows Nightmare dogging all our printers were not enough…
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