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Get process inventory for Windows avoiding WMIC. #1760

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merged 13 commits into from Nov 30, 2018

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DarkMatterCore
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@DarkMatterCore DarkMatterCore commented Oct 30, 2018

This pull request fixes #557 by replacing the usage of WMIC commands with WinAPI calls in Windows Syscollector. Additionally, the following changes were also made:

  • Added more files to the 'clean-windows' rule in Makefile.
  • Added hardcoded exceptions for PIDs 0 and 4 in get_process_name() and sys_proc_windows().
  • Both UserModeTime and KernelModeTime values are converted from 100-nanosecond units to seconds before getting stored.
  • Fixed UserModeTime getting stored with key 'stime' in sys_proc_windows(), overwriting the KernelModeTime value.
  • Set SeDebugPrivilege token before performing any process-related WinAPI calls.
  • Base Board serial number is now parsed directly from the raw SMBIOS data structures.

Regarding the last point, it's important to highlight that there's a lot of information that can potentially be gathered from SMBIOS data, and that this process could also be performed under other operative systems.

- Added more files to the 'clean-windows' rule in Makefile.
- Fixed memory leak after retrieving the raw SMBIOS data structures.
- Fixed the SMBIOS signature used with GetSystemFirmwareTable().
- Added hardcoded exceptions for PIDs 0 and 4 in get_process_name() and sys_proc_windows().
- Replaced EnumProcessModules() + GetModuleBaseName() with GetProcessImageFileName() in get_process_name().
- Fixed a memory leak in sys_proc_windows() after getting the name from a process.
- Replaced GetModuleFileNameEx() with GetProcessImageFileName() in sys_proc_windows(). A new function, ntpath_to_win32path(), converts the returned Windows kernel device path to a valid Win32 file path.
- Both UserModeTime and KernelModeTime values are converted from 100-nanosecond units to seconds before getting stored.
- Fixed UserModeTime getting stored with key 'stime' in sys_proc_windows(), overwriting the KernelModeTime value.

*** TO DO ***

- Find a way to retrieve the virtual size from a process using WinAPI.
- Find a way to retrieve more information from PIDs 0 and 4 using WinAPI.
- Calculate virtual size using the data retrieved with GetProcessMemoryInfo().
- Set SeDebugPrivilege token before performing any process-related WinAPI calls.
@albertomn86 albertomn86 added this to In review in Wazuh TBD via automation Oct 30, 2018
@albertomn86 albertomn86 self-requested a review October 30, 2018 11:29
@albertomn86 albertomn86 self-assigned this Oct 30, 2018
@vikman90 vikman90 modified the milestone: Weekly sprint - 47th Nov 19, 2018
@albertomn86 albertomn86 requested review from chemamartinez and removed request for albertomn86 November 20, 2018 10:42
@chemamartinez chemamartinez removed this from In review in Wazuh TBD Nov 20, 2018
@chemamartinez chemamartinez added this to Needs review in Wazuh 3.8.0 via automation Nov 20, 2018
@chemamartinez chemamartinez changed the base branch from 3.7 to 3.8 November 26, 2018 10:00
@chemamartinez chemamartinez merged commit 8c02adc into 3.8 Nov 30, 2018
Wazuh 3.8.0 automation moved this from Needs review to Done Nov 30, 2018
@chemamartinez chemamartinez deleted the 3.7-syscollector-winapi branch November 30, 2018 18:21
@chemamartinez
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GJ @DarkMatterCore !!

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