LoFP LoFP / igfxcuiservice.exe hiding *.cui files via .bat script (attrib.exe a child of cmd.exe and igfxcuiservice.exe is the parent of the cmd.exe)

Techniques

Sample rules

Hiding Files with Attrib.exe

Description

Detects usage of attrib.exe to hide files from users.

Detection logic

condition: all of selection_* and not 1 of filter_main_* and not 1 of filter_optional_*
filter_main_msiexec:
  CommandLine|contains: '\desktop.ini '
filter_optional_intel:
  CommandLine: +R +H +S +A \\\*.cui
  ParentCommandLine: C:\\WINDOWS\\system32\\\*.bat
  ParentImage|endswith: \cmd.exe
selection_cli:
  CommandLine|contains: ' +h '
selection_img:
- Image|endswith: \attrib.exe
- OriginalFileName: ATTRIB.EXE