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refactor(rules): Define full paths in the share #694

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rabbitstack merged 1 commit into from
Jul 4, 2026
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refactor(rules): Define full paths in the share #694

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14 changes: 2 additions & 12 deletions rules/credential_access_potential_ntlm_hash_leak_via_shortcut_file.yml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
name: Potential NTLM hash leak via shortcut file
id: 2217339b-19d0-45ac-9ec5-26b0a968bdf1
version: 1.0.0
version: 1.0.1
description: |
Identifies potential NTLM hash leakage via malicious shortcut (.lnk) file processing.
By crafting a .lnk file with a default icon from shell32.dll and the target path pointing
Expand All @@ -25,17 +25,7 @@ condition: >
thread.callstack.summary imatches 'ntdll.dll|KernelBase.dll|SHCore.dll|windows.storage.dll|shell32.dll|SHCore.dll|*' and
thread.callstack.symbols iin ('shell32.dll!SHELL32_CNetFolderUI_CreateInstance')
|
|open_file and
file.path istartswith '\\Device\\Mup\\' and
file.extension iin
(
'.exe',
'.dll',
'.ocx',
'.cpl',
'.sys'
)
|
|open_file and file.path imatches ('\\Device\\Mup\\*.exe', '\\Device\\Mup\\*.dll', '\\Device\\Mup\\*.ocx', '\\Device\\Mup\\*.cpl', '\\Device\\Mup\\*.sys')|

severity: high

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