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fix(rules): Add process executable exceptions for Potential process injection via tainted memory section rule #460

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rabbitstack merged 1 commit into from
Mar 25, 2025
Merged

fix(rules): Add process executable exceptions for Potential process injection via tainted memory section rule #460

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11 changes: 9 additions & 2 deletions rules/defense_evasion_potential_process_injection_via_tainted_memory_section.yml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
name: Potential process injection via tainted memory section
id: 8e4182f3-02e7-4e95-afc3-93d18c9a9c09
version: 1.0.0
version: 1.0.1
description: |
Identifies potential process injection when the adversary creates and maps a memory
section with RW protection rights followed by mapping of the same memory section in
Expand All @@ -25,7 +25,14 @@ condition: >
|map_view_of_section and file.view.protection = 'READWRITE' and kevt.pid != 4 and file.view.size >= 4096 and not ps.exe imatches
(
'?:\\Program Files\\*.exe',
'?:\\Program Files (x86)\\*.exe'
'?:\\Program Files (x86)\\*.exe',
'?:\\ProgramData\\Microsoft\\Windows Defender\\*\\MsMpEng.exe',
'?:\\ProgramData\\Microsoft\\Windows Defender\\*\\NisSrv.exe',
'?:\\WINDOWS\\System32\\csrss.exe',
'?:\\WINDOWS\\Explorer.exe',
'?:\\WINDOWS\\System32\\svchost.exe',
'?:\\WINDOWS\\System32\\lsass.exe',
'?:\\WINDOWS\\System32\\SecurityHealthService.exe'
)
| as e1
|map_view_of_section and file.view.protection = 'READONLY|EXECUTE' and file.key = $e1.file.key and kevt.pid != $e1.kevt.pid|
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