Tanaka Zakku
42 lines
1.5 KiB
YAML
42 lines
1.5 KiB
YAML
title: SQL Client Tools PowerShell Session Detection
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author: Agro (@agro_sev) oscd.communitly
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date: 2020/10/13
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description: This rule detects execution of a PowerShell code through the sqltoolsps.exe
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utility, which is included in the standard set of utilities supplied with the
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Microsoft SQL Server Management studio. Script blocks are not logged in this case,
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so this utility helps to bypass protection mechanisms based on the analysis of
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these logs.
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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Image: '*\sqltoolsps.exe'
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SELECTION_3:
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ParentImage: '*\sqltoolsps.exe'
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SELECTION_4:
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OriginalFileName: \sqltoolsps.exe
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SELECTION_5:
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ParentImage: '*\smss.exe'
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condition: (SELECTION_1 and ((SELECTION_2 or SELECTION_3) or (SELECTION_4 and not
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(SELECTION_5))))
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falsepositives:
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- Direct PS command execution through SQLToolsPS.exe is uncommon, childprocess sqltoolsps.exe
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spawned by smss.exe is a legitimate action.
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id: a746c9b8-a2fb-4ee5-a428-92bee9e99060
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level: medium
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logsource:
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category: process_creation
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product: windows
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references:
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- https://github.com/LOLBAS-Project/LOLBAS/blob/master/yml/OtherMSBinaries/Sqltoolsps.yml
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- https://twitter.com/pabraeken/status/993298228840992768
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status: experimental
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tags:
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- attack.execution
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- attack.t1059.001
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- attack.defense_evasion
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- attack.t1127
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yml_filename: win_susp_use_of_sqltoolsps_bin.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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