LOLBAS/yml/OtherMSBinaries/Rcsi.yml

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2018-06-09 00:15:06 +02:00
---
Name: rcsi.exe
Description: Non-Interactive command line inerface included with Visual Studio.
Author: 'Oddvar Moe'
Created: 2018-05-25
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Commands:
- Command: rcsi.exe bypass.csx
Description: Use embedded C# within the csx script to execute the code.
Usecase: Local execution of arbitrary C# code stored in local CSX file.
Category: Execute
Privileges: User
MitreID: T1127
OperatingSystem: Windows
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- Command: rcsi.exe bypass.csx
Description: Use embedded C# within the csx script to execute the code.
Usecase: Local execution of arbitrary C# code stored in local CSX file.
Category: AWL Bypass
Privileges: User
MitreID: T1127
OperatingSystem: Windows
Full_Path:
- Path: no default
Code_Sample:
- Code:
Detection:
- Sigma: https://github.com/SigmaHQ/sigma/blob/7bca85e40618126643b9712b80bd663c21908e26/rules/windows/process_creation/win_susp_csi.yml
- Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_unusual_process_network_connection.toml
- Elastic: https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_network_connection_from_windows_binary.toml
- BlockRule: https://github.com/SigmaHQ/sigma/blob/7bca85e40618126643b9712b80bd663c21908e26/rules/windows/process_creation/win_susp_csi.yml
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Resources:
- Link: https://enigma0x3.net/2016/11/21/bypassing-application-whitelisting-by-using-rcsi-exe/
Acknowledgement:
- Person: Matt Nelson
Handle: '@enigma0x3'