Added detection testing service results inWermgr Process Spawned CMD Or Powershell Process

This commit is contained in:
root
2021-05-03 15:42:03 +00:00
parent 66556b135d
commit 8386cfd475
@@ -6,19 +6,21 @@ author: Teoderick Contreras, Splunk
type: batch
datamodel:
- Endpoint
description: This search is designed to detect suspicious cmd and powershell process spawned by wermgr.exe process.
This suspicious behavior are commonly seen in code injection technique technique like trickbot to execute a shellcode, dll modules to run malicious behavior.
search: '| tstats `security_content_summariesonly` values(Processes.process) as cmdline min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes
where Processes.parent_process_name = "wermgr.exe" Processes.process_name = "cmd.exe" OR Processes.process_name = "powershell.exe"
by Processes.parent_process_name Processes.parent_process_id Processes.process_name Processes.process Processes.process_id Processes.process_guid Processes.dest Processes.user
| `drop_dm_object_name(Processes)`
| `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`
description: This search is designed to detect suspicious cmd and powershell process
spawned by wermgr.exe process. This suspicious behavior are commonly seen in code
injection technique technique like trickbot to execute a shellcode, dll modules
to run malicious behavior.
search: '| tstats `security_content_summariesonly` values(Processes.process) as cmdline
min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes
where Processes.parent_process_name = "wermgr.exe" Processes.process_name = "cmd.exe"
OR Processes.process_name = "powershell.exe" by Processes.parent_process_name Processes.parent_process_id Processes.process_name
Processes.process Processes.process_id Processes.process_guid Processes.dest Processes.user
| `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
| `wermgr_process_spawned_cmd_or_powershell_process_filter`'
how_to_implement: To successfully implement this search, you need to be ingesting
logs with the process name, parent process, and command-line executions from your
endpoints. If you are using Sysmon, you must have at least version 6.0.4 of the
Sysmon TA.
Sysmon TA.
known_false_positives: unknown
references:
- https://labs.vipre.com/trickbot-and-its-modules/
@@ -43,5 +45,8 @@ tags:
- Processes.process_id
- Processes.process_guid
- Processes.dest
- Processes.user
security_domain: endpoint
- Processes.user
security_domain: endpoint
automated_detection_testing: passed
dataset:
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/trickbot/infection/windows-sysmon.log