Files
splunk-security_content/playbooks/Windows_Defender_ATP_Identifier_Activity_Analysis.py
2023-05-04 14:17:57 -05:00

370 lines
17 KiB
Python

"""
Accepts a file_hash or domain name, and asks Windows Defender ATP for a list of devices that have interacted with each. It then produces a normalized output and summary table.
"""
import phantom.rules as phantom
import json
from datetime import datetime, timedelta
@phantom.playbook_block()
def on_start(container):
phantom.debug('on_start() called')
# call 'routing_artifacts' block
routing_artifacts(container=container)
return
@phantom.playbook_block()
def routing_artifacts(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("routing_artifacts() called")
################################################################################
# Route SHA1 file hashes and domains respectively
################################################################################
# collect filtered artifact ids and results for 'if' condition 1
matched_artifacts_1, matched_results_1 = phantom.condition(
container=container,
conditions=[
["playbook_input:file_hash", "!=", None]
],
name="routing_artifacts:condition_1")
# call connected blocks if filtered artifacts or results
if matched_artifacts_1 or matched_results_1:
get_file_devices(action=action, success=success, container=container, results=results, handle=handle, filtered_artifacts=matched_artifacts_1, filtered_results=matched_results_1)
# collect filtered artifact ids and results for 'if' condition 2
matched_artifacts_2, matched_results_2 = phantom.condition(
container=container,
conditions=[
["playbook_input:domain", "!=", None]
],
name="routing_artifacts:condition_2")
# call connected blocks if filtered artifacts or results
if matched_artifacts_2 or matched_results_2:
get_domain_devices(action=action, success=success, container=container, results=results, handle=handle, filtered_artifacts=matched_artifacts_2, filtered_results=matched_results_2)
return
@phantom.playbook_block()
def get_file_devices(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("get_file_devices() called")
# phantom.debug('Action: {0} {1}'.format(action['name'], ('SUCCEEDED' if success else 'FAILED')))
filtered_input_0_file_hash = phantom.collect2(container=container, datapath=["filtered-data:routing_artifacts:condition_1:playbook_input:file_hash"])
parameters = []
# build parameters list for 'get_file_devices' call
for filtered_input_0_file_hash_item in filtered_input_0_file_hash:
if filtered_input_0_file_hash_item[0] is not None:
parameters.append({
"file_hash": filtered_input_0_file_hash_item[0],
})
################################################################################
## Custom Code Start
################################################################################
# Write your custom code here...
################################################################################
## Custom Code End
################################################################################
phantom.act("get file devices", parameters=parameters, name="get_file_devices", assets=["windows_defender_atp"], callback=filter_file_response)
return
@phantom.playbook_block()
def get_domain_devices(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("get_domain_devices() called")
# phantom.debug('Action: {0} {1}'.format(action['name'], ('SUCCEEDED' if success else 'FAILED')))
filtered_input_0_domain = phantom.collect2(container=container, datapath=["filtered-data:routing_artifacts:condition_2:playbook_input:domain"])
parameters = []
# build parameters list for 'get_domain_devices' call
for filtered_input_0_domain_item in filtered_input_0_domain:
if filtered_input_0_domain_item[0] is not None:
parameters.append({
"domain": filtered_input_0_domain_item[0],
})
################################################################################
## Custom Code Start
################################################################################
# Write your custom code here...
################################################################################
## Custom Code End
################################################################################
phantom.act("get domain devices", parameters=parameters, name="get_domain_devices", assets=["windows_defender_atp"], callback=filter_domain_response)
return
@phantom.playbook_block()
def filter_file_response(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("filter_file_response() called")
# collect filtered artifact ids and results for 'if' condition 1
matched_artifacts_1, matched_results_1 = phantom.condition(
container=container,
conditions=[
["get_file_devices:action_result.summary.{summaryVar}", ">", 0]
],
name="filter_file_response:condition_1")
# call connected blocks if filtered artifacts or results
if matched_artifacts_1 or matched_results_1:
format_report_file(action=action, success=success, container=container, results=results, handle=handle, filtered_artifacts=matched_artifacts_1, filtered_results=matched_results_1)
return
@phantom.playbook_block()
def filter_domain_response(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("filter_domain_response() called")
# collect filtered artifact ids and results for 'if' condition 1
matched_artifacts_1, matched_results_1 = phantom.condition(
container=container,
conditions=[
["get_domain_devices:action_result.summary.{summaryVar}", ">", 0]
],
name="filter_domain_response:condition_1")
# call connected blocks if filtered artifacts or results
if matched_artifacts_1 or matched_results_1:
format_report_domain(action=action, success=success, container=container, results=results, handle=handle, filtered_artifacts=matched_artifacts_1, filtered_results=matched_results_1)
return
@phantom.playbook_block()
def format_report_file(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("format_report_file() called")
template = """SOAR searched for occurrences of `{0}` within your environment using Windows Defender ATP. The table below shows a summary of the information gathered.\n\n| File | Computer | Last IP Address | OS | Defender ATP ID | Source |\n| --- | --- | --- | --- | --- | --- |\n%%\n| `{0}` | {1} | {2} | {3} | {4} | Defender ATP |\n%%\n"""
# parameter list for template variable replacement
parameters = [
"filtered-data:filter_file_response:condition_1:get_file_devices:action_result.parameter.file_hash",
"filtered-data:filter_file_response:condition_1:get_file_devices:action_result.data.*.computerDnsName",
"filtered-data:filter_file_response:condition_1:get_file_devices:action_result.data.*.lastIpAddress",
"filtered-data:filter_file_response:condition_1:get_file_devices:action_result.data.*.osPlatform",
"filtered-data:filter_file_response:condition_1:get_file_devices:action_result.data.*.id"
]
################################################################################
## Custom Code Start
################################################################################
# Write your custom code here...
################################################################################
## Custom Code End
################################################################################
phantom.format(container=container, template=template, parameters=parameters, name="format_report_file")
build_file_output(container=container)
return
@phantom.playbook_block()
def format_report_domain(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("format_report_domain() called")
template = """SOAR searched for occurrences of `{0}` within your environment using Windows Defender ATP. The table below shows a summary of the information gathered.\n\n| Domain | Computer | Last IP Address | OS | Defender ATP ID | Source |\n| --- | --- | --- | --- | --- | --- |\n%%\n| `{0}` | {1} | {2} | {3} | {4} | Defender ATP |\n%%"""
# parameter list for template variable replacement
parameters = [
"filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.parameter.domain",
"filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.data.*.computerDnsName",
"filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.data.*.lastIpAddress",
"filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.data.*.osPlatform",
"filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.data.*.id"
]
################################################################################
## Custom Code Start
################################################################################
# Write your custom code here...
################################################################################
## Custom Code End
################################################################################
phantom.format(container=container, template=template, parameters=parameters, name="format_report_domain")
build_domain_output(container=container)
return
@phantom.playbook_block()
def build_file_output(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("build_file_output() called")
################################################################################
# Iterates through the objects returned by previous actions to create a list of
# devices, which is then appended to the rest of the Observable object that contains
# the context for that list
################################################################################
filtered_result_0_data_filter_file_response = phantom.collect2(container=container, datapath=["filtered-data:filter_file_response:condition_1:get_file_devices:action_result.parameter.file_hash","filtered-data:filter_file_response:condition_1:get_file_devices:action_result.data","filtered-data:filter_file_response:condition_1:get_file_devices:action_result.summary.total_devices"])
filtered_result_0_parameter_file_hash = [item[0] for item in filtered_result_0_data_filter_file_response]
filtered_result_0_data = [item[1] for item in filtered_result_0_data_filter_file_response]
filtered_result_0_summary_total_devices = [item[2] for item in filtered_result_0_data_filter_file_response]
build_file_output__observable_array = None
################################################################################
## Custom Code Start
################################################################################
build_file_output__observable_array = []
device_list = []
indicator = filtered_result_0_parameter_file_hash[0]
count = filtered_result_0_summary_total_devices[0]
# Build list of device objects
for item in filtered_result_0_data:
device = item[0]
device_filtered = {
"name": device['computerDnsName'],
"id": device['id'],
"ip_address": device['lastIpAddress'],
"operating_system": device['osPlatform']
}
device_list.append(device_filtered)
# Build observable object
observable_array = {
"value": indicator,
"type": "file_hash",
"total_count": count,
"source": "Defender ATP",
"identifier_activity": device_list
}
build_file_output__observable_array.append(observable_array)
################################################################################
## Custom Code End
################################################################################
phantom.save_run_data(key="build_file_output:observable_array", value=json.dumps(build_file_output__observable_array))
return
@phantom.playbook_block()
def build_domain_output(action=None, success=None, container=None, results=None, handle=None, filtered_artifacts=None, filtered_results=None, custom_function=None, **kwargs):
phantom.debug("build_domain_output() called")
################################################################################
# Iterates through the objects returned by previous actions to create a list of
# devices, which is then appended to the rest of the Observable object that contains
# the context for that list
################################################################################
filtered_result_0_data_filter_domain_response = phantom.collect2(container=container, datapath=["filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.parameter.domain","filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.data","filtered-data:filter_domain_response:condition_1:get_domain_devices:action_result.summary.total_devices"])
filtered_result_0_parameter_domain = [item[0] for item in filtered_result_0_data_filter_domain_response]
filtered_result_0_data = [item[1] for item in filtered_result_0_data_filter_domain_response]
filtered_result_0_summary_total_devices = [item[2] for item in filtered_result_0_data_filter_domain_response]
build_domain_output__observable_array = None
################################################################################
## Custom Code Start
################################################################################
build_domain_output__observable_array = []
device_list = []
indicator = filtered_result_0_parameter_domain[0]
count = filtered_result_0_summary_total_devices[0]
# Build list of device objects
for item in filtered_result_0_data:
device = item[0]
device_filtered = {
"name": device['computerDnsName'],
"id": device['id'],
"ip_address": device['lastIpAddress'],
"operating_system": device['osPlatform']
}
device_list.append(device_filtered)
# Build observable object
observable_array = {
"value": indicator,
"type": "domain",
"total_count": count,
"source": "Defender ATP",
"identifier_activity": device_list
}
build_domain_output__observable_array.append(observable_array)
################################################################################
## Custom Code End
################################################################################
phantom.save_run_data(key="build_domain_output:observable_array", value=json.dumps(build_domain_output__observable_array))
return
@phantom.playbook_block()
def on_finish(container, summary):
phantom.debug("on_finish() called")
format_report_file = phantom.get_format_data(name="format_report_file")
format_report_domain = phantom.get_format_data(name="format_report_domain")
build_file_output__observable_array = json.loads(_ if (_ := phantom.get_run_data(key="build_file_output:observable_array")) != "" else "null") # pylint: disable=used-before-assignment
build_domain_output__observable_array = json.loads(_ if (_ := phantom.get_run_data(key="build_domain_output:observable_array")) != "" else "null") # pylint: disable=used-before-assignment
observable_combined_value = phantom.concatenate(build_file_output__observable_array, build_domain_output__observable_array)
markdown_report_combined_value = phantom.concatenate(format_report_file, format_report_domain)
output = {
"observable": observable_combined_value,
"markdown_report": markdown_report_combined_value,
}
################################################################################
## Custom Code Start
################################################################################
# Write your custom code here...
################################################################################
## Custom Code End
################################################################################
phantom.save_playbook_output_data(output=output)
return