Jonhnathan
6c2dad966a
* [Rule Tuning] 3rd Party EDR - Add Crowdstrike FDR support - 9 * . --------- Co-authored-by: shashank-elastic <91139415+shashank-elastic@users.noreply.github.com>
94 lines
2.7 KiB
TOML
94 lines
2.7 KiB
TOML
[metadata]
|
|
creation_date = "2024/03/26"
|
|
integration = ["endpoint", "windows", "system", "m365_defender", "sentinel_one_cloud_funnel", "crowdstrike"]
|
|
maturity = "production"
|
|
updated_date = "2024/11/02"
|
|
min_stack_version = "8.14.0"
|
|
min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies suspicious processes being spawned by the ScreenConnect server process (ScreenConnect.Service.exe). This
|
|
activity may indicate exploitation activity or access to an existing web shell backdoor.
|
|
"""
|
|
from = "now-9m"
|
|
index = [
|
|
"logs-endpoint.events.process-*",
|
|
"winlogbeat-*",
|
|
"logs-windows.forwarded*",
|
|
"logs-windows.sysmon_operational-*",
|
|
"endgame-*",
|
|
"logs-system.security*",
|
|
"logs-m365_defender.event-*",
|
|
"logs-sentinel_one_cloud_funnel.*",
|
|
"logs-crowdstrike.fdr*",
|
|
]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "ScreenConnect Server Spawning Suspicious Processes"
|
|
references = ["https://blackpointcyber.com/resources/blog/breaking-through-the-screen/"]
|
|
risk_score = 73
|
|
rule_id = "3d00feab-e203-4acc-a463-c3e15b7e9a73"
|
|
severity = "high"
|
|
tags = [
|
|
"Domain: Endpoint",
|
|
"OS: Windows",
|
|
"Use Case: Threat Detection",
|
|
"Tactic: Initial Access",
|
|
"Tactic: Execution",
|
|
"Data Source: Elastic Endgame",
|
|
"Data Source: Elastic Defend",
|
|
"Data Source: Sysmon",
|
|
"Data Source: System",
|
|
"Data Source: Microsoft Defender for Endpoint",
|
|
"Data Source: SentinelOne",
|
|
"Data Source: Crowdstrike",
|
|
]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
process where host.os.type == "windows" and event.type == "start" and
|
|
process.parent.name : "ScreenConnect.Service.exe" and
|
|
(process.name : ("cmd.exe", "powershell.exe", "pwsh.exe", "powershell_ise.exe", "csc.exe") or
|
|
?process.pe.original_file_name in ("cmd.exe", "powershell.exe", "pwsh.dll", "powershell_ise.exe"))
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1190"
|
|
name = "Exploit Public-Facing Application"
|
|
reference = "https://attack.mitre.org/techniques/T1190/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0001"
|
|
name = "Initial Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0001/"
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1059"
|
|
name = "Command and Scripting Interpreter"
|
|
reference = "https://attack.mitre.org/techniques/T1059/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1059.001"
|
|
name = "PowerShell"
|
|
reference = "https://attack.mitre.org/techniques/T1059/001/"
|
|
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1059.003"
|
|
name = "Windows Command Shell"
|
|
reference = "https://attack.mitre.org/techniques/T1059/003/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0002"
|
|
name = "Execution"
|
|
reference = "https://attack.mitre.org/tactics/TA0002/"
|
|
|