Suspicious DNS Lookup by Remote Utilities RMM


Description

Identifies suspicious DNS request by Remote Utilities RMM to no default domain names. Adversaries may abuse RMM software for remote access control.

Query · eql

sequence by process.entity_id with maxspan=1m
 [process where event.action == "start" and process.parent.name : ("msiexec.exe", "services.exe") and
  (process.Ext.relative_file_creation_time <= 500 or process.Ext.relative_file_name_modify_time <= 500) and
  process.code_signature.subject_name in ("Ter-Osipov Aleksei Vladimirovich", "Ter-Osipov Aleksey Vladimirovich", "Remote Utilities LLC", "Remote Utilities Pty (Cy) Ltd", "IP Ter-Osipov Aleksey Vladimirovich")]
 [dns where dns.question.name : "*.*" and not dns.question.name : ("ocsp.*", "t?.symcb.com", "t?.symcd.com", "ctldl.windowsupdate.com", "*remoteutilities.com")]
Raw source Suspicious DNS Lookup by Remote Utilities RMM · Elastic TOML
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Published by elastic/protections-artifacts ↗, licensed under Elastic License 2.0 ↗. Reproduced here unmodified.
[rule]
description = """
Identifies suspicious DNS request by Remote Utilities RMM to no default domain names. Adversaries may abuse RMM software
for remote access control.
"""
id = "ff6e6c37-8048-4b94-8c83-bb9919081caf"
license = "Elastic License v2"
name = "Suspicious DNS Lookup by Remote Utilities RMM"
os_list = ["windows"]
reference = ["https://www.remoteutilities.com/"]
version = "1.0.4"

query = '''
sequence by process.entity_id with maxspan=1m
 [process where event.action == "start" and process.parent.name : ("msiexec.exe", "services.exe") and
  (process.Ext.relative_file_creation_time <= 500 or process.Ext.relative_file_name_modify_time <= 500) and
  process.code_signature.subject_name in ("Ter-Osipov Aleksei Vladimirovich", "Ter-Osipov Aleksey Vladimirovich", "Remote Utilities LLC", "Remote Utilities Pty (Cy) Ltd", "IP Ter-Osipov Aleksey Vladimirovich")]
 [dns where dns.question.name : "*.*" and not dns.question.name : ("ocsp.*", "t?.symcb.com", "t?.symcd.com", "ctldl.windowsupdate.com", "*remoteutilities.com")]
'''

min_endpoint_version = "8.4.0"
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0

[[optional_actions]]
action = "rollback"
field = "process.entity_id"
state = 0

[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1219"
name = "Remote Access Tools"
reference = "https://attack.mitre.org/techniques/T1219/"


[threat.tactic]
id = "TA0011"
name = "Command and Control"
reference = "https://attack.mitre.org/tactics/TA0011/"

[internal]
min_endpoint_version = "8.4.0"

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