mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
P4T12ICK
65 lines
2.3 KiB
YAML
65 lines
2.3 KiB
YAML
name: Ryuk Wake on LAN Command
|
|
id: 538d0152-7aaa-11eb-beaa-acde48001122
|
|
version: 1
|
|
date: '2021-03-01'
|
|
author: Michael Haag, Splunk
|
|
status: production
|
|
type: TTP
|
|
description: This Splunk query identifies the use of Wake-on-LAN utilized by Ryuk
|
|
ransomware. The Ryuk Ransomware uses the Wake-on-Lan feature to turn on powered
|
|
off devices on a compromised network to have greater success encrypting them. This
|
|
is a high fidelity indicator of Ryuk ransomware executing on an endpoint. Upon triage,
|
|
isolate the endpoint. Additional file modification events will be within the users
|
|
profile (\appdata\roaming) and in public directories (users\public\). Review all
|
|
Scheduled Tasks on the isolated endpoint and across the fleet. Suspicious Scheduled
|
|
Tasks will include a path to a unknown binary and those endpoints should be isolated
|
|
until triaged.
|
|
data_source:
|
|
- Sysmon Event ID 1
|
|
search:
|
|
selection1:
|
|
CommandLine:
|
|
- '*8 LAN*'
|
|
- '*9 REP*'
|
|
condition: (selection1)
|
|
how_to_implement: To successfully implement this search you need to be ingesting information
|
|
on process that include the name of the process responsible for the changes from
|
|
your endpoints into the `Endpoint` datamodel in the `Processes` node.
|
|
known_false_positives: Limited to no known false positives.
|
|
references:
|
|
- https://www.bleepingcomputer.com/news/security/ryuk-ransomware-uses-wake-on-lan-to-encrypt-offline-devices/
|
|
- https://www.bleepingcomputer.com/news/security/ryuk-ransomware-now-self-spreads-to-other-windows-lan-devices/
|
|
- https://www.cert.ssi.gouv.fr/uploads/CERTFR-2021-CTI-006.pdf
|
|
tags:
|
|
analytic_story:
|
|
- Ryuk Ransomware
|
|
asset_type: Endpoint
|
|
confidence: 90
|
|
impact: 70
|
|
message: A process $process_name$ with wake on LAN commandline $process$ in host
|
|
$dest$
|
|
mitre_attack_id:
|
|
- T1059
|
|
- T1059.003
|
|
observable:
|
|
- name: dest
|
|
type: Hostname
|
|
role:
|
|
- Victim
|
|
- name: user
|
|
type: User
|
|
role:
|
|
- Victim
|
|
product:
|
|
- Splunk Enterprise
|
|
- Splunk Enterprise Security
|
|
- Splunk Cloud
|
|
risk_score: 63
|
|
security_domain: endpoint
|
|
tests:
|
|
- name: True Positive Test
|
|
attack_data:
|
|
- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1059.003/ryuk/windows-sysmon.log
|
|
source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
|
|
sourcetype: xmlwineventlog
|