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splunk-security_content/detections/endpoint/windows_process_injection_remote_thread.yml
2024-06-26 14:41:53 +00:00

82 lines
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YAML

name: Windows Process Injection Remote Thread
id: 8a618ade-ca8f-4d04-b972-2d526ba59924
version: 2
date: '2024-05-24'
author: Teoderick Contreras, Splunk
status: production
type: TTP
description: The following analytic detects suspicious remote thread execution in
processes such as Taskmgr.exe, calc.exe, and notepad.exe, which may indicate process
injection by malware like Qakbot. This detection leverages Sysmon EventCode 8 to
identify remote thread creation in specific target processes. This activity is significant
as it often signifies an attempt by malware to inject malicious code into legitimate
processes, potentially leading to unauthorized code execution. If confirmed malicious,
this could allow attackers to execute arbitrary code, escalate privileges, or maintain
persistence on the compromised host.
data_source:
- Sysmon EventID 8
search: '`sysmon` EventCode=8 TargetImage IN ("*\\Taskmgr.exe", "*\\calc.exe", "*\\notepad.exe",
"*\\rdpclip.exe", "*\\explorer.exe", "*\\wermgr.exe", "*\\ping.exe", "*\\OneDriveSetup.exe",
"*\\dxdiag.exe", "*\\mobsync.exe", "*\\msra.exe", "*\\xwizard.exe","*\\cmd.exe",
"*\\powershell.exe") | stats count min(_time) as firstTime max(_time) as lastTime
by TargetImage TargetProcessId SourceProcessId EventCode StartAddress SourceImage
dest | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
| `windows_process_injection_remote_thread_filter`'
how_to_implement: To successfully implement this search, you must be ingesting data
that records process activity from your hosts like remote thread EventCode=8 of
sysmon. If you are using Sysmon, you must have at least version 6.0.4 of the Sysmon
TA.
known_false_positives: unknown
references:
- https://twitter.com/pr0xylife/status/1585612370441031680?s=46&t=Dc3CJi4AnM-8rNoacLbScg
- https://thedfirreport.com/2023/06/12/a-truly-graceful-wipe-out/
tags:
analytic_story:
- Qakbot
- Graceful Wipe Out Attack
- Warzone RAT
asset_type: Endpoint
confidence: 80
impact: 80
message: process $SourceImage$ create a remote thread to process $TargetImage$ on
host $dest$
mitre_attack_id:
- T1055
- T1055.002
observable:
- name: dest
type: Hostname
role:
- Victim
- name: SourceImage
type: Process
role:
- Attacker
product:
- Splunk Enterprise
- Splunk Enterprise Security
- Splunk Cloud
required_fields:
- _time
- SourceImage
- TargetImage
- TargetProcessId
- SourceProcessId
- StartAddress
- EventCode
- dest
- signature
- TargetProcessGuid
- SourceProcessGuid
- StartAddress
risk_score: 64
security_domain: endpoint
tests:
- name: True Positive Test
attack_data:
- data:
https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/qakbot/qbot_wermgr2/sysmon_wermgr2.log
source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
sourcetype: xmlwineventlog
update_timestamp: true