Files
splunk-security_content/detections/endpoint/windows_process_injection_remote_thread.yml
T

77 lines
3.4 KiB
YAML

name: Windows Process Injection Remote Thread
id: 8a618ade-ca8f-4d04-b972-2d526ba59924
version: 5
date: '2025-02-10'
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/
drilldown_searches:
- name: View the detection results for - "$dest$"
search: '%original_detection_search% | search dest = "$dest$"'
earliest_offset: $info_min_time$
latest_offset: $info_max_time$
- name: View risk events for the last 7 days for - "$dest$"
search: '| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$dest$")
starthoursago=168 | stats count min(_time) as firstTime max(_time) as lastTime
values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories)
as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic)
as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)`'
earliest_offset: $info_min_time$
latest_offset: $info_max_time$
rba:
message: process $SourceImage$ create a remote thread to process $TargetImage$ on
host $dest$
risk_objects:
- field: dest
type: system
score: 64
threat_objects:
- field: SourceImage
type: process
tags:
analytic_story:
- Qakbot
- Graceful Wipe Out Attack
- Warzone RAT
asset_type: Endpoint
mitre_attack_id:
- T1055.002
product:
- Splunk Enterprise
- Splunk Enterprise Security
- Splunk Cloud
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