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splunk-security_content/dev/endpoint/wmic_noninteractive_app_uninstallation.yml
2023-01-20 13:24:15 +01:00

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YAML

name: Wmic NonInteractive App Uninstallation
id: bff0e7a0-317f-11ec-ab4e-acde48001122
version: 2
date: '2022-07-19'
author: Teoderick Contreras, Splunk
status: production
type: Hunting
description: This analytic indentifies WMIC command-line attempting to uninstall application
non-interactively. This technique was seen in IcedID to uninstall AV products on
the compromised host to evade detection. This Hunting query maybe a good indicator
that some process tries to uninstall application using wmic which is not a common
behavior. This approach may seen in some script or third part appication to uninstall
their application but it is a good thing to check what it uninstall and why.
data_source:
- Sysmon Event ID 1
search:
selection1:
CommandLine: '* product *'
Image|endswith: wmic.exe
selection2:
CommandLine: '*where name*'
selection3:
CommandLine: '*call uninstall*'
selection4:
CommandLine: '*/nointeractive*'
condition: selection1 and selection2 and selection3 and selection4
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. In addition,
confirm the latest CIM App 4.20 or higher is installed and the latest TA for the
endpoint product.
known_false_positives: Third party application may use this approach to uninstall
applications.
references:
- https://thedfirreport.com/2021/10/18/icedid-to-xinglocker-ransomware-in-24-hours/
tags:
analytic_story:
- IcedID
- Azorult
asset_type: Endpoint
confidence: 50
impact: 50
message: Wmic $process_name$ with command-line $process$ on $dest$ attempting to
uninstall software.
mitre_attack_id:
- T1562.001
- T1562
observable:
- name: dest
type: Endpoint
role:
- Victim
- name: user
type: User
role:
- Victim
- name: process_name
type: Process
role:
- Target
product:
- Splunk Enterprise
- Splunk Enterprise Security
- Splunk Cloud
risk_score: 25
security_domain: endpoint
tests:
- name: True Positive Test
attack_data:
- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/icedid/disable_av/sysmon2.log
source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
sourcetype: xmlwineventlog