mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
P4T12ICK
67 lines
2.2 KiB
YAML
67 lines
2.2 KiB
YAML
name: Enumerate Users Local Group Using Telegram
|
|
id: fcd74532-ae54-11eb-a5ab-acde48001122
|
|
version: 1
|
|
date: '2021-05-06'
|
|
author: Teoderick Contreras, Splunk
|
|
type: TTP
|
|
datamodel:
|
|
- Endpoint
|
|
description: This analytic will detect a suspicious Telegram process enumerating all
|
|
network users in a local group. This technique was seen in a Monero infected honeypot
|
|
to mapped all the users on the compromised system. EventCode 4798 is generated when
|
|
a process enumerates a user's security-enabled local groups on a computer or device.
|
|
search: '`wineventlog_security` EventCode=4798 Process_Name = "*\\telegram.exe" |
|
|
stats count min(_time) as firstTime max(_time) as lastTime by ComputerName EventCode
|
|
Process_Name Process_ID Account_Name Account_Domain Logon_ID Security_ID Message
|
|
| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `enumerate_users_local_group_using_telegram_filter`'
|
|
how_to_implement: To successfully implement this search, you need to be ingesting
|
|
logs with the Task Schedule (Exa. Security Log EventCode 4798) endpoints. Tune and
|
|
filter known instances of process like logonUI used in your environment.
|
|
known_false_positives: unknown
|
|
references:
|
|
- https://thedfirreport.com/2020/04/20/sqlserver-or-the-miner-in-the-basement/
|
|
- https://docs.microsoft.com/en-us/windows/security/threat-protection/auditing/event-4798
|
|
tags:
|
|
analytic_story:
|
|
- XMRig
|
|
confidence: 100
|
|
context:
|
|
- Source:Endpoint
|
|
- Stage:Defense Evasion
|
|
dataset:
|
|
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/minergate/windows-security.log
|
|
impact: 80
|
|
kill_chain_phases:
|
|
- Exploitation
|
|
message: The Telegram application has been identified enumerating local groups on
|
|
$ComputerName$ by $user$.
|
|
mitre_attack_id:
|
|
- T1087
|
|
observable:
|
|
- name: user
|
|
type: User
|
|
role:
|
|
- Victim
|
|
- name: ComputerName
|
|
type: Hostname
|
|
role:
|
|
- Victim
|
|
product:
|
|
- Splunk Enterprise
|
|
- Splunk Enterprise Security
|
|
- Splunk Cloud
|
|
required_fields:
|
|
- _time
|
|
- ComputerName
|
|
- EventCode
|
|
- Process_Name
|
|
- Process_ID
|
|
- Account_Name
|
|
- Account_Domain
|
|
- Logon_ID
|
|
- Security_ID
|
|
- Message
|
|
risk_score: 80
|
|
security_domain: endpoint
|
|
asset_type: Endpoint
|