Update enumerate_users_local_group_using_telegram.yml

This commit is contained in:
Michael Haag
2021-05-19 06:53:27 -06:00
committed by GitHub
parent 92f3aeb596
commit 5e2516e854
@@ -6,19 +6,20 @@ author: Teoderick Contreras, Splunk
type: batch
datamodel:
- Endpoint
description: this search is to detect a suspicious telegram process that enumerate
all network user in a local group. This technique was seen in monero infected honeypot
to mapped all the users in the compromised machine
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
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