diff --git a/detections/endpoint/enumerate_users_local_group_using_telegram.yml b/detections/endpoint/enumerate_users_local_group_using_telegram.yml index c757b28cb2..58eef291c3 100644 --- a/detections/endpoint/enumerate_users_local_group_using_telegram.yml +++ b/detections/endpoint/enumerate_users_local_group_using_telegram.yml @@ -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