Nasreddine Bencherchali
21 lines
582 B
YAML
21 lines
582 B
YAML
title: High DNS Bytes Out
|
|
id: 0f6c1bf5-70a5-4963-aef9-aab1eefb50bd
|
|
status: unsupported
|
|
description: High DNS queries bytes amount from host per short period of time
|
|
author: Daniil Yugoslavskiy, oscd.community
|
|
date: 2019/10/24
|
|
modified: 2023/03/24
|
|
tags:
|
|
- attack.exfiltration
|
|
- attack.t1048.003
|
|
logsource:
|
|
category: dns
|
|
detection:
|
|
selection:
|
|
query: '*'
|
|
timeframe: 1m
|
|
condition: selection | sum(question_length) by src_ip > 300000
|
|
falsepositives:
|
|
- Legitimate high DNS bytes out rate to domain name which should be added to whitelist
|
|
level: medium
|