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blue-team-tools/rules/linux/other/lnx_susp_named.yml
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2021-11-27 11:33:14 +01:00

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title: Suspicious Named Error
id: c8e35e96-19ce-4f16-aeb6-fd5588dc5365
status: test
description: Detects suspicious DNS error messages that indicate a fatal or suspicious error that could be caused by exploiting attempts
author: Florian Roth
references:
- https://github.com/ossec/ossec-hids/blob/master/etc/rules/named_rules.xml
date: 2018/02/20
modified: 2021/11/27
logsource:
product: linux
service: syslog
detection:
keywords:
- '* dropping source port zero packet from *'
- '* denied AXFR from *'
- '* exiting (due to fatal error)*'
condition: keywords
falsepositives:
- Unknown
level: high
tags:
- attack.initial_access
- attack.t1190