1200KM / sigma-rule
Suspicious Named Error — Sigma Rule
Sigma rule c8e35e96-19ce-4f16-aeb6-fd5588dc5365. Suspicious Named Error — Sigma Rule. Detects suspicious DNS error messages that indicate a fatal or suspicious error that could be caused by exploiting attempts
Rule metadata and linked tags
Author: Florian Roth (Nextron Systems). Source status: test; severity: high. Source dates: 2018-02-20 / 2022-10-05.
{
"product": "linux",
"service": "syslog"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 5b6242df3e3343be5b0822071a015f66bfbef2efa39930b29546b92fc66bd59b
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
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
references:
- https://github.com/ossec/ossec-hids/blob/1ecffb1b884607cb12e619f9ab3c04f530801083/etc/rules/named_rules.xml
author: Florian Roth (Nextron Systems)
date: 2018-02-20
modified: 2022-10-05
tags:
- attack.initial-access
- attack.t1190
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
False positives
- Unknown
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.