Elastic Security Detection Rules

Halfbaked Command and Control Beacon

Last updated 7 months ago on 2025-01-15
Created 5 years ago on 2020-07-06

About

Halfbaked is a malware family used to establish persistence in a contested network. This rule detects a network activity algorithm leveraged by Halfbaked implant beacons for command and control.
Tags
Use Case: Threat DetectionTactic: Command and ControlDomain: EndpointLanguage: lucene
Severity
high
Risk Score
73
MITRE ATT&CK™

Command and Control (TA0011)(opens in a new tab or window)

↳ Application Layer Protocol (T1071)(opens in a new tab or window)

↳ Dynamic Resolution (T1568)(opens in a new tab or window)

False Positive Examples
This rule should be tailored to exclude systems, either as sources or destinations, in which this behavior is expected.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
packetbeat-*auditbeat-*filebeat-*logs-network_traffic.*
Related Integrations

network_traffic(opens in a new tab or window)

Query
(event.dataset: (network_traffic.tls OR network_traffic.http) OR
  (event.category: (network OR network_traffic) AND network.protocol: http)) AND
  network.transport:tcp AND url.full:/http:\/\/[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}\/cd/ AND
  destination.port:(53 OR 80 OR 8080 OR 443)

Install detection rules in Elastic Security

Detect Halfbaked Command and Control Beacon in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).