Elastic Security Detection Rules

Interactive Terminal Spawned via Perl

Last updated 5 months ago on 2025-01-15
Created 5 years ago on 2020-04-16

About

Identifies when a terminal (tty) is spawned via Perl. Attackers may upgrade a simple reverse shell to a fully interactive tty after obtaining initial access to a host.
Tags
Domain: EndpointOS: LinuxUse Case: Threat DetectionTactic: ExecutionData Source: Elastic EndgameData Source: Elastic DefendLanguage: kuery
Severity
high
Risk Score
73
MITRE ATT&CK™

Execution (TA0002)(opens in a new tab or window)

↳ Command and Scripting Interpreter (T1059)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
auditbeat-*logs-endpoint.events.*endgame-*
Related Integrations

endpoint(opens in a new tab or window)

Query
event.category:process and host.os.type:linux and event.type:(start or process_started) and process.name:perl and
  process.args:("exec \"/bin/sh\";" or "exec \"/bin/dash\";" or "exec \"/bin/bash\";")

Install detection rules in Elastic Security

Detect Interactive Terminal Spawned via Perl 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).