Elastic Security Detection Rules

OpenSSL Password Hash Generation

Last updated 9 days ago on 2025-01-22
Created 15 days ago on 2025-01-16

About

This rule detects the usage of the `openssl` binary to generate password hashes on Linux systems. The `openssl` command is a cryptographic utility that can be used to generate password hashes. Attackers may use `openssl` to generate password hashes for new user accounts or to change the password of existing accounts, which can be leveraged to maintain persistence on a Linux system.
Tags
Domain: EndpointOS: LinuxUse Case: Threat DetectionTactic: PersistenceData Source: Elastic EndgameData Source: Elastic DefendData Source: Auditd ManagerData Source: CrowdstrikeData Source: SentinelOneLanguage: eql
Severity
low
Risk Score
21
MITRE ATT&CK™

Persistence (TA0003)(opens in a new tab or window)

↳ Create Account (T1136)(opens in a new tab or window)

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
logs-endpoint.events.process*endgame-*auditbeat-*logs-auditd_manager.auditd-*logs-crowdstrike.fdr*logs-sentinel_one_cloud_funnel.*
Related Integrations

endpoint(opens in a new tab or window)

auditd_manager(opens in a new tab or window)

crowdstrike(opens in a new tab or window)

sentinel_one_cloud_funnel(opens in a new tab or window)

Query
process where host.os.type == "linux" and event.type == "start" and
event.action in ("exec", "exec_event", "start", "ProcessRollup2", "executed") and process.name == "openssl"
and process.args == "passwd"

Install detection rules in Elastic Security

Detect OpenSSL Password Hash Generation 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).