Classification:

attack

Tactic:

TA0043-reconnaissance

Technique:

T1595-active-scanning

VIEW RULE IN DATADOG VIEW SIGNALS

Goal

Detect database connections from IP addresses that are identified as malicious. Network access to database servers should be restricted.

Strategy

This rule monitors logs from PostgreSQL to detect when a connection originates from an IP identified as malicious. Datadog enriches all ingested logs with threat intelligence in real time.

A High signal is generated if the connection resulted in a successful login. A Low signal is generated if there was no login attempt or the login attempt failed.

Triage and response

1. Determine if the user {{ @db.user }} is expected to authenticate from the IP {{ @network.client.ip }}.
2. Restrict network access to the database. Remove any public access.
3. If the login was successful review database logs for suspicious actions taken by the user {{ @db.user }}.
4. Rotate credentials for the affected account.