Log4Shell Scanning Detected

Classification:

attack

Tactic:

TA0001-initial-access

Technique:

T1190-exploit-public-facing-application

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Goal

Detect when a Log4j scanning attempt occurs in your environment.

Strategy

Regex search on logs to find specific payloads indicative of Log4j scanning.

Triage and response

  1. Investigate if the host is running a vulnerable version of the Log4j Java library
  2. Use the Log4j Investigation Dashboard to conduct impact analysis
  3. Explore what other services the attacker hit in the last day - Linked to investigation query
  4. Explore Java logs associated with the attacker - linked to investigation query