Malicious Marimo Notebook Credential File Access via Shell (via process_creation)

ATT&CK techniques

Initial Access → Cred Access

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1552.001Credentials In Files
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a Marimo notebook process spawning a shell that reads environment and deployment credential files on Linux hosts. Attackers exploiting the Marimo terminal remote code execution vulnerability harvested env docker-compose and celerybeat schedule files to steal secrets. A notebook engine reading these credential bearing files indicates post exploitation credential theft.

Reporting behind it

Related detections9 linkedT1190 — drag to rearrange

Malicious Keyhunter Worker Persistence via Systemd Service

Malicious Ingress-nginx Configuration Injection via Kubernetes Audit (via kubernetes)

Malicious SharePoint ToolShell Post-Exploitation via Encoded PowerShell (via process_creation)

Malicious Web Shell Written to SharePoint LAYOUTS Directory by Worker Process (via file_event)

Malicious MS-SQL Server Spawning Command Shell via Mallox

Malicious ActiveMQ CVE-2023-46604 Payload Download via curl or wget

Malicious WordPress Core SQL Injection Scanner via User-Agent

Suspicious TruffleHog Execution Spawned by Bun Runtime via Process Creation

Malicious AWS Credential Exfiltration via Curl or Wget in Process Creation

Malicious Marimo Notebook Credential File Access via Shell (via process_creation)

Pivot detection · T1190 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

Full detection rule

Unlock this rule to view and copy it

The detection logic is included with a plan. Everything else — context, mappings and implementation details — stays free on this page.

Sign in for 3 free unlocks

Signing in gives you 3 unlocks to spend on any rule in the library. No card, and they do not expire.

Also included

Unlocked rules convert on this page — to Splunk SPL or Splunk — Raw Index SPL or Microsoft Sentinel KQL or Microsoft Sentinel ASIM ASIM KQL or Microsoft Defender XDR KQL or Elastic Security KQL or Elastic Security Lucene or Elastic Security ES|QL or CrowdStrike Falcon CQL or SentinelOne PowerQuery or Palo Alto Cortex XDR XQL or Carbon Black Cloud Platform Search or Carbon Black EDR Process Search or Google Security Operations UDM Search or IBM QRadar AQL or Sumo Logic Cloud SIEM Rules expression or Rapid7 InsightIDR LEQL or Graylog Search or OpenSearch Lucene or OpenSearch PPL PPL or Grafana Loki LogQL or SQLite SQL or Zircolite SQLite — with the log-source profile the engine picked, the field map it used, and everything it could not express. Converting a rule you have unlocked costs no further credit.

See it run on a free rule →Convert your own rule →