Suspicious Miasma npm Credential Exfiltration via Google API Client User Agent (via proxy)

ATT&CK techniques

Cred Access → Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1552.007Container API
Discovery
Lateral Movement
Collection
C2
Exfiltration
- T1567Exfiltration Over Web Service
Impact

What it detects

This rule detects the exact Google API Node.js client user agent string used by the Miasma supply-chain payload in the @redhat-cloud-services npm compromise to exfiltrate harvested developer and cloud credentials. Matching this specific version triplet where Google client libraries are not expected suggests the obfuscated index.js exfiltration routine has run.

Reporting behind it

Related detections9 linkedT1567 — drag to rearrange

Suspicious Python-Requests Exfiltration to Webhook.site (s1ngularity Aftermath)

Malicious Network Sniffing of Pod Identity Endpoint via tcpdump

Suspicious Helm Tiller Unauthenticated Access on Port 44134

Malicious prt-scan Campaign Exfiltration Script prt_exfil.sh (via file_event)

Malicious TeamPCP durabletask C2 git-service and m-kosche (via dns_query)

Malicious Mini Shai-Hulud SAP npm Telemetry Exfiltration C2 (via dns_query)

Suspicious AWS API Activity From WinSCP Client User-Agent

Malicious MOVEit Transfer Web Shell X-siLock-Comment Header (via webserver)

Suspicious Discord Webhook Exfiltration via HTTP (via proxy)

Suspicious Miasma npm Credential Exfiltration via Google API Client User Agent (via proxy)

Pivot detection · T1567 · 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 →