Malicious React Server Component RCE via Node Web Process Spawning Shell (via process_creation)

ATT&CK techniques

Initial Access → Execution

Recon
Resource Dev
Initial Access
- T1190Exploit Public-Facing Application
Execution
- T1059.004Unix Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a Node.js or Next.js server process spawning a shell that runs reconnaissance or download commands such as whoami, curl, or wget, the exploitation pattern for the CVE-2025-55182 React2Shell flaw in React Server Components. Adversaries trigger this to gain remote code execution on internet-facing servers before dropping miners and RATs, making the web-process-to-shell chain an early signal of active exploitation.

Reporting behind it

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Malicious React Server Component RCE via Node Web Process Spawning Shell (via process_creation)

Pivot detection · T1059.004 · 9 related

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