EtherRAT Node.js Backdoor Execution via Headless Conhost (via process_creation)

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.007JavaScript
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects the EtherRAT backdoor launched through conhost.exe in headless mode running a bundled Node.js payload from the hidden MicrosoftSltt directory, an execution behavior observed in The Gentlemen ransomware intrusions using Ethereum smart-contract C2. Adversaries leverage the signed conhost host to run a Node.js runtime and blend malicious JavaScript execution into normal process activity.

Reporting behind it

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EtherRAT Node.js Backdoor Execution via Headless Conhost (via process_creation)

Pivot detection · T1059.007 · 9 related

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