Suspicious masscan Scanning Docker API Port 2375

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1046Network Service Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects masscan being launched with port 2375 as a target which the Dero miner worm uses to discover exposed unauthenticated Docker Engine APIs for propagation. Finding open 2375 endpoints is the first step in the container cryptojacking spread. A masscan invocation aimed at the Docker daemon port on an infected host indicates active worming.

Reporting behind it

Related detections9 linkedT1046 — drag to rearrange

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Suspicious Internet Scanning for Docker and Kubelet Ports via masscan

Suspicious Fscan Internal Network Scanner Execution (via process_creation)

Possible Network Service Scanning via Nmap or Masscan (via process_creation)

Malicious Anonymous Login - Domain Specified (via security)

Suspicious Network Scanning Tool Execution

Malicious RDP Discovery Performed on Multiple Hosts (via rdp)

Malicious Anonymous Access Performed to Multiple Targets (via security)

Suspicious masscan Scanning Docker API Port 2375

Pivot detection · T1046 · 9 related

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