Trojan-DDoS.9 is a fake threat that was issued by a rogue program Security Central. The full message reads:

Security Central
Threat Found
Alert
Object:
SYSTEM\ControlSet001\Control\SafeBoot\Network
Comment:
Attack from: 111.90.181.116, port 47333
Attacked port: 10631
Threat: Trojan-DDoS.9

Alias: -

Damage Level: Low

Systems Affected: Windows

Screenshot

trojan-ddos-9