ICMP_DDOS TFN server response

 

Code: p400

Severity: Warning

 

Description: This event is generated when a Tribe Flood Network (TFN) Distributed Denial of Service (DDoS) daemon responds to a client request to spawn a shell.

Impact: Attempted DDoS. If the listed source IP is in your network, it may be a TFN daemon. If the listed destination IP is in your network, it may be a TFN client.

Corrective: Perform proper forensic analysis on the suspected compromised host to discover the means of compromise. Rebuild a confirmed compromised host. Use a packet-filtering firewall to block inappropriate traffic to the network to prevent hosts from being compromised.