GEN:SID 1:709
Message TELNET 4Dgifts SGI account attempt
Summary This event is generated after an attempted login to a telnet server
using the username 4Dgifts.
Impact Unauthorized remote access.
Detailed Information This event is generated when an attempt is made to login to a server
using the username 4Dgifts via Telnet. This is a default account on some
SGI based machines. The password may also be 4Dgifts or it may not have
a password assigned.

Repeated events from this rule may indicate a determined effort to guess
the password for this account.
Affected Systems SGI Telnet servers.
Attack Scenarios An attacker may attempt to connect to a telnet server using the username
4Dgifts.
Ease of Attack Simple
Corrective Action Disable the 4Dgifts account.

Use ssh as an alternative to Telnet

Block inbound telnet access if it is not required.
Additional References  
Rule References cve: 1999-0501
nessus: 11243