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GEN:SID | 1:467 |
Message | ICMP Nemesis v1.1 Echo |
Summary | This event is generated when an ICMP echo request is made from a host running Nemesis v1.1 software. |
Impact | Information gathering. An ICMP echo request can determine if a host is active. |
Detailed Information | An ICMP echo request is used by the ping command to elicit an ICMP echo reply from a listening live host. An echo request that originates from a host running Nemesis v1.1 software contains a unique payload in the message request. |
Affected Systems | All |
Attack Scenarios | An attacker may attempt to determine live hosts in a network prior to launching an attack. |
Ease of Attack | Simple |
Corrective Action | Block inbound ICMP echo requests. |
Additional References | http://www.whitehats.com/info/IDS449 |
Rule References | arachnids: 449 |
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DID:124453
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