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| GEN:SID | 1:466 |
| Message | ICMP L3retriever Ping |
| Summary | This event is generated when an ICMP echo request is made from a host running the L3 "Retriever 1.5" security scanner. |
| 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 the L3 "Retriever 1.5" security scanner 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/IDS311 |
| Rule References | arachnids: 311 |
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DID:728770
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