| GEN:SID | 1:384 |
| Message | ICMP PING |
| Summary | This event is generated when an generic ICMP echo request is made.
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| Impact | Information gathering. An ICMP echo request can determine if a host is active.
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| Detailed Information | An ICMP echo request is used by the ping command to elicit an ICMP echo reply from a listening live host. This rule alerts on a generic ICMP request where no payload is included in the message or the payload does not match more specific rules.
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| Affected Systems | All
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| Attack Scenarios | An attacker may attempt to determine live hosts in a network prior to launching an attack.
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| Ease of Attack | Simple
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| Corrective Action | Block inbound ICMP echo requests.
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| Additional References | |