PROTOCOL-ICMP -- Snort alerted on Internet Control Message Protocol (ICMP) traffic, which allows hosts to send error messages about interruptions in traffic. Administrators can use ICMP to perform diagnostics and troubleshooting, but the protocol can also be used by attackers to gain information on a network. This protocol is vulnerable to several attacks, and many administrators block it altogether, or block selective messages.
PROTOCOL-ICMP SolarWinds IP scan attempt
This event is generated when a scan is detected. Impact: Information gathering. Details: This event indicates that an attempt has been made to scan a host. This may be the prelude to an attack. Scanners are used to ascertain which ports a host may be listening on, whether or not the ports are filtered by a firewall and if the host is vulnerable to a particular exploit. Ease of Attack: Simple.
No information provided
No public information
Known false positives, with the described conditions
A scanner may be used in a security audit.
Cisco Talos Brian Caswell Nigel Houghton
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