Provided by Aanval (Snort & Syslog Intrusion Detection and Correlation Engine) www.aanval.com
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GEN:SID | 1:616 |
Message | SCAN ident version request |
Summary | This event is generated when a scan is detected. |
Impact | Information gathering. |
Detailed Information | 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. |
Affected Systems | Any host. |
Attack Scenarios | An attacker can determine if ports 21 and 20 are being used for FTP. Then the attacker might find out that the FTP service is vulnerable to a particular attack and is then able to compromise the host. |
Ease of Attack | Simple. |
Corrective Action | Determine whether or not the scan was legitimate then look for other events concerning the attacking IP address. Check the host for signs of compromise. |
Additional References | |
Rule References | arachnids: 303 |
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DID:193529
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