480.txt

snort入侵检测规则文件2.4 Snort是众所周知的网络入侵检测工具

Rule:

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Sid:
480

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Summary:
This event is generated when a benevolent ping used by SpeedEra.net to
find the closest cache to a host is detected.

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Impact:
Unknown.

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Detailed Information:
After visiting certain speedera.net sites, several pings will be
received by the host. These pings are sent so that speedera can find the
closest cache to the host. This rule is intended to distinguish the
usually benevolent speedera pings from normal, possibly malevolent pings.

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Affected Systems:
	All systems
 
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Attack Scenarios:
This is not really an attack.  However an attacker could disguise their
pings as speedera pings, but this is unlikely.

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Ease of Attack:
Simple.

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False Positives:
None Known

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False Negatives:
None Known

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Corrective Action:
None required.

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Contributors:
Original rule writer unknown
Snort documentation contributed by Drew Hintz ( http://guh.nu )
Sourcefire Vulnerability Research Team
Nigel Houghton <[e-mail]>

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Additional References:

Linux Security:
http://www.linuxsecurity.com/articles/firewalls_article-2064.html

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