226.txt

来自「This is the snapshot of Snot Latest Rule」· 文本 代码 · 共 56 行

Rule:
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Sid:
226

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Summary:
This event indicates that a Stacheldraht handler exists on the source host and an agent on the destination host.

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Impact:
Serious. A Distributed Denial of Service attack maybe in progress.

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Detailed Information:
The Stacheldraht DDoS uses a tiered structure of compromised hosts to coordinate and participate in a denial of service attack.  There are "handler" hosts that are used to coordinate the attacks and "agent" hosts that launch the attack.  When a host becomes a Stacheldraht agent it makes an initial contact with each of its known handlers.  A handler should respond with an ICMP echo reply with an ICMP identification number of 667 and a string of "ficken" in the payload. 

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Affected Systems:
Any Stacheldraht compromised host.

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Attack Scenarios:
A host on which a Stacheldraht agent has been installed attempts to contact the list of known handlers.

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Ease of Attack:
Simple. Stacheldraht code is freely available.

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False Positives:
None Known.

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False Negatives:
None Known.

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Corrective Action:
Turn of all unnecessary services on hosts.

Upgrade to the latest patch level.

Use a packet filtering firewall to block inappropriate traffic to the network to prevent hosts from being compromised.

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Contributors:
Original rule written by Max Vision <[e-mail]>
Sourcefire Vulnerability Research Team
Judy Novak <[e-mail]>

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Additional References:

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