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Rule:

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Sid:
2271

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Summary:
This event is generated when an attacker attempts to connect to the
trojan FsSniffer.

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Impact:
Possible theft of data and control of the targeted machine leading to a
compromise of all resources the machine is connected to.

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Detailed Information:
The FsSniffer program is a Trojan Horse designed to allow unauthorized
external access to an infected host.

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Affected Systems:

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Attack Scenarios:
This Trojan may be delivered to the target in a number of ways. This
event is indicative of an existing infection being activated. Initial
compromise may be due to the exploitation of another vulnerability and
the attacker is leaving another way into the machine for further use.

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Ease of Attack:
This is Trojan activity, the target machine may already be compromised.

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False Positives:
Security tool probing for netbus

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False Negatives:
None Known

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Corrective Action:
Delete the Trojan and kill any associated processes.

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Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>

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Additional References:

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