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Rule:
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Sid:
1067
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Summary:
This event is generated when the NET command is used for message sending, remote null session connections etc.
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Impact:
Information gathering.
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Detailed Information:
An attacker tried to access the "net" command on a host.
The Windows "net" command is usually not accessible through a webserver, check for possible directory traversal attacks.
Net cannot be used to gain full control of a host, but can establish null sessions on weakly protected Windows hosts for example or to gain information on the network the host is connected to.
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Attack Scenarios:
A web request for the command "net".
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Ease of Attack:
Simple.
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False Positives:
A valid URL request containing the string "net.exe" can generate an event.
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False Negatives:
None known.
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Corrective Action:
Protect "net.exe" from remote usage. Remove the file completly if it is
not needed.
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Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>
Snort documentation contributed by Ueli Kistler, <u.kistler@engagesecurity.com>
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Additional References:
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