Rule:

--
Sid:
532

--
Summary:
This event is generated when an attempt is made to access an administrative share on a Windows machine.

--
Impact:
Serious. Possible administrator access on the victim machine. 

--
Detailed Information:
This rule  generates an event when the hidden Netbios share Admin$, which is the Winnt directory, is accessed via SMB. 

This is a poor security practice or an indication that a machine is being accessed remotely. 

--
Affected Systems:
	Windows 9x
	Windows 2000
	Windows XP

--
Attack Scenario:
This can be accessed from GUI "map network drive" remotely 

--
Ease of Attack:
Simple

--
False Positives:
None known.

--
False Negatives:
None known.

--
Corrective Action:
Use a packet filtering firewall to disallow Netbios access from the unprotected network.

--
Contributors:
Original Rule Writer Unknown
Sourcefire Research Team
Nigel Houghton <nigel.houghton@sourcefire.com>
Snort documentation contributed by Jake Babbin 

--
References:

arachnids 340 

--
