GEN:SID 1:2950
Message NETBIOS SMB too many stacked requests
Summary This event is generated when multiple stacked SMB requests are made.
Impact Possible IDS evasion.
Detailed Information This event is generated when multiple stacked SMB requests are detected.
This behavior does not occur on a regular basis in normal network
traffic. This event may indicate an attempt to evade an IDS.
Affected Systems All systems using SMB.
Attack Scenarios An attacker might create multiple stacked SMB requests in an attempt to
bypass an IDS.
Ease of Attack Simple.
Corrective Action Apply the appropriate vendor supplied patches

Disallow the use of SMB.
Additional References