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NBSS.Invalid.Fragment

Release Date Nov 01, 2006
Severity low
Impact May prevent an attack from being detected.
Description This signature indicates an NBSS protocol anomaly. A data fragment was used in some Netbios Session Service command where a fragment is not allowed. This normally indicates an attempt to evade detection while launching an attack.
Affected Products N/A
Recommended Actions This indicates detection of traffic that does not comply with the protocol standard. Monitor the traffic from that network for any suspicious activity.
Coverage IPS VCM