[Snort-sigs] SHELLCODE x86 NOOP (NOP Sled) Sid: 648

David Schedler david.schedler at ...3286...
Mon Jan 8 12:38:52 EST 2007

Rule:  SHELLCODE x86 NOOP (NOP Sled)
Sid: 648
Summary: When I use MS Enterprise Manager from inside my network to
connect to a remote DB outside of my network (via internet) SNORT
attempts to block the remote DB's IP address.
Impact: Other web services, servers, and programs attempting to access
the DB at the same IP address are blocked from accessing the DB.
Detailed Information: We used Snort all weekend, with IIS servers having
no problem accessing a remote DB.  When I arrived at work at 7:30 AM and
started Enterprise Manager the IP address to the DB was blocked.
Affected Systems:
Attack Scenarios:
Ease of Attack:
False Positives:  Using Enterprise Manager creates NOPs
False Negatives:
Corrective Action: Added the DB's IP address to white list.  The DB is
the only resource at that IP address.
Additional References:



David Schedler

Trinity Real Estate Solutions, Inc.


972-865-0219 (fax)



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