Alert (2)

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What happens after a NIDS detects an attack?
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'''Alert'''
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After a NIDS detects an attack. An Alert is given. Alerts can be generated on real-time or run-time basis.
'''Reconfigure firewall'''
'''Reconfigure firewall'''
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        Configure the firewall to filter out the IP address of the intruder. However, this still allows the intruder to attack from other addresses. Checkpoint firewall's support a "Suspicious Activity Monitoring Protocol (SAMP)" for configuring firewalls. Checkpoint has their "OPSEC" standard for re-configuring firewalls to block the offending IP address.  
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Configure the firewall to filter out the IP address of the intruder. However, this still allows the intruder to attack from other addresses. Checkpoint firewall's support a "Suspicious Activity Monitoring Protocol (SAMP)" for configuring firewalls. Checkpoint has their "OPSEC" standard for re-configuring firewalls to block the offending IP address.  
'''chime'''
'''chime'''
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        Beep or play a .WAV file. For example, you might hear a recording "You are under attack".  
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Beep or play a .WAV file. For example, you might hear a recording "You are under attack".  
'''SNMP Trap'''
'''SNMP Trap'''
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        Send an SNMP Trap datagram to a management console like HP OpenView, Tivoli, Cabletron Spectrum, etc.  
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Send an SNMP Trap datagram to a management console like HP OpenView, Tivoli, Cabletron Spectrum, etc.  
'''NT Event'''
'''NT Event'''
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        Send an event to the WinNT event log.  
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Send an event to the WinNT event log.  
'''syslog'''
'''syslog'''
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        Send an event to the UNIX syslog event system.  
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Send an event to the UNIX syslog event system.  
'''send e-mail'''
'''send e-mail'''
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        Send e-mail to an administrator to notify of the attack.
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Send e-mail to an administrator to notify of the attack.
'''page'''
'''page'''
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        Page (using normal pagers) the system administrator.  
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Page (using normal pagers) the system administrator.  
'''Log the attack'''
'''Log the attack'''
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        Save the attack information (timestamp, intruder IP address, victim IP address/port, protocol information).  
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Save the attack information (timestamp, intruder IP address, victim IP address/port, protocol information).  
'''Save evidence'''
'''Save evidence'''
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        Save a tracefile of the raw packets for later analysis.  
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Save a tracefile of the raw packets for later analysis.  
'''Launch program'''
'''Launch program'''
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        Launch a separate program to handle the event.  
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Launch a separate program to handle the event.  
'''Terminate the TCP session'''
'''Terminate the TCP session'''
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        Forge a TCP FIN packet to force a connection to terminate.
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Forge a TCP FIN packet to force a connection to terminate.

Current revision as of 02:32, 24 March 2008

Alert

After a NIDS detects an attack. An Alert is given. Alerts can be generated on real-time or run-time basis.

Reconfigure firewall Configure the firewall to filter out the IP address of the intruder. However, this still allows the intruder to attack from other addresses. Checkpoint firewall's support a "Suspicious Activity Monitoring Protocol (SAMP)" for configuring firewalls. Checkpoint has their "OPSEC" standard for re-configuring firewalls to block the offending IP address.

chime Beep or play a .WAV file. For example, you might hear a recording "You are under attack".

SNMP Trap Send an SNMP Trap datagram to a management console like HP OpenView, Tivoli, Cabletron Spectrum, etc.

NT Event Send an event to the WinNT event log.

syslog Send an event to the UNIX syslog event system.

send e-mail Send e-mail to an administrator to notify of the attack.

page Page (using normal pagers) the system administrator.

Log the attack Save the attack information (timestamp, intruder IP address, victim IP address/port, protocol information).

Save evidence Save a tracefile of the raw packets for later analysis.

Launch program Launch a separate program to handle the event.

Terminate the TCP session Forge a TCP FIN packet to force a connection to terminate.

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