Appendix B Signature Engines

Master Engine

Table B-1

Master Engine Parameters (continued)

 

 

 

 

 

Parameter

 

Description

Value

 

 

 

 

alert-severity

 

Specifies the severity of the alert:

high

 

 

Dangerous alert

medium

 

 

Medium-level alert

low

 

 

Low-level alert

informational (default)

 

 

Informational alert

 

 

 

 

sig-fidelity-rating

Specifies the rating of the fidelity of this signature.

0 to 100

 

 

 

 

(default = 100)

 

 

 

 

promisc-delta

 

Specifies the delta value used to determine the

0 to 30

 

 

seriousness of the alert.

(default = 5)

 

 

 

 

sig-name

 

Specifies the name of the signature.

sig-name

 

 

 

 

alert-notes

 

Provides additional information about this signature

alert-notes

 

 

that will be included in the alert message.

 

 

 

 

 

user-comments

 

Provides comments about this signature.

comments

 

 

 

 

alert-traits

 

Specifies traits you want to document about this

0 to 65335

 

 

signature.

 

 

 

 

 

release

 

Provides the release in which the signature was most

release

 

 

recently updated.

 

 

 

 

signature-creation-d

Specifies the date the signature was created.

ate

 

 

 

 

 

 

 

 

signature-type

 

Specifies the signature category.

anomaly

 

 

 

 

component

 

 

 

 

exploit

 

 

 

 

other

 

 

 

 

vulnerability

 

 

 

 

engine

 

Specifies the engine to which the signature belongs.

 

 

Note The engine-specific parameters appear under

 

 

 

 

the engine category.

 

 

 

 

 

event-count

 

Specifies the number of times an event must occur

1 to 65535

 

 

before an alert is generated.

(default = 1)

 

 

 

event-count-key

Specifies the storage type on which to count events

Axxx

 

 

for this signature:

AxBx

 

 

 

 

 

 

Attacker address

Axxb

 

 

 

 

 

 

Attacker and victim addresses

xxBx

 

 

 

 

 

 

Attacker address and victim port

AaBb

 

 

 

 

 

 

Victim address

 

 

 

Attacker and victim addresses and ports

 

 

 

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

OL-29168-01

B-5

 

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Cisco Systems IPS4510K9 manual Sig-name

IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

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The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

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