Cisco Cisco Firepower Management Center 4000 Guía Del Desarrollador

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Sourcefire 3D System eStreamer Integration Guide
155
Understanding Intrusion and Correlation Data Structures
Understanding Series 2 Data Blocks
Chapter 3
String Block 
Length
uint32
The number of bytes included in the name 
String data block, including eight bytes for the 
block type and header fields plus the number 
of bytes in the Attack Scenarios field.
Attack 
Scenarios
string
Examples of possible attacks.
String Block 
Type
uint32
Initiates a String data block containing the 
ease of attack associated with the rule. This 
value is always 0.
String Block 
Length
uint32
The number of bytes included in the name 
String data block, including eight bytes for the 
block type and header fields plus the number 
of bytes in the Ease of Attack field.
Ease of Attack
string
Whether the attack is considered simple, 
medium, hard, or difficult, and whether or not 
is can be performed using a script.
String Block 
Type
uint32
Initiates a String data block containing the 
possible false positives associated with the 
rule. This value is always 0.
String Block 
Length
uint32
The number of bytes included in the name 
String data block, including eight bytes for the 
block type and header fields plus the number 
of bytes in the False Positives field.
False Positives
string
Examples that may result in a false positive. 
The default value is 
None Known
.
String Block 
Type
uint32
Initiates a String data block containing the 
possible false negatives associated with the 
rule. This value is always 0.
String Block 
Length
uint32
The number of bytes included in the name 
String data block, including eight bytes for the 
block type and header fields plus the number 
of bytes in the False Negatives field.
False Negatives
string
Examples that may result in a false negative. 
The default value is 
None Known
.
String Block 
Type
uint32
Initiates a String data block containing the 
corrective action associated with the rule. This 
value is always 0.
Rule Documentation Data Block Fields (Continued)
F
IELD
D
ATA
 T
YPE
D
ESCRIPTION