Cisco Cisco Firepower Management Center 4000

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34-31
FireSIGHT System User Guide
 
Chapter 34      Analyzing Malware and File Activity
  Working with Network File Trajectory
Table 34-9
Network File Trajectory Summary Information Fields 
Name
Description
File SHA256
The SHA-256 hash value of the file. 
The hash is displayed by default in a condensed format. To view the full hash value, hover your 
pointer over it. If multiple SHA-256 hash values are associated with a file name, hover your 
pointer over the link to view all of the hash values.
Click the download file icon (
) to download the file to your local computer. If prompted, 
confirm you want to download the file. Follow your browser’s prompts to save the file. If the file 
is unavailable for download, this icon is grayed out.
Caution
Cisco strongly recommends you do not download malware, as it can cause adverse 
consequences. Exercise caution when downloading any file, as it may contain malware. 
Ensure you have taken any necessary precautions to secure the download destination 
before downloading files.
File Names
The names of the file associated with the event, as seen on the network. 
If multiple file names are associated with a SHA-256 hash value, the most recent detected file 
name is listed. You can expand this to view the remaining file names by clicking 
more
File Type
The file type of the file, for example, 
HTML
 or 
MSEXE
.
File Category
The general categories of file type, for example, 
Office Documents
 or 
System Files
.
Parent Application
The client application accessing the malware file when detection occurred. These applications are 
not tied to network discovery or application control.
This field only appears for endpoint-based malware events.
First Seen
The first time a managed device or FireAMP Connector detected the file, and the IP address of the 
host that first uploaded the file.
Last Seen
The most recent time a managed device or FireAMP Connector detected the file, and the IP address 
of the host that last downloaded the file.
Event Count
The number of events seen on the network associated with the file, and the number of events 
displayed in the map if there are more than 250 detected events.
Seen On
The number of hosts that either sent or received the file. Because one host can upload and 
download a file at different times, the total number of hosts may not match the total number of 
senders plus the total number of receivers in the 
Seen On Breakdown
 field.
Seen On Breakdown
The number of hosts that sent the file, followed by the number of hosts that received the file.