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Palo Alto ‘da Threats, Spyware, ve Anti-Virus için Risk Seviyeleri Nasıl Belirlenir?

Aşağıda threats, spyware, ve anti-virus için risk seviyesini belirlemek için kullanılan tablo bulunmaktadır. Bu tablo aracılığı ile risk seviyelerini hesaplayabilirsiniz. Orijinal yapısı bozulmaması için olduğu gibi sunuyorum.


Technology Description
network-protocol An application that is generally used for system to system communication that facilitates network operation.  This includes most of the IP protocols.
client-server An application that uses a client-server model where one or more clients communicate with a server in the network.
peer-to-peer An application that communicates directly with other clients to transfer information instead of relying on a central server to facilitate the communication.
browser-based An application that relies on a web browser to function.



Characteristic Description
Capable of File Transfer Likely has more than 1,000,000 users.  Has the capability to transfer a file from one system to another over a network.  A streaming app that has no other mechanism to transfer files other than the video or audio streaming should not be flagged as able to transfer files.
Used by Malware Malware has been known to use the app for propagation, attack, or data theft, or is distributed with malware.
Excessive Bandwidth Use Consumes at least 1 Mbps on a regular basis through normal use.
Evasive Uses a port or protocol for something other than its originally intended purpose with the hope that it will traverse a firewall.
Pervasive Likely has more than 1,000,000 users.
Known Vulnerabilities Has publicly reported vulnerability.  For web-based apps, it should also be set to yes, as HTTP always has vulnerability.
Prone to Misuse Often used for nefarious purposes or is easily setup to  expose more than the user intended.
Tunnels Other Apps Is able to transport other applications inside its protocol.
File-type ident Should be set if app can upload or download a file-type over a decodable protocol (e.g. http).
Spyware-ident Should be set if the app can upload or download an executable file over a decodable protocol.
Virus-ident Same as spyware ident.
Vulnerability-ident For web-based apps, the vulnerability-ident should always be yes, since they are http and http always has some vulnerabilities.
deny-action For web-based apps,deny-action should be set to drop-reset (unless there is some issues with the app receiving tcp-reset).


Risk Calculation



Characteristic Factor
Evasive 3
Excessive Bandwidth Use 1
Used by Malware 4
Capable of File Transfer 3
Known Vulnerabilities 3
Tunnels Other Apps 2
Prone to Misuse 2
Pervasive 1
Total 19


Risk Assignment


Risk Range
1 0–3
2 4–6
3 7–9
4 10–13
5 14+

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