Create an APP Signature for Forcepoint

[Banco_CHN]

Hi, i want to create an app signature for our Forcepoint Web Proxy and i have been trying to create the signature but I get the same error:

F-SBID( --name "Forcepoint-Forcepoint.Cloud"; --pattern "webdefence.global.blackspider.com)"; --service HTTP; --service HTTPS --protocol tcp; --protocol udp;)

[ede_pfau]

Which error?

Is the closing paranthesis in the pattern by design or an oversight?

[Banco_CHN]

It is an oversight, this is the correct one

F-SBID( --name "Forcepoint-Forcepoint.Cloud"; --pattern "webdefence.global.blackspider.com"; --service HTTP; --service HTTPS; --protocol tcp; --protocol udp; )

The error i get is: "Failed to save changes"

[ede_pfau]

So you've got a syntax error.

[Banco_CHN]

I even tried to summarize it

F-SBID( --name "Forcepoint-Forcepoint.Proxy"; --pattern "webdefence.global.blackspider.com"; --service Back_office; )

[ede_pfau]

Yes, I would def. use the CLI for this.

Maybe you should add the direction of flow, as "--flow from_server". But this will not prevent the syntax error.

Start with the most basic parameters, like the name. If that goes through, all the other parts one by one, until you encounter an error.

[ede_pfau · Accepted solution]

As an example:

edit "OpenSSL.TLS.Heartbeat.Information.Disclosure-custom.All.20443"
set action block
set comment 'SSL on port 20443'
set signature "F-SBID( --attack_id 4983 \
--name \"OpenSSL.TLS.Heartbeat.Information.Disclosure-custom.All\"; \
--protocol tcp; --src_port 20443; --flow from_server,reversed; \
--pattern \"|18 03|\"; --context packet; --within 2,context; \
--byte_test 2,>,100,1,relative; )"
next

and more in this KB article:

https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-configure-custom-IPS-signature-for-...

[Banco_CHN]

I tried over the GUI, i should try on CLI