Custom Signature Help

Announcements

ATTENTION Customers, All Partners and Employees: The Customer Support Portal (CSP) will be undergoing maintenance and unavailable on Saturday, November 7, 2020, from 11 am to 11 pm PST. Please read our blog for more information.

Reply
Highlighted
L0 Member

Custom Signature Help

Hi, 

 

I'm attempting to create an application signature to detect Amazon AWS backups. I captured SSL client hello packets to get the the below hex for the pattern match, but signature is not fireing. 

 

Packet,

Amazon_TLS.PNG 

 

Hex value,

/x 3531333438623763302d646432372d313164662d393337622d3038303032303063396136362e73332e616d617a6f6e6177732e636f6d /x

 

Signature condition match,

Amazon_sig.PNG


Accepted Solutions
Highlighted
L0 Member

Looks like my issue was due to spaces on the hex indicators and I was using /x instead of \x. It worked after modifying the pattern match to the below,

 

\x3531333438623763302d646432372d313164662d393337622d3038303032303063396136362e73332e616d617a6f6e6177732e636f6d\x

 

 

View solution in original post


All Replies
Highlighted
L5 Sessionator

Hello,

 

does it work when you chop it up in smaller pieces?

 

Best regards,
Luciano

Highlighted
L0 Member

Looks like my issue was due to spaces on the hex indicators and I was using /x instead of \x. It worked after modifying the pattern match to the below,

 

\x3531333438623763302d646432372d313164662d393337622d3038303032303063396136362e73332e616d617a6f6e6177732e636f6d\x

 

 

View solution in original post

Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the Live Community as a whole!

The Live Community thanks you for your participation!