Custom attack signature syntax for multiple user agents

[Jonathan_c]

Hi,

I want to create a custom attack signature that will block requests that contains specific user agents.

I've already created a signature that blocks Python user agent, but I'm not sure how to add multiple ones to the same signature.

Under "Rule" section, I use the Simple Edit Mode and I have set:
Matched Element: Header
Matched Criteria: Matches regular expression
Keyword: User-Agent:.*[Pp]ython.*

How do I add more user agents?

Thanks

[JRahm]

Hi @Jonathan_c, if you use a regular expression you can match any number of strings and in case-insensitive manner.  You can check out a couple examples for guidance:

• Mitigating Remote Code Execution
• https://community.f5.com/t5/technical-forum/asm-provided-signatures-rules-text/m-p/217674#M201368