Custom Signature Pattern Requirements
Table of Contents
Expand all | Collapse all
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- About Custom Application Signatures
- Create a Custom Application Signature
- Create a Custom L3 & L4 Vulnerability Signature
- Test a Custom Signature
- Custom Signature Pattern Requirements
- Testing Pattern Performance Impact
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- dhcp-req-chaddr
- dhcp-req-ciaddr
- dhcp-rsp-chaddr
- dhcp-rsp-ciaddr
- dns-req-addition-section
- dns-req-answer-section
- dns-req-authority-section
- dns-req-header
- dns-req-protocol-payload
- dns-req-section
- dns-rsp-addition-section
- dns-rsp-answer-section
- dns-rsp-authority-section
- dns-rsp-header
- dns-rsp-protocol-payload
- dns-rsp-ptr-answer-data
- dns-rsp-queries-section
- email-headers
- file-data
- file-elf-body
- file-flv-body
- file-html-body
- file-java-body
- file-mov-body
- file-office-content
- file-pdf-body
- file-riff-body
- file-swf-body
- file-tiff-body
- file-unknown-body
- ftp-req-params
- ftp-req-protocol-payload
- ftp-rsp-protocol-payload
- ftp-rsp-banner
- ftp-rsp-message
- gdbremote-req-context
- gdbremote-rsp-context
- giop-req-message-body
- giop-rsp-message-body
- h225-payload
- http-req-cookie
- http-req-headers
- http-req-host-header
- http-req-host-ipv4-address-found
- http-req-host-ipv6-address-found
- http-req-message-body
- http-req-mime-form-data
- http-req-ms-subdomain
- http-req-origin-headers
- http-req-params
- http-req-uri
- http-req-uri-path
- http-req-user-agent-header
- http-rsp-headers
- http-rsp-non-2xx-response-body
- http-rsp-reason
- icmp-req-code
- icmp-req-data
- icmp-req-type
- icmp-req-protocol-payload
- icmp-rsp-data
- icmp-rsp-protocol-payload
- icmp-req-possible-custom-payload
- ike-req-headers
- ike-rsp-headers
- ike-req-payload-text
- ike-rsp-payload-text
- imap-req-cmd-line
- imap-req-first-param
- imap-req-params-after-first-param
- imap-req-protocol-payload
- imap-rsp-protocol-payload
- irc-req-params
- irc-req-prefix
- jpeg-file-scan-data
- jpeg-file-segment-data
- jpeg-file-segment-header
- ldap-req-searchrequest-baseobject
- ldap-rsp-searchresentry-objectname
- ms-ds-smb-req-share-name
- ms-ds-smb-req-v1-create-filename
- ms-ds-smb-req-v2-create-filename
- msrpc-req-bind-data
- mssql-db-req-body
- netbios-dg-req-protocol-payload
- netbios-dg-rsp-protocol-payload
- netbios-ns-req-protocol-payload
- netbios-ns-rsp-protocol-payload
- nettcp-req-context
- oracle-req-data-text
- pe-dos-headers
- pe-file-header
- pe-optional-header
- pe-section-header
- pe-body-data
- pop3-req-protocol-payload
- pop3-rsp-protocol-payload
- pre-app-req-data
- pre-app-rsp-data
- rtmp-req-message-body
- rtsp-req-headers
- rtsp-req-uri-path
- sip-req-headers
- snmp-req-community-text
- smtp-req-argument
- smtp-rsp-content
- smtp-req-protocol-payload
- smtp-rsp-protocol-payload
- ssh-req-banner
- ssh-rsp-banner
- ssl-req-certificate
- ssl-req-chello-sni
- ssl-req-client-hello
- ssl-req-protocol-payload
- ssl-req-random-bytes
- ssl-rsp-cert-subjectpublickey
- ssl-rsp-certificate
- ssl-rsp-protocol-payload
- ssl-rsp-server-hello
- tcp-context-free
- telnet-req-client-data
- telnet-rsp-server-data
- udp-context-free
- unknown-req-tcp-payload
- unknown-rsp-tcp-payload
- unknown-req-udp-payload
- unknown-rsp-udp-payload
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- dnp3-req-func-code
- dnp3-req-object-type
- dns-rsp-tcp-over-dns
- dns-rsp-txt-found
- ftp-req-params-len
- http-req-connect-method
- http-req-content-length
- http-req-cookie-length
- http-req-dst-port
- http-req-header-length
- http-req-param-length
- http-req-no-version-string-small-pkt
- http-req-uri-path-length
- http-req-uri-tilde-count-num
- http-rsp-code
- http-rsp-content-length
- http-rsp-total-headers-len
- iccp-req-func-code
- ike-req-payload-type
- ike-rsp-payload-type
- ike-req-payload-length
- ike-rsp-payload-length
- ike-version
- imap-req-cmd-param-len
- imap-req-first-param-len
- imap-req-param-len-from-second
- irc-req-protocol-payload
- irc-rsp-protocol-payload
- open-vpn-req-protocol-payload
- pfcp-req-msg-type
- pfcp-rsp-msg-type
- smtp-req-helo-argument-length
- smtp-req-mail-argument-length
- smtp-req-rcpt-argument-length
- sctp-req-ppid
- ssl-req-client-hello-ext-type
- ssl-req-client-hello-missing-sni
- ssl-rsp-version
- stun-req-attr-type
- panav-rsp-zip-compression-ratio
- Context Qualifiers
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Custom Signature Pattern Requirements
Review the requirements for creating custom signature patterns.
The pattern requirements and available syntax for custom signatures depends on your firewall version. Firewalls running PAN-OS 10.0 (or a later version) have more flexible pattern requirements and a wider selection of regular expression (regex) syntax.
Refer to Syntax for Regular Expression Data Patterns for more details about the differences in syntax and pattern requirements between pre-PAN-OS 10.0 releases and PAN-OS 10.0 (and later) releases. You can switch between documentation releases by using the version switcher located in the left navigation bar.
If you encounter any errors using your custom signatures, verify that they conform to the following requirements.
Custom Signature Pattern Requirements | All versions |
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PAN-OS 9.1 and earlier versions |
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