TROJAN: Unidentified Backdoor Knock Request
This signature detects unusual HTTP requests that might be related to a Trojan "Knock" request. This may be a special command to enable additional functionality/access to the Trojan. A response other than a 404 might mean your server is compromised.
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3