YMSG: Invalid Event Code
This protocol anomaly is a Yahoo! Messenger message header that contains an invalid message type (event code) for the client or server state. Ex. A message type for an instant message can appear in the message header of a client authentication message.
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