This indicates a connection attempt to the Tongdaxin server made by a Tongdaxin client.
Tongdaxin is an online stock analysis and trading software which is used in China.
It does not contain any attack or exploit.
Risk
Medium
Popularity
Low
Characteristic
Loss of productivity? Have disclosed vulnerability? Can bypass firewall policy? Contain built-in function for other purposes? Can communicate in clear text or via proxy? Can support file transfer? Can be misused? Can tunnel other apps?