@startuml proone
package "Proone Instance" as prne_i {
	[Main Thread]
	component Heartbeat {
		interface LBD
		component CNCP
		component "Main CTX" as htbt_main_ctx
	}
	component Resolv
	component Recon
	component "BNE Pool" as bne_pool {
		[instance]
	}

	[CNCP] <-d-> [Resolv]: Queue TXT REC Query
	[Recon] -> [Main Thread]: Event Callback
	[Main Thread] -d-> [instance]: Spawn
}

cloud "Public DOT Nameservers" {
	component "CNC TXT REC" as cnc_txt_rec
}

usecase "Heartbeat Auth Impl" as htbt_auth_impl
usecase "Another Proone Instance" as a_prne_i
usecase "Maintenance Tool" as mttool
node "Victim Host" as victim_host

[htbt_main_ctx] -> [htbt_auth_impl]: SOLICIT
[cnc_txt_rec] <-> [Resolv]: Query TXT REC
a_prne_i -d-> (LBD): M2M
mttool -d-> (LBD): Maintenance Access
[instance] -d-> victim_host: Infect
@enduml