.

pkg/antidebug/antidebug_signal.go

@@ -0,0 +1,35 @@
+package antidebug
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+var signalTrapDetected bool
+
+func checkSignalTrap() bool {
+	ch := make(chan os.Signal, 1)
+	signal.Notify(ch, syscall.SIGTRAP)
+
+	signalTrapDetected = false
+	go func() {
+		select {
+		case <-ch:
+			signalTrapDetected = true
+		case <-time.After(200 * time.Millisecond):
+		}
+	}()
+
+	time.Sleep(10 * time.Millisecond)
+
+	syscall.Kill(syscall.Getpid(), syscall.SIGTRAP)
+
+	time.Sleep(250 * time.Millisecond)
+	signal.Stop(ch)
+
+	// If the handler received the signal, no debugger intercepted it.
+	// If signalTrapDetected is false, a debugger caught the SIGTRAP.
+	return !signalTrapDetected
+}