Log dns init length

BishopFox · Aug 7, 2023 · ad2be94 · ad2be94
1 parent 0050bf8
commit ad2be94
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diff --git a/implant/sliver/transports/dnsclient/dnsclient.go b/implant/sliver/transports/dnsclient/dnsclient.go
@@ -303,6 +303,13 @@ func (s *SliverDNSClient) SessionInit() error {
 	if err != nil {
 		return err
 	}
+	// {{if .Config.Debug}}
+	log.Printf("[dns] dns session id %d", s.dnsSessionID)
+	// {{end}}
+
+	// {{if .Config.Debug}}
+	log.Printf("[dns] fingerprinting resolvers ...")
+	// {{end}}
 	s.fingerprintResolvers() // Fingerprint the resolvers
 	if len(s.resolvers) < 1 {
 		// {{if .Config.Debug}}

diff --git a/server/c2/dns.go b/server/c2/dns.go
@@ -522,6 +522,8 @@ func (s *SliverDNSServer) handleDNSSessionInit(domain string, msg *dnspb.DNSMess
 		return s.refusedErrorResp(req)
 	}
 
+	dnsLog.Infof("[session init] init data sent: %d bytes", len(msg.Data))
+
 	serverKeyPair := cryptography.ECCServerKeyPair()
 	sessionInit, err := cryptography.AgeKeyExFromImplant(
 		serverKeyPair.Private,