|
|
TCP |
5900 · VNC
|
vnc
|
Sonde VNC (5900/TCP)
port 5900 tcp · via VNC:5900 · (sonde / probe)
|
Élevée
|
Moyen · 42
|
|
Étape
Sonde / probe
Chaîne
Découverte
Persona
mail.sensor-1.internal
Rôle capteur
Renseignement menaces
MITRE
TA0007
TA0007
TA0001
Protocole
Émulateur
VNC
WAF
—
Recommandation
Surveiller
Tags
net_vnc_probe
vnc_emulated
Cible HTTP
—
TLS SNI
—
Capteur
paris-1
|
Méthode
—
Port
5900
Chemin / cible
—
Preuve honeypot — Sonde VNC (5900/TCP)
Connexion détectée sur le port 5900 (TCP) du capteur simulé.
Pourquoi cette classification : Type « port_5900_tcp » (signaux protocolaires) · confiance 69%
Confiance classification
69%
Risque capteur
Moyen
· 42
Confiance : Confiance 69 % — Classification nommée non retenue — preuves insuffisantes
Protocole émulé
1
Signaux
Tcp Vnc Auth
Technique MITRE
TA0007
Tactiques MITRE
TA0007
TA0001
User-Agent
—
Règles WAF
—
Meta JSON brut
{
"protocol_emulated": true,
"emulator_response": "524642203030332e3030380a",
"emulator_response_len": 12,
"port_inferred_service": true,
"bytes_in": 0,
"payload_entropy": 0,
"port_category": "registered",
"org": "LG DACOM Corporation",
"service": "vnc",
"app_proto": "vnc",
"asn": 3786,
"country": "KR",
"dst_port": 5900,
"risk_waf": 8,
"risk_classification": 38,
"risk_behavior": 0,
"risk_geo": 0,
"risk_protocol": 36,
"risk_novelty": 0,
"risk_boost": 0,
"risk_granularity": 2.3,
"risk_breakdown": {
"waf": 8,
"classification": 38,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0
},
"risk_score": 42,
"tag_count": 2,
"anomaly_count": 0,
"campaign_key": "85454e6c29c51aac1db940d56f57ff1075b15dc1",
"event_fingerprint": "3a1818c09cc3b5e6ad75703011c0dde91c1bf15b",
"classification_reason": "Type \u00ab port_5900_tcp \u00bb (signaux protocolaires) \u00b7 confiance 69%",
"confidence": 0.69,
"classification_confidence": 0.69,
"precision_score": 82,
"precision_signals": [
"INT-tcp-vnc-auth"
],
"kb_rule_ids": [
"INT-tcp-vnc-auth"
],
"confidence_breakdown": {
"waf": 8,
"classification": 38,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"named_classification_skipped": true,
"named_candidate": "vnc_bruteforce",
"service_name": "vnc",
"risk_confidence_factor": 69,
"city": null,
"is_datacenter": false,
"is_tor_hint": false,
"geo": {
"country": "KR",
"asn": 3786,
"org": "LG DACOM Corporation",
"is_datacenter": false,
"is_tor_hint": false
},
"fingerprint": {
"path_pattern_hash": "4a4cb19f87c1ed9566419ca625731da1"
},
"target_context": {
"dst_port": 5900,
"service": "vnc",
"service_name": "vnc",
"risk_score": 42
},
"attack_stage": "probe",
"mitre_tactics": [
"TA0007",
"TA0001"
],
"mitre": "TA0007",
"threat_family": [
"unknown"
],
"recommended_client_action": "monitor",
"policy_mode": "intelligence",
"sensor_role": "threat_intelligence",
"event_signature": "c3ade5dd4bf2b10d4442d8160e05322d98a8e986",
"protocol_details": {
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"attack_vector": "port 5900 tcp \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 69 % \u2014 Classification nomm\u00e9e non retenue \u2014 preuves insuffisantes",
"site_display": {
"classification": null,
"classification_reason": "Type \u00ab port_5900_tcp \u00bb (signaux protocolaires) \u00b7 confiance 69%",
"classification_reason_label_fr": "Type \u00ab port_5900_tcp \u00bb (signaux protocolaires) \u00b7 confiance 69%",
"executive_one_liner_fr": "Activit\u00e9 suspecte \u00b7 risque 42\/100",
"confidence_pct": 69,
"confidence_breakdown": {
"waf": 8,
"classification": 38,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"attack_stage": "probe",
"attack_stage_label": "Sonde \/ probe",
"attack_chain_stage": "discovery",
"attack_chain_stage_label_fr": "D\u00e9couverte",
"risk_score": 42,
"risk_label": "Moyen",
"service_name": "vnc",
"service_label_fr": "VNC",
"dst_port": 5900,
"protocol_emulated": true,
"tags_summary": [
"INT-tcp-vnc-auth"
],
"tags_summary_labels_fr": [
"Tcp Vnc Auth"
],
"recommended_action": "monitor",
"recommended_action_label": "Surveiller",
"mitre": "TA0007",
"mitre_technique": "TA0007",
"persona_hostname": "mail.sensor-1.internal",
"persona_service_banner": "honeypot-vnc",
"correlation_flags": null,
"correlation_flags_labels_fr": null,
"sensor_role": "threat_intelligence",
"sensor_role_label_fr": "Renseignement menaces",
"confidence_hint_fr": null,
"protocol_details": {
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"attack_vector": "port 5900 tcp \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"evidence_snippet": null,
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 69 % \u2014 Classification nomm\u00e9e non retenue \u2014 preuves insuffisantes",
"confidence_factors_fr": "Confiance 69 % \u2014 Score WAF 8",
"campaign_hint_fr": null,
"attack_phases_timeline_fr": [
{
"key": "recon",
"label_fr": "Reconnaissance",
"active": false,
"kind": "stage"
},
{
"key": "probe",
"label_fr": "Sonde \/ probe",
"active": true,
"kind": "stage"
},
{
"key": "exploit_attempt",
"label_fr": "Tentative d'exploit",
"active": false,
"kind": "stage"
},
{
"key": "post_exploit",
"label_fr": "Post-exploitation",
"active": false,
"kind": "stage"
},
{
"key": "c2",
"label_fr": "Commande & contr\u00f4le",
"active": false,
"kind": "stage"
},
{
"key": "discovery",
"label_fr": "D\u00e9couverte",
"active": true,
"kind": "chain",
"hint_fr": null
}
]
},
"honeypot_persona": {
"sensor_id": "sensor-1",
"hostname": "mail.sensor-1.internal",
"mail_host": "mail.sensor-1.internal",
"ldap_dc": "dc.sensor-1.internal",
"k8s_cluster": "hp-sensor-1",
"domain": "sensor-1.internal",
"service_role": "vnc",
"service_banner": "honeypot-vnc",
"service_os": "linux",
"dst_port": "5900"
},
"hostname": "mail.sensor-1.internal",
"sensor_id": "sensor-1",
"attack_chain_stage": "discovery",
"matched_patterns": [],
"ban_policy": "advisory_monitor",
"tags_list": [
"net_vnc_probe",
"vnc_emulated"
]
}
|
|
|
TCP |
5900 · VNC
|
vnc
|
Bruteforce VNC
vnc bruteforce · via VNC:5900 · (sonde / probe)
|
Élevée
|
Moyen · 42
|
|
Étape
Sonde / probe
Chaîne
Découverte
Persona
mail.sensor-1.internal
Rôle capteur
Renseignement menaces
MITRE
T1110
TA0007
TA0001
Protocole
Émulateur
VNC
WAF
—
Recommandation
Surveiller
Tags
net_vnc_bruteforce
vnc_auth_attempt
vnc_banner
vnc_emulated
Cible HTTP
—
TLS SNI
—
Capteur
paris-1
|
Méthode
—
Port
5900
Chemin / cible
—
Service
VNC
Payload
RFB 003.008
Pourquoi cette classification : Type « vnc_bruteforce » (signaux protocolaires) · confiance 95%
Confiance classification
95%
Risque capteur
Moyen
· 42
Confiance : Confiance 95 % — 4 signal(aux) capteur
Protocole émulé
1
Signaux
Tcp Vnc Auth
Upstream
Tactiques MITRE
TA0007
TA0001
Motifs de détection (base)
VNC RFB 3.8
User-Agent
—
Règles WAF
—
Payload (extrait)
RFB 003.008
Meta JSON brut
{
"protocol_emulated": true,
"emulator_response": "524642203030332e3030380a",
"emulator_response_len": 12,
"bytes_in": 12,
"payload_entropy": 2.9182958340544896,
"port_category": "registered",
"org": "LG DACOM Corporation",
"service": "vnc",
"app_proto": "vnc",
"asn": 3786,
"country": "KR",
"dst_port": 5900,
"risk_waf": 8,
"risk_classification": 68,
"risk_behavior": 0,
"risk_geo": 0,
"risk_protocol": 36,
"risk_novelty": 0,
"risk_boost": 0,
"risk_granularity": 3,
"risk_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0
},
"risk_score": 42,
"tag_count": 4,
"anomaly_count": 0,
"campaign_key": "be66c1e10cc49cf983619c539468e52da00ee67a",
"event_fingerprint": "4224855e75f2a2d841b898f9815ab5cb95ce6365",
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"confidence": 0.95,
"classification_confidence": 0.95,
"precision_score": 107,
"precision_signals": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"kb_rule_ids": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"matched_patterns": [
"pat-0552"
],
"matched_pattern_names": [
"VNC RFB 3.8"
],
"pattern_ids": [
"pat-0552"
],
"confidence_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"named_classification_skipped": false,
"service_name": "vnc",
"risk_confidence_factor": 95,
"city": null,
"is_datacenter": false,
"is_tor_hint": false,
"geo": {
"country": "KR",
"asn": 3786,
"org": "LG DACOM Corporation",
"is_datacenter": false,
"is_tor_hint": false
},
"fingerprint": {
"payload_hash": "59ac080647b56a2a43715cdf9e630c46",
"path_pattern_hash": "6577fc24207aaa414d0e07447153793c"
},
"target_context": {
"dst_port": 5900,
"service": "vnc",
"service_name": "vnc",
"risk_score": 42
},
"payload_preview": "RFB 003.008\n",
"request_sample": "RFB 003.008\n",
"payload_snippet": "RFB 003.008",
"evidence": {
"request_sample": "RFB 003.008\n",
"payload_snippet": "RFB 003.008",
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%"
},
"attack_stage": "probe",
"mitre_tactics": [
"TA0007",
"TA0001"
],
"mitre_techniques": [
"T1110"
],
"mitre": "T1110",
"threat_family": [
"unknown"
],
"recommended_client_action": "monitor",
"policy_mode": "intelligence",
"sensor_role": "threat_intelligence",
"event_signature": "60f11fe76a8ae12877f3fd8c55b32557a87e48db",
"protocol_details": {
"payload_preview": "RFB 003.008",
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"evidence_snippet": "RFB 003.008",
"attack_vector": "vnc bruteforce \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 95 % \u2014 4 signal(aux) capteur",
"site_display": {
"classification": null,
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"classification_reason_label_fr": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"executive_one_liner_fr": "Activit\u00e9 suspecte \u00b7 risque 42\/100",
"confidence_pct": 95,
"confidence_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"attack_stage": "probe",
"attack_stage_label": "Sonde \/ probe",
"attack_chain_stage": "discovery",
"attack_chain_stage_label_fr": "D\u00e9couverte",
"risk_score": 42,
"risk_label": "Moyen",
"service_name": "vnc",
"service_label_fr": "VNC",
"dst_port": 5900,
"protocol_emulated": true,
"tags_summary": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"tags_summary_labels_fr": [
"Tcp Vnc Auth",
"Upstream"
],
"recommended_action": "monitor",
"recommended_action_label": "Surveiller",
"mitre": "T1110",
"mitre_technique": "T1110",
"persona_hostname": "mail.sensor-1.internal",
"persona_service_banner": "honeypot-vnc",
"correlation_flags": null,
"correlation_flags_labels_fr": null,
"sensor_role": "threat_intelligence",
"sensor_role_label_fr": "Renseignement menaces",
"confidence_hint_fr": null,
"protocol_details": {
"payload_preview": "RFB 003.008",
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"attack_vector": "vnc bruteforce \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"evidence_snippet": "RFB 003.008",
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 95 % \u2014 4 signal(aux) capteur",
"confidence_factors_fr": "Confiance 95 % \u2014 Score WAF 8",
"campaign_hint_fr": null,
"attack_phases_timeline_fr": [
{
"key": "recon",
"label_fr": "Reconnaissance",
"active": false,
"kind": "stage"
},
{
"key": "probe",
"label_fr": "Sonde \/ probe",
"active": true,
"kind": "stage"
},
{
"key": "exploit_attempt",
"label_fr": "Tentative d'exploit",
"active": false,
"kind": "stage"
},
{
"key": "post_exploit",
"label_fr": "Post-exploitation",
"active": false,
"kind": "stage"
},
{
"key": "c2",
"label_fr": "Commande & contr\u00f4le",
"active": false,
"kind": "stage"
},
{
"key": "discovery",
"label_fr": "D\u00e9couverte",
"active": true,
"kind": "chain",
"hint_fr": null
}
]
},
"honeypot_persona": {
"sensor_id": "sensor-1",
"hostname": "mail.sensor-1.internal",
"mail_host": "mail.sensor-1.internal",
"ldap_dc": "dc.sensor-1.internal",
"k8s_cluster": "hp-sensor-1",
"domain": "sensor-1.internal",
"service_role": "vnc",
"service_banner": "honeypot-vnc",
"service_os": "linux",
"dst_port": "5900"
},
"hostname": "mail.sensor-1.internal",
"sensor_id": "sensor-1",
"attack_chain_stage": "discovery",
"ban_policy": "advisory_monitor",
"tags_list": [
"net_vnc_bruteforce",
"vnc_auth_attempt",
"vnc_banner",
"vnc_emulated"
]
}
|
|
|
TCP |
5900 · VNC
|
vnc
|
Bruteforce VNC
vnc bruteforce · via VNC:5900 · (sonde / probe)
|
Élevée
|
Moyen · 42
|
|
Étape
Sonde / probe
Chaîne
Découverte
Persona
mail.sensor-1.internal
Rôle capteur
Renseignement menaces
MITRE
T1110
TA0007
TA0001
Protocole
Émulateur
VNC
WAF
—
Recommandation
Surveiller
Tags
net_vnc_bruteforce
vnc_auth_attempt
vnc_banner
vnc_emulated
Cible HTTP
—
TLS SNI
—
Capteur
paris-1
|
Méthode
—
Port
5900
Chemin / cible
—
Service
VNC
Payload
RFB 003.008
Pourquoi cette classification : Type « vnc_bruteforce » (signaux protocolaires) · confiance 95%
Confiance classification
95%
Risque capteur
Moyen
· 42
Confiance : Confiance 95 % — 4 signal(aux) capteur
Protocole émulé
1
Signaux
Tcp Vnc Auth
Upstream
Tactiques MITRE
TA0007
TA0001
Motifs de détection (base)
VNC RFB 3.8
User-Agent
—
Règles WAF
—
Payload (extrait)
RFB 003.008
Meta JSON brut
{
"protocol_emulated": true,
"emulator_response": "524642203030332e3030380a",
"emulator_response_len": 12,
"bytes_in": 12,
"payload_entropy": 2.9182958340544896,
"port_category": "registered",
"org": "LG DACOM Corporation",
"service": "vnc",
"app_proto": "vnc",
"asn": 3786,
"country": "KR",
"dst_port": 5900,
"risk_waf": 8,
"risk_classification": 68,
"risk_behavior": 0,
"risk_geo": 0,
"risk_protocol": 36,
"risk_novelty": 0,
"risk_boost": 0,
"risk_granularity": 3,
"risk_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0
},
"risk_score": 42,
"tag_count": 4,
"anomaly_count": 0,
"campaign_key": "be66c1e10cc49cf983619c539468e52da00ee67a",
"event_fingerprint": "4224855e75f2a2d841b898f9815ab5cb95ce6365",
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"confidence": 0.95,
"classification_confidence": 0.95,
"precision_score": 107,
"precision_signals": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"kb_rule_ids": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"matched_patterns": [
"pat-0552"
],
"matched_pattern_names": [
"VNC RFB 3.8"
],
"pattern_ids": [
"pat-0552"
],
"confidence_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"named_classification_skipped": false,
"service_name": "vnc",
"risk_confidence_factor": 95,
"city": null,
"is_datacenter": false,
"is_tor_hint": false,
"geo": {
"country": "KR",
"asn": 3786,
"org": "LG DACOM Corporation",
"is_datacenter": false,
"is_tor_hint": false
},
"fingerprint": {
"payload_hash": "59ac080647b56a2a43715cdf9e630c46",
"path_pattern_hash": "6577fc24207aaa414d0e07447153793c"
},
"target_context": {
"dst_port": 5900,
"service": "vnc",
"service_name": "vnc",
"risk_score": 42
},
"payload_preview": "RFB 003.008\n",
"request_sample": "RFB 003.008\n",
"payload_snippet": "RFB 003.008",
"evidence": {
"request_sample": "RFB 003.008\n",
"payload_snippet": "RFB 003.008",
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%"
},
"attack_stage": "probe",
"mitre_tactics": [
"TA0007",
"TA0001"
],
"mitre_techniques": [
"T1110"
],
"mitre": "T1110",
"threat_family": [
"unknown"
],
"recommended_client_action": "monitor",
"policy_mode": "intelligence",
"sensor_role": "threat_intelligence",
"event_signature": "60f11fe76a8ae12877f3fd8c55b32557a87e48db",
"protocol_details": {
"payload_preview": "RFB 003.008",
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"evidence_snippet": "RFB 003.008",
"attack_vector": "vnc bruteforce \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 95 % \u2014 4 signal(aux) capteur",
"site_display": {
"classification": null,
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"classification_reason_label_fr": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"executive_one_liner_fr": "Activit\u00e9 suspecte \u00b7 risque 42\/100",
"confidence_pct": 95,
"confidence_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"attack_stage": "probe",
"attack_stage_label": "Sonde \/ probe",
"attack_chain_stage": "discovery",
"attack_chain_stage_label_fr": "D\u00e9couverte",
"risk_score": 42,
"risk_label": "Moyen",
"service_name": "vnc",
"service_label_fr": "VNC",
"dst_port": 5900,
"protocol_emulated": true,
"tags_summary": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"tags_summary_labels_fr": [
"Tcp Vnc Auth",
"Upstream"
],
"recommended_action": "monitor",
"recommended_action_label": "Surveiller",
"mitre": "T1110",
"mitre_technique": "T1110",
"persona_hostname": "mail.sensor-1.internal",
"persona_service_banner": "honeypot-vnc",
"correlation_flags": null,
"correlation_flags_labels_fr": null,
"sensor_role": "threat_intelligence",
"sensor_role_label_fr": "Renseignement menaces",
"confidence_hint_fr": null,
"protocol_details": {
"payload_preview": "RFB 003.008",
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"attack_vector": "vnc bruteforce \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"evidence_snippet": "RFB 003.008",
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 95 % \u2014 4 signal(aux) capteur",
"confidence_factors_fr": "Confiance 95 % \u2014 Score WAF 8",
"campaign_hint_fr": null,
"attack_phases_timeline_fr": [
{
"key": "recon",
"label_fr": "Reconnaissance",
"active": false,
"kind": "stage"
},
{
"key": "probe",
"label_fr": "Sonde \/ probe",
"active": true,
"kind": "stage"
},
{
"key": "exploit_attempt",
"label_fr": "Tentative d'exploit",
"active": false,
"kind": "stage"
},
{
"key": "post_exploit",
"label_fr": "Post-exploitation",
"active": false,
"kind": "stage"
},
{
"key": "c2",
"label_fr": "Commande & contr\u00f4le",
"active": false,
"kind": "stage"
},
{
"key": "discovery",
"label_fr": "D\u00e9couverte",
"active": true,
"kind": "chain",
"hint_fr": null
}
]
},
"honeypot_persona": {
"sensor_id": "sensor-1",
"hostname": "mail.sensor-1.internal",
"mail_host": "mail.sensor-1.internal",
"ldap_dc": "dc.sensor-1.internal",
"k8s_cluster": "hp-sensor-1",
"domain": "sensor-1.internal",
"service_role": "vnc",
"service_banner": "honeypot-vnc",
"service_os": "linux",
"dst_port": "5900"
},
"hostname": "mail.sensor-1.internal",
"sensor_id": "sensor-1",
"attack_chain_stage": "discovery",
"ban_policy": "advisory_monitor",
"tags_list": [
"net_vnc_bruteforce",
"vnc_auth_attempt",
"vnc_banner",
"vnc_emulated"
]
}
|
|
|
TCP |
5900 · VNC
|
vnc
|
Bruteforce VNC
vnc bruteforce · via VNC:5900 · (sonde / probe)
|
Élevée
|
Moyen · 42
|
|
Étape
Sonde / probe
Chaîne
Découverte
Persona
mail.sensor-1.internal
Rôle capteur
Renseignement menaces
MITRE
T1110
TA0007
TA0001
Protocole
Émulateur
VNC
WAF
—
Recommandation
Surveiller
Tags
net_vnc_bruteforce
vnc_auth_attempt
vnc_banner
vnc_emulated
Cible HTTP
—
TLS SNI
—
Capteur
paris-1
|
Méthode
—
Port
5900
Chemin / cible
—
Service
VNC
Payload
RFB 003.008
Pourquoi cette classification : Type « vnc_bruteforce » (signaux protocolaires) · confiance 95%
Confiance classification
95%
Risque capteur
Moyen
· 42
Confiance : Confiance 95 % — 4 signal(aux) capteur
Protocole émulé
1
Signaux
Tcp Vnc Auth
Upstream
Tactiques MITRE
TA0007
TA0001
Motifs de détection (base)
VNC RFB 3.8
User-Agent
—
Règles WAF
—
Payload (extrait)
RFB 003.008
Meta JSON brut
{
"protocol_emulated": true,
"emulator_response": "524642203030332e3030380a",
"emulator_response_len": 12,
"bytes_in": 12,
"payload_entropy": 2.9182958340544896,
"port_category": "registered",
"org": "LG DACOM Corporation",
"service": "vnc",
"app_proto": "vnc",
"asn": 3786,
"country": "KR",
"dst_port": 5900,
"risk_waf": 8,
"risk_classification": 68,
"risk_behavior": 0,
"risk_geo": 0,
"risk_protocol": 36,
"risk_novelty": 0,
"risk_boost": 0,
"risk_granularity": 3,
"risk_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0
},
"risk_score": 42,
"tag_count": 4,
"anomaly_count": 0,
"campaign_key": "be66c1e10cc49cf983619c539468e52da00ee67a",
"event_fingerprint": "4224855e75f2a2d841b898f9815ab5cb95ce6365",
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"confidence": 0.95,
"classification_confidence": 0.95,
"precision_score": 107,
"precision_signals": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"kb_rule_ids": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"matched_patterns": [
"pat-0552"
],
"matched_pattern_names": [
"VNC RFB 3.8"
],
"pattern_ids": [
"pat-0552"
],
"confidence_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"named_classification_skipped": false,
"service_name": "vnc",
"risk_confidence_factor": 95,
"city": null,
"is_datacenter": false,
"is_tor_hint": false,
"geo": {
"country": "KR",
"asn": 3786,
"org": "LG DACOM Corporation",
"is_datacenter": false,
"is_tor_hint": false
},
"fingerprint": {
"payload_hash": "59ac080647b56a2a43715cdf9e630c46",
"path_pattern_hash": "6577fc24207aaa414d0e07447153793c"
},
"target_context": {
"dst_port": 5900,
"service": "vnc",
"service_name": "vnc",
"risk_score": 42
},
"payload_preview": "RFB 003.008\n",
"request_sample": "RFB 003.008\n",
"payload_snippet": "RFB 003.008",
"evidence": {
"request_sample": "RFB 003.008\n",
"payload_snippet": "RFB 003.008",
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%"
},
"attack_stage": "probe",
"mitre_tactics": [
"TA0007",
"TA0001"
],
"mitre_techniques": [
"T1110"
],
"mitre": "T1110",
"threat_family": [
"unknown"
],
"recommended_client_action": "monitor",
"policy_mode": "intelligence",
"sensor_role": "threat_intelligence",
"event_signature": "60f11fe76a8ae12877f3fd8c55b32557a87e48db",
"protocol_details": {
"payload_preview": "RFB 003.008",
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"evidence_snippet": "RFB 003.008",
"attack_vector": "vnc bruteforce \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 95 % \u2014 4 signal(aux) capteur",
"site_display": {
"classification": null,
"classification_reason": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"classification_reason_label_fr": "Type \u00ab vnc_bruteforce \u00bb (signaux protocolaires) \u00b7 confiance 95%",
"executive_one_liner_fr": "Activit\u00e9 suspecte \u00b7 risque 42\/100",
"confidence_pct": 95,
"confidence_breakdown": {
"waf": 8,
"classification": 68,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 42
},
"attack_stage": "probe",
"attack_stage_label": "Sonde \/ probe",
"attack_chain_stage": "discovery",
"attack_chain_stage_label_fr": "D\u00e9couverte",
"risk_score": 42,
"risk_label": "Moyen",
"service_name": "vnc",
"service_label_fr": "VNC",
"dst_port": 5900,
"protocol_emulated": true,
"tags_summary": [
"INT-tcp-vnc-auth",
"INT-upstream"
],
"tags_summary_labels_fr": [
"Tcp Vnc Auth",
"Upstream"
],
"recommended_action": "monitor",
"recommended_action_label": "Surveiller",
"mitre": "T1110",
"mitre_technique": "T1110",
"persona_hostname": "mail.sensor-1.internal",
"persona_service_banner": "honeypot-vnc",
"correlation_flags": null,
"correlation_flags_labels_fr": null,
"sensor_role": "threat_intelligence",
"sensor_role_label_fr": "Renseignement menaces",
"confidence_hint_fr": null,
"protocol_details": {
"payload_preview": "RFB 003.008",
"port": 5900,
"service": "vnc",
"service_label_fr": "VNC"
},
"attack_vector": "vnc bruteforce \u00b7 via VNC:5900 \u00b7 (sonde \/ probe)",
"evidence_snippet": "RFB 003.008",
"target_port_label": "5900 \u00b7 VNC",
"emulator_service": "vnc",
"confidence_reason": "Confiance 95 % \u2014 4 signal(aux) capteur",
"confidence_factors_fr": "Confiance 95 % \u2014 Score WAF 8",
"campaign_hint_fr": null,
"attack_phases_timeline_fr": [
{
"key": "recon",
"label_fr": "Reconnaissance",
"active": false,
"kind": "stage"
},
{
"key": "probe",
"label_fr": "Sonde \/ probe",
"active": true,
"kind": "stage"
},
{
"key": "exploit_attempt",
"label_fr": "Tentative d'exploit",
"active": false,
"kind": "stage"
},
{
"key": "post_exploit",
"label_fr": "Post-exploitation",
"active": false,
"kind": "stage"
},
{
"key": "c2",
"label_fr": "Commande & contr\u00f4le",
"active": false,
"kind": "stage"
},
{
"key": "discovery",
"label_fr": "D\u00e9couverte",
"active": true,
"kind": "chain",
"hint_fr": null
}
]
},
"honeypot_persona": {
"sensor_id": "sensor-1",
"hostname": "mail.sensor-1.internal",
"mail_host": "mail.sensor-1.internal",
"ldap_dc": "dc.sensor-1.internal",
"k8s_cluster": "hp-sensor-1",
"domain": "sensor-1.internal",
"service_role": "vnc",
"service_banner": "honeypot-vnc",
"service_os": "linux",
"dst_port": "5900"
},
"hostname": "mail.sensor-1.internal",
"sensor_id": "sensor-1",
"attack_chain_stage": "discovery",
"ban_policy": "advisory_monitor",
"tags_list": [
"net_vnc_bruteforce",
"vnc_auth_attempt",
"vnc_banner",
"vnc_emulated"
]
}
|