Méthode
—
Port
22
Chemin / cible
—
Service
SSH
Payload
HELFD ������ $ opc.tcp://localhost:4840/UADiscovery
Pourquoi cette classification : Type « ssrf_internal » (signaux protocolaires) · confiance 54%
Confiance classification
54%
Risque capteur
Moyen
· 46
Confiance : Confiance 54 % — Motif catalogue confirmé
Protocole émulé
1
Signaux
CRS-920350
Technique MITRE
TA0001
Tactiques MITRE
TA0001
TA0002
Motifs de détection (base)
LFI Double-dot bypass
OPC UA HEL
Minecraft varint handshake
User-Agent
—
Règles WAF
—
Payload (extrait)
HELFD ������ $ opc.tcp://localhost:4840/UADiscovery
Meta JSON brut
{
"protocol_emulated": true,
"emulator_response": "5353482d322e302d4f70656e5353485f392e337031205562756e74752d317562756e7475330d0a",
"emulator_response_len": 39,
"bytes_in": 68,
"payload_entropy": 4.215061186361338,
"port_category": "well_known",
"org": "Driftnet Ltd",
"service": "ssh",
"app_proto": "ssh",
"asn": 211298,
"country": "GB",
"dst_port": 22,
"risk_waf": 8,
"risk_classification": 80,
"risk_behavior": 0,
"risk_geo": 0,
"risk_protocol": 36,
"risk_novelty": 0,
"risk_boost": 0,
"risk_granularity": 4.2,
"risk_breakdown": {
"waf": 8,
"classification": 80,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0
},
"risk_score": 46,
"tag_count": 2,
"anomaly_count": 0,
"campaign_key": "ec742e1f26595cf120b330e5f862965c23dfeeb2",
"event_fingerprint": "bc4e3fa786c83e0db7c1c892cb0c288f6b14388f",
"classification_reason": "Type \u00ab ssrf_internal \u00bb (signaux protocolaires) \u00b7 confiance 54%",
"confidence": 0.54,
"classification_confidence": 0.54,
"precision_score": 64,
"precision_signals": [
"CRS-920350"
],
"kb_rule_ids": [
"CRS-920350"
],
"matched_patterns": [
"pat-0103",
"pat-0626",
"pat-0554"
],
"matched_pattern_names": [
"LFI Double-dot bypass",
"OPC UA HEL",
"Minecraft varint handshake"
],
"pattern_ids": [
"pat-0103",
"pat-0626",
"pat-0554"
],
"confidence_breakdown": {
"waf": 8,
"classification": 80,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 46
},
"named_classification_skipped": false,
"classification_parent": "ssrf_attack",
"service_name": "ssh",
"risk_confidence_factor": 54,
"city": null,
"is_datacenter": false,
"is_tor_hint": false,
"geo": {
"country": "GB",
"asn": 211298,
"org": "Driftnet Ltd",
"is_datacenter": false,
"is_tor_hint": false
},
"fingerprint": {
"payload_hash": "25ff696378674b05597657718486af19",
"path_pattern_hash": "2926fa5ba65a298fe7630f4e1d1dd6ea"
},
"target_context": {
"dst_port": 22,
"service": "ssh",
"service_name": "ssh",
"risk_score": 46
},
"payload_preview": "HELFD\u0000\u0000\u0000\u0000\u0000\u0000\u0000\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000$\u0000\u0000\u0000opc.tcp:\/\/localhost:4840\/UADiscovery",
"request_sample": "HELFD\u0000\u0000\u0000\u0000\u0000\u0000\u0000\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000$\u0000\u0000\u0000opc.tcp:\/\/localhost:4840\/UADiscovery",
"payload_snippet": "HELFD\u0000\u0000\u0000\u0000\u0000\u0000\u0000\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000$\u0000\u0000\u0000opc.tcp:\/\/localhost:4840\/UADiscovery",
"evidence": {
"request_sample": "HELFD\u0000\u0000\u0000\u0000\u0000\u0000\u0000\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000$\u0000\u0000\u0000opc.tcp:\/\/localhost:4840\/UADiscovery",
"payload_snippet": "HELFD\u0000\u0000\u0000\u0000\u0000\u0000\u0000\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000$\u0000\u0000\u0000opc.tcp:\/\/localhost:4840\/UADiscovery",
"classification_reason": "Type \u00ab ssrf_internal \u00bb (signaux protocolaires) \u00b7 confiance 54%"
},
"attack_stage": "exploit_attempt",
"mitre_tactics": [
"TA0001",
"TA0002"
],
"mitre": "TA0001",
"threat_family": [
"unknown"
],
"recommended_client_action": "monitor",
"policy_mode": "intelligence",
"sensor_role": "threat_intelligence",
"event_signature": "4c2f679d9851f342c48fc066fc93d533de89d949",
"protocol_details": {
"payload_preview": "HELFD\u0000\u0000\u0000\u0000\u0000\u0000\u0000\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000$\u0000\u0000\u0000opc.tcp:\/\/localhost:4840\/UADiscovery",
"port": 22,
"service": "ssh",
"service_label_fr": "SSH"
},
"evidence_snippet": "HELFD\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd$opc.tcp:\/\/localhost:4840\/UADiscovery",
"attack_vector": "ssrf internal \u00b7 via SSH:22 \u00b7 (tentative d'exploit)",
"target_port_label": "22 \u00b7 SSH",
"emulator_service": "ssh",
"confidence_reason": "Confiance 54 % \u2014 Motif catalogue confirm\u00e9",
"site_display": {
"classification": null,
"classification_reason": "Type \u00ab ssrf_internal \u00bb (signaux protocolaires) \u00b7 confiance 54%",
"classification_reason_label_fr": "Type \u00ab ssrf_internal \u00bb (signaux protocolaires) \u00b7 confiance 54%",
"executive_one_liner_fr": "Activit\u00e9 suspecte \u2014 risque 46\/100 (Moyen) \u2014 MITRE TA0001 \u2014 confiance 54 % \u2014 via SSH",
"confidence_pct": 54,
"confidence_breakdown": {
"waf": 8,
"classification": 80,
"behavior": 0,
"geo": 0,
"protocol": 36,
"novelty": 0,
"risk_score": 46
},
"attack_stage": "exploit_attempt",
"attack_stage_label": "Tentative d'exploit",
"attack_chain_stage": "exploitation",
"attack_chain_stage_label_fr": "Exploitation",
"risk_score": 46,
"risk_label": "Moyen",
"service_name": "ssh",
"service_label_fr": "SSH",
"dst_port": 22,
"protocol_emulated": true,
"tags_summary": [
"CRS-920350"
],
"tags_summary_labels_fr": [
"CRS-920350"
],
"recommended_action": "monitor",
"recommended_action_label": "Surveiller",
"mitre": "TA0001",
"mitre_technique": "TA0001",
"persona_hostname": "mail.sensor-1.internal",
"persona_service_banner": "OpenSSH_8.9p1 Ubuntu",
"correlation_flags": null,
"correlation_flags_labels_fr": null,
"sensor_role": "threat_intelligence",
"sensor_role_label_fr": "Renseignement menaces",
"confidence_hint_fr": null,
"protocol_details": {
"payload_preview": "HELFD\u0000\u0000\u0000\u0000\u0000\u0000\u0000\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000$\u0000\u0000\u0000opc.tcp:\/\/localhost:4840\/UADiscovery",
"port": 22,
"service": "ssh",
"service_label_fr": "SSH"
},
"attack_vector": "ssrf internal \u00b7 via SSH:22 \u00b7 (tentative d'exploit)",
"evidence_snippet": "HELFD\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd$opc.tcp:\/\/localhost:4840\/UADiscovery",
"target_port_label": "22 \u00b7 SSH",
"emulator_service": "ssh",
"confidence_reason": "Confiance 54 % \u2014 Motif catalogue confirm\u00e9",
"confidence_factors_fr": "Confiance 54 % \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": false,
"kind": "stage"
},
{
"key": "exploit_attempt",
"label_fr": "Tentative d'exploit",
"active": true,
"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": "exploitation",
"label_fr": "Exploitation",
"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": "ssh",
"service_banner": "OpenSSH_8.9p1 Ubuntu",
"service_os": "linux",
"dst_port": "22"
},
"hostname": "mail.sensor-1.internal",
"sensor_id": "sensor-1",
"attack_chain_stage": "exploitation",
"ban_policy": "advisory_monitor",
"tags_list": [
"net_ssh_probe",
"ssh_emulated"
]
}
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