加密流量元数据与行为分析

EncGuard Pro 加密通信恶意行为检测平台

检测模式：规则检测 + 分类模型 + 异常检测 + 攻击链融合 模型状态：已启用

Alert Detail

告警详情

runtime-08d2f51c-903b-4b74-bdf8-2c2b0efdad21

模型预测与异常检测已拆分为 model_prediction 与 anomaly_result 两个解释区。

风险评分 20 normal
Basic Info

基础信息

event_id
runtime-08d2f51c-903b-4b74-bdf8-2c2b0efdad21
flow_id
safe-lab-20260704092453-e82171-010-benign_sftp
src_ip
10.14.4.22
dst_ip
203.0.113.33
protocol
sftp
timestamp
2026-07-04T09:24:55.493068+00:00
风险等级
normal
检测类型
benign
detectors
rule_engine, anomaly_detector
source
mixed_scenario_lab
chain_related
False
Risk Score

风险评分

final_risk_score
20
severity
normal
security_alert
False
Risk Formation

最终风险形成

rule_score
20
supervised_risk_score
0
calibrated_risk_score
16
anomaly_risk_score
91
final_risk_score
20
fusion_policy
max(rule_score, calibrated_risk_score, anomaly_risk_score)
gate_formula
risk=(1-g)*supervised_risk+g*anomaly_risk
Weak Scenario Support

弱覆盖场景补强证据

该事件不属于弱覆盖场景，或无需额外补强说明。

Model Prediction

模型预测 model_prediction

predicted_label
benign
malicious_probability
0.0046
model_score
0
calibrated_risk_score
16
uncertainty_gate
0.175461
probability_entropy
0.037452
top2_margin
0.989744
js_divergence
0.004468
unknown_decision
False
model_supported_label
True
Anomaly Detection

异常检测 anomaly_result

anomaly_score
80.336136
anomaly_risk_score
91
is_anomaly
True
Rule Hits

规则 evidence

benign scenario_rule_engine · risk_score=20
Evidence

推荐处置 recommendation

  • uploaded_file=mixed_scenario_features.csv
  • input_label=benign
  • uploaded feature row evaluated by EncGuard scenario rule engine
  • anomaly_score=80.336136
  • anomaly_risk_score=90.0
  • anomaly treated as audit signal because rule and classifier context are benign
  • uncertainty_gate=0.175461
  • safe_lab_batch=safe-lab-20260704092453-e82171
  • scenario=benign_sftp
  • ground_truth_label=benign
  • safe synthetic metadata only; no payload and no real attack execution

recommendation：Review uploaded feature context and validate whether this communication is authorized.

Attack Chain

攻击链关联 attack_chain

暂无攻击链关联。

Safety Boundary

安全边界说明

  • EncGuard 不解密 SSH/TLS/HTTPS/SFTP/SCP payload。
  • 当前检测依据为连接元数据、流量统计、规则 evidence、模型预测、异常检测和攻击链聚合。
  • post_bruteforce_action、encrypted_tunnel、data_exfiltration 主要由规则、攻击链或异常检测补强。
Raw Feature

原始特征详情

flow_id
safe-lab-20260704092453-e82171-010-benign_sftp
src_ip
10.14.4.22
dst_ip
203.0.113.33
src_port
55827
dst_port
22
protocol
sftp
start_time
2026-07-04T09:33:44Z
duration
112.3835
total_packets
701
total_bytes
7131364
fwd_packets
320
bwd_packets
381
fwd_bytes
3290739
bwd_bytes
3840625
upload_download_ratio
0.856824
packets_per_second
6.237573
bytes_per_second
63455.635899
packet_size_mean
10173.129815
packet_size_std
116.950467
iat_mean
0.80118
iat_std
0.065203
same_src_conn_count_1min
2
same_src_conn_count_5min
6
short_connection_count_5min
2
long_session_flag
False
large_upload_flag
False
unknown_destination_flag
False
non_working_hour_flag
False
packet_direction_sequence_summary
balanced_bidirectional
packet_size_sequence_summary
stable_interactive
burst_count
1
interactive_gap_mean
0.80118
interactive_gap_std
0.065203
post_login_long_session_flag
False
command_like_burst_flag
False
failed_login_then_long_session_flag
False
scenario
benign_sftp
label
benign
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