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-4765540b-6eeb-461b-b6ab-a989b1db543e

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-4765540b-6eeb-461b-b6ab-a989b1db543e
flow_id
safe-lab-20260704092453-e82171-008-benign_sftp
src_ip
10.17.6.88
dst_ip
203.0.113.185
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
1
calibrated_risk_score
18
anomaly_risk_score
90
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
0.0091
model_score
1
calibrated_risk_score
18
uncertainty_gate
0.185265
probability_entropy
0.06497
top2_margin
0.980009
js_divergence
0.007521
unknown_decision
False
model_supported_label
True
Anomaly Detection

异常检测 anomaly_result

anomaly_score
76.116306
anomaly_risk_score
90
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=76.116306
  • anomaly_risk_score=90.0
  • anomaly treated as audit signal because rule and classifier context are benign
  • uncertainty_gate=0.185265
  • 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-e82171-008-benign_sftp
src_ip
10.17.6.88
dst_ip
203.0.113.185
src_port
54049
dst_port
22
protocol
sftp
start_time
2026-07-04T09:31:30Z
duration
24.9816
total_packets
254
total_bytes
1327978
fwd_packets
156
bwd_packets
98
fwd_bytes
1145765
bwd_bytes
182213
upload_download_ratio
6.288053
packets_per_second
10.167493
bytes_per_second
53158.295346
packet_size_mean
5228.259843
packet_size_std
77.813287
iat_mean
0.891113
iat_std
0.010255
same_src_conn_count_1min
3
same_src_conn_count_5min
3
short_connection_count_5min
0
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
3
interactive_gap_mean
0.891113
interactive_gap_std
0.010255
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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