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-5b8c0162-4223-45bc-9bcb-2614152f03ab

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 88 high
Basic Info

基础信息

event_id
runtime-5b8c0162-4223-45bc-9bcb-2614152f03ab
flow_id
safe-lab-20260704092453-e82171-023-post_bruteforce_action_like
src_ip
10.20.7.81
dst_ip
203.0.113.211
protocol
ssh
timestamp
2026-07-04T09:24:55.493068+00:00
风险等级
high
检测类型
post_bruteforce_action
detectors
rule_engine, attack_chain
source
mixed_scenario_lab
chain_related
True
Risk Score

风险评分

final_risk_score
88
severity
high
security_alert
True
Risk Formation

最终风险形成

rule_score
88
supervised_risk_score
1
calibrated_risk_score
1
anomaly_risk_score
15
final_risk_score
88
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

scenarios
post_bruteforce_action
support_type
rule_anomaly_gate_attack_chain_supported
model_claim
not_strong_supervised_label
explanation
This scenario is supported by rules, anomaly detection, uncertainty gate, and chain evidence rather than claimed as a strongly supervised classifier label.
Model Prediction

模型预测 model_prediction

predicted_label
benign
malicious_probability
0.0063
model_score
1
calibrated_risk_score
1
uncertainty_gate
0.026208
probability_entropy
0.045559
top2_margin
0.986493
js_divergence
0.002146
unknown_decision
False
model_supported_label
True

该场景主要由规则、攻击链或异常检测补强，不应表述为当前模型可靠覆盖。

Anomaly Detection

异常检测 anomaly_result

anomaly_score
15.430364
anomaly_risk_score
15
is_anomaly
False
Rule Hits

规则 evidence

post_bruteforce_action scenario_rule_engine · risk_score=88
Evidence

推荐处置 recommendation

  • uploaded_file=mixed_scenario_features.csv
  • input_label=post_bruteforce_action
  • uploaded feature row evaluated by EncGuard scenario rule engine
  • uncertainty_gate=0.026208
  • safe_lab_batch=safe-lab-20260704092453-e82171
  • scenario=post_bruteforce_action_like
  • ground_truth_label=post_bruteforce_action
  • 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

ssh_bruteforce_to_post_action chain_id=inferred-1 · risk_score=88
post_action_to_encrypted_tunnel chain_id=inferred-2 · risk_score=95
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-e82171-023-post_bruteforce_action_like
src_ip
10.20.7.81
dst_ip
203.0.113.211
src_port
62571
dst_port
22
protocol
ssh
start_time
2026-07-04T09:44:40Z
duration
0.7969
total_packets
13
total_bytes
1130
fwd_packets
6
bwd_packets
7
fwd_bytes
823
bwd_bytes
307
upload_download_ratio
2.680782
packets_per_second
16.313793
bytes_per_second
1418.045057
packet_size_mean
86.923077
packet_size_std
6.918452
iat_mean
0.070864
iat_std
0.0175
same_src_conn_count_1min
20
same_src_conn_count_5min
75
short_connection_count_5min
40
long_session_flag
False
large_upload_flag
False
unknown_destination_flag
False
non_working_hour_flag
True
packet_direction_sequence_summary
short_client_initiated_bursts
packet_size_sequence_summary
small_repeated_handshake_like
burst_count
24
interactive_gap_mean
0.070864
interactive_gap_std
0.0175
post_login_long_session_flag
False
command_like_burst_flag
True
failed_login_then_long_session_flag
False
scenario
post_bruteforce_action_like
label
post_bruteforce_action
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