Techniques › T1498.002 › AN1143
AN1143 Analytic 1143
IaaS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Cloud-hosted VM or container generates spoofed UDP requests to third-party services on known amplifier ports, with high outbound-to-inbound traffic ratios in VPC Flow Logs</p>
- Detects
- T1498.002 Reflection Amplification
- Part of
- DET0408 Detection Strategy for Reflection Amplification DoS (T1498.002)
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| AWS:CloudTrail | Create egress rule allowing UDP to port 53, 123, 11211 | DC0051 Firewall Rule Modification |
| AWS:VPCFlowLogs | Large outbound UDP traffic to multiple public reflector IPs | DC0078 Network Traffic Flow |
| AWS:CloudWatch | Sudden spike in network output without a corresponding inbound request ratio | DC0018 Host Status |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
EgressRulePorts | Cloud security group rules permitting UDP to reflector protocols |
OutboundToInboundRatio | Ratio threshold to flag traffic as potential reflection behavior |
VMInstanceTagContext | Cloud metadata that can help scope anomalous behavior to development, testing, or external-facing services |