Techniques › T1095 › AN1254
AN1254 Analytic 1254
Windows · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Anomalous use of ICMP or UDP by non-network service processes for data exfiltration or remote control, especially if traffic bypasses proxy infrastructure or shows unusual flow patterns.</p>
- Detects
- T1095 Non-Application Layer Protocol
- Part of
- DET0457 Detection of Non-Application Layer Protocols for C2
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 |
|---|---|---|
| WinEventLog:Sysmon | EventCode=3, 22 | DC0082 Network Connection Creation |
| NSM:Flow | ICMP/UDP traffic (Wireshark, Suricata, Zeek) | DC0085 Network Traffic Content |
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 |
|---|---|
ProcessContextAllowList | Processes normally allowed to use ICMP/UDP (e.g., ping.exe, DNS resolver). |
ByteTransferAnomalyThreshold | Suspicion if client sends much more data than it receives (e.g., >90%). |
ProtocolUsageBaseline | Baseline which protocols are normal per host or segment (ICMP, UDP, etc.). |