kevmap

TechniquesT1046 › AN1058

AN1058 Analytic 1058

Linux · attack.mitre.org · ATT&CK Enterprise v19.2

<p>Detects use of network scanning utilities or scripts performing rapid connections to multiple services or hosts using auditd and netflow/pcap telemetry.</p>
Detects
T1046 Network Service Discovery
Part of
DET0376 Behavioral Detection Strategy for Network Service Discovery Across Platforms

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 sourceChannelData component
auditd:SYSCALLexecveDC0032 Process Creation
NSM:FlowOutbound TCP SYN or UDP to multiple ports/hostsDC0078 Network Traffic Flow

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.

FieldDescription
PortScanThresholdDefines number of ports targeted per host within a short period.
ToolPatternRegexRegex to match common scanner arguments (e.g., `nmap -sS`, `nc -zv`).
ExpectedScanSourcesTrusted IPs or systems performing routine discovery.

KEV CVEs whose mapped technique this analytic detects

CVEVendor / productState
CVE-2019-11634Citrix Workspace Application and Receiver for WindowsMapped
CVE-2019-13608Citrix StoreFront ServerMapped
CVE-2021-21973VMware vCenter Server and Cloud FoundationMapped
CVE-2023-26360Adobe ColdFusionMapped
CVE-2023-38035Ivanti SentryMapped
CVE-2025-0282Ivanti Connect Secure, Policy Secure, and ZTA GatewaysMapped
CVE-2025-32756Fortinet Multiple ProductsMapped