kevmap

TechniquesT1048.003 › AN0425

AN0425 Analytic 0425

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

<p>Detects abnormal outbound HTTP/FTP connections by local scripts or binaries outside of standard browser activity, following access to local documents or user data.</p>
Detects
T1048.003 Exfiltration Over Unencrypted Non-C2 Protocol
Part of
DET0149 Detection of Exfiltration Over Unencrypted Non-C2 Protocol

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
macos:osquerysocket_eventsDC0078 Network Traffic Flow
macos:osqueryprocess_eventsDC0032 Process Creation
macos:unifiedloglog stream - file subsystemDC0055 File Access
NSM:Flowhttp.log, ftp.logDC0085 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.

FieldDescription
ScriptedClientAllowlistDefines allowed automated agents that may transmit HTTP or FTP data (e.g., backup tools).
PayloadInspectionKeywordListTerms or patterns indicating structured or sensitive data leaving via HTTP/FTP.

KEV CVEs whose mapped technique this analytic detects

CVEVendor / productState
CVE-2021-34473Microsoft Exchange ServerMapped