kevmap

TechniquesT1114 › AN1310

AN1310 Analytic 1310

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

<p>Detects file access to mbox/maildir files in conjunction with curl/wget/postfix execution, or anomalous shell scripts harvesting user mail directories.</p>
Detects
T1114 Email Collection
Part of
DET0476 Email Collection via Local Email Access and Auto-Forwarding Behavior

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:SYSCALLopenDC0055 File Access
linux:syslogpostfix/smtpdDC0082 Network Connection Creation
linux:osqueryprocess_eventsDC0032 Process Creation

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
WatchedMailDirsSpecify user mail directories (/var/mail, ~/Maildir)
ProcessNameListTune based on local mail clients or curl usage in environment
TimeWindowDefine how close together access and exfil events must occur

KEV CVEs whose mapped technique this analytic detects

CVEVendor / productState
CVE-2020-0688Microsoft Exchange ServerMapped
CVE-2024-27443Synacor Zimbra Collaboration Suite (ZCS)Mapped
CVE-2024-42009Roundcube WebmailMapped