kevmap

TechniquesT1210 › AN0328

AN0328 Analytic 0328

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

<p>Links inbound network access to SSHD/SMB/NFS/Databases or custom daemons with subsequent daemon crash/restart, core dump, or spawning of shells/reverse shells from the service context, indicating remote exploitation.</p>
Detects
T1210 Exploitation of Remote Services
Part of
DET0118 Exploitation of Remote Services – multi-platform lateral movement detection

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
linux:syslogkernel|systemd messages indicating 'segmentation fault'|'core dumped'|'service terminated unexpectedly' for sshd, smbd, vsftpd, mysqld, httpd, etc.DC0038 Application Log Content
auditd:SYSCALLexecve of /bin/sh,/bin/bash,/usr/bin/curl,/usr/bin/python by service accounts (e.g., apache, mysql, nobody) immediately after inbound network activity.DC0032 Process Creation
NSM:FlowInbound connections to monitored service ports from external or unusual internal sources; rapid follow-on lateral connections from the same host.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.

FieldDescription
ServiceNamesLinux daemons to watch (sshd, smbd, nfsd, httpd/nginx, mysqld, postgres, redis).
CoreDumpPathsPaths indicating crash artifacts (/var/crash, /var/lib/systemd/coredump).
ShellSpawnAllowlistPaths/users allowed to spawn shells from services (default: empty).
TimeWindowCorrelation window (default 10m).

KEV CVEs whose mapped technique this analytic detects

CVEVendor / productState
CVE-2021-41773Apache HTTP ServerMapped
CVE-2021-42013Apache HTTP ServerMapped
CVE-2023-0669Fortra GoAnywhere MFTMapped
CVE-2024-54085AMI MegaRAC SPxMapped