Techniques › T1053.003 › AN0807
AN0807 Analytic 0807
ESXi · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Detects direct modification of crontab entries in /var/spool/cron/crontabs/root or /etc/rc.local.d/local.sh followed by execution of scripts linked to lateral movement or malware persistence.</p>
- Detects
- T1053.003 Cron
- Part of
- DET0290 Cross-Platform Detection of Cron Job Abuse for Persistence and Execution
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 |
|---|---|---|
| esxi:hostd | modification of crontab or local.sh entries | DC0061 File Modification |
| esxi:cron | execution of scheduled job | DC0001 Scheduled Job Creation |
| esxi:vmkernel | spawned shell or execution environment activity | DC0032 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.
| Field | Description |
|---|---|
CrontabFileMonitored | Admins may customize paths in hardened deployments. |
ShellCommandPayload | Flag shell-based persistence indicators in local.sh or cron payloads. |
JobInterval | Time interval of task repetition for outlier identification. |