Techniques › T1133 › AN1006
AN1006 Analytic 1006
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Unexpected inbound or outbound VNC/SSH/Screen Sharing connections from external sources → repeated failed logins followed by success → remote interactive sessions or abnormal file transfers.</p>
- Detects
- T1133 External Remote Services
- Part of
- DET0354 Behavior-chain detection for T1133 External Remote Services across Windows, Linux, macOS, Containers
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 |
|---|---|---|
| macos:unifiedlog | Remote login (ssh) or screen sharing authentication attempts | DC0088 Logon Session Metadata |
| macos:unifiedlog | Inbound connections to VNC/SSH ports | DC0082 Network Connection Creation |
| PF:Logs | External traffic to remote access services | DC0078 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.
| Field | Description |
|---|---|
KnownVNCServers | List of approved VNC/SSH sources. |
TimeWindow | Time correlation between failed attempts and success. |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2014-6271 | GNU Bourne-Again Shell (Bash) | Mapped |
| CVE-2014-7169 | GNU Bourne-Again Shell (Bash) | Mapped |
| CVE-2018-4939 | Adobe ColdFusion | Mapped |
| CVE-2019-0708 | Microsoft Remote Desktop Services | Mapped |
| CVE-2019-11510 | Ivanti Pulse Connect Secure | Mapped |
| CVE-2019-19781 | Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance | Mapped |
| CVE-2019-3396 | Atlassian Confluence Server and Data Server | Mapped |
| CVE-2019-5591 | Fortinet FortiOS | Mapped |
| CVE-2020-1472 | Microsoft Netlogon | Mapped |
| CVE-2020-25506 | D-Link DNS-320 Device | Mapped |
| CVE-2020-5902 | F5 BIG-IP | Stale |
| CVE-2020-8515 | DrayTek Multiple Vigor Routers | Mapped |
| CVE-2021-1497 | Cisco HyperFlex HX | Mapped |
| CVE-2021-1498 | Cisco HyperFlex HX | Mapped |
| CVE-2021-22986 | F5 BIG-IP and BIG-IQ Centralized Management | Mapped |
| CVE-2021-26855 | Microsoft Exchange Server | Mapped |
| CVE-2021-26857 | Microsoft Exchange Server | Mapped |
| CVE-2022-20699 | Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers | Mapped |
| CVE-2023-20269 | Cisco Adaptive Security Appliance and Firepower Threat Defense | Mapped |
| CVE-2023-27532 | Veeam Backup & Replication | Mapped |
| CVE-2023-39780 | ASUS RT-AX55 Routers | Mapped |
| CVE-2023-48365 | Qlik Sense | Mapped |
| CVE-2024-11120 | GeoVision Multiple Devices | Mapped |
| CVE-2024-45195 | Apache OFBiz | Mapped |
| CVE-2025-32756 | Fortinet Multiple Products | Mapped |