Port 1029Microsoft DCOM
Port 1029 is frequently associated with Microsoft Distributed Component Object Model (DCOM) communications. DCOM enables software components to communicate directly across networked environments, predominantly within Windows operating systems. While this port is unofficial and dynamic, it's commonly observed during remote procedure calls and system management activities..
- transport
- tcp
- in transit
- cleartext
- assignment
- unofficial
- risk
- 4/10
- lookups
- 10,441
single transport
payload readable on path
used by convention
caution
rank 428 of 993 · top 43%
Technical Details
what runs on :1029Microsoft's Distributed Component Object Model (DCOM) is an extension of COM that supports communication among objects on different computers across a network. It enables distributed applications, facilitating interoperability between software components running on separate machines. DCOM is primarily used in enterprise environments for remote management, automation, and system-level communications.
When applications use DCOM, the initial connection often occurs via TCP port 135 (RPC Endpoint Mapper), which negotiates dynamic ports for further communication. Port 1029 is among these dynamically assigned, ephemeral ports. As a result, DCOM traffic may intermittently utilize 1029 during normal operations such as Windows Management Instrumentation (WMI), remote administration tools, or system monitoring services.
Due to its dynamic nature, port 1029 is not consistently assigned or documented as an official endpoint. Nonetheless, it remains relevant in network traffic analysis to identify remote management activity, system level communications, or potential misuse of the DCOM infrastructure.
Security Information
exposure of :1029risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
remote access averages 4.0 across 110 ports — this one sits level with it.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
unofficial
used by convention, not registered — what answers here varies by deployment
reachable over
tcp
every listening transport is another surface to filter at the edge
security overview
Common Vulnerabilities:
- Unrestricted DCOM access can expose systems to remote code execution vulnerabilities and privilege escalation.
- Attackers may exploit misconfigured DCOM permissions to move laterally within a network.
- Known vulnerabilities include exploitation of Windows RPC endpoints tied to DCOM, such as EternalBlue and related SMB/RPC exploits.
Mitigations:
- Limit DCOM exposure with robust network segmentation and firewall policies to restrict dynamic RPC port ranges.
- Harden permissions via DCOM configuration security descriptors, ensuring only trusted users/groups possess remote access.
- Regularly apply security patches addressing RPC/DCOM vulnerabilities.
- Monitor network activity for anomalous remote management attempts, particularly on dynamic ports like 1029.
Related Ports
the 8 most looked-up other ports in remote access — 110 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8000 | Intel Remote Desktop / Alternate HTTP Port | TCP | Web Services | safe | 84.3k |
| :8888 | D2GS Admin Console | TCP | Remote Access | caution | 83.7k |
| :8881 | Atlasz Secure Server | TCP | Web Services | caution | 67.6k |
| :5938 | TeamViewer | TCPUDP | Remote Access | caution | 65.0k |
| :8291 | Winbox MikroTik Admin | TCP | Security | caution | 62.9k |
| :8008 | IBM HTTP Server Admin | TCP | Web Services | caution | 58.3k |
| :135 | Microsoft EPMAP | TCPUDP | Security | caution | 51.9k |
| :23 | Telnet | TCP | Remote Access | caution | 34.8k |
risk mix of the 8 listed
- safe13%
- caution88%
0 of 8 encrypted