Is it a Virus?
✔ NO - Safe
Must be located in C:\Program Files\Radmin Server 3\rserver.exe or C:\Program Files\Radmin Viewer 3\radmin.exe
Warning
Multiple instances may run
RAdmin may spawn separate processes for active sessions or services
Can I Disable?
✔ YES
Close sessions or stop services to prevent remote connections when not needed
What is radmin.exe?
radmin.exe is the executable component of the RAdmin remote administration tool used to initiate and manage remote connections between a client and a server. It enables remote control, file transfer, chat, and administrative tasks across networked systems when authorized.
RAdmin uses a client-server protocol over TCP to allow authenticated remote access. The radmin.exe process handles remote control sessions, data transfers, and console commands, often spawning dedicated child processes for each session.
Quick Fact: RAdmin has been used for legitimate admin tasks since the 1990s; ensure you use a current, licensed version to reduce security risks.
Types of RAdmin Processes
- Server Process: rserver.exe handles incoming connections and host-side control
- Viewer Process: radmin.exe on the client side for remote control
- Communication Listener: Daemon-style listener for inbound remote session requests
- File Transfer Module: Component responsible for remote file transfers
- Audit/Log Module: Keeps session logs and activity records
- Background Service: Optional service to maintain remote connectivity
Is radmin.exe Safe?
Yes, radmin.exe is safe when it's the legitimate file from Famatech downloaded from official sources.
Is radmin.exe a Virus or Malware?
The real radmin.exe is NOT a virus. However, malware can imitate its name or misuse the tool to gain unauthorized access.
How to Tell if radmin.exe is Legitimate or Malware
- File Location: Must be in
C:\Program Files\Radmin Server 3\rserver.exe or C:\Program Files\Radmin Viewer 3\radmin.exe. Any other path is suspicious.
- Digital Signature: Right-click the executable in Explorer or Task Manager -> Properties -> Digital Signatures. Should show "Famatech Ltd" or official signer.
- Resource Usage: Normal usage is 1-15% CPU per active session and 40-150 MB total memory. Constant spikes may indicate compromise.
- Behavior: Radmin should only run when an authorized remote session is active. Background processes requiring consent may be legitimate but verify.
Red Flags: If radmin.exe is found outside official folders, runs without a user-initiated session, lacks a valid signature, or shows unexpected network activity, scan for malware and review remote access policy.
Why Is radmin.exe Running on My PC?
radmin.exe runs when a remote administration session is active or when the RAdmin service is configured to start with Windows.
Reasons it's running:
- Active Remote Sessions: A current session with a remote host creates a running radmin.exe process on both ends.
- Background Service or Agent: RAdmin may install a background service to maintain connectivity and enable quick re-connections.
- Startup Program: RAdmin may be set to launch at user login or system startup to support unattended administration.
- Scheduled Maintenance Tasks: Automated tasks or remote maintenance jobs can trigger the executable to run briefly.
- Network or Policy Triggers: Group policies or management tools may start the client/agent as part of remote management.
Can I Disable or Remove radmin.exe?
Yes, you can disable radmin.exe. If you don't need remote access, close sessions and remove the software via the add/remove programs flow.
How to Stop radmin.exe
- End Active Sessions: In the RAdmin client, disconnect from all remote hosts or close the viewer.
- Close the Application: Exit the RAdmin Viewer or Server interface.
- Disable Startup: Task Manager > Startup tab > Disable Radmin entries.
- Stop Background Services: Open Services (services.msc) and stop any RAdmin Server/Agent services.
- Uninstall: Windows Settings > Apps > Radmin Server/Viewer > Uninstall; reboot.
- Block Network Access: Configure firewall to block ports used by RAdmin (default 4899).
How to Uninstall Radmin
- ✔ Windows Settings → Apps → Apps & Features → Radmin Server/Viewer → Uninstall
- ✔ Control Panel → Programs → Uninstall a program → Radmin Server/Viewer → Uninstall
- ✔ Restart the computer after uninstall
Common Problems: High CPU or Memory Usage
If radmin.exe is consuming excessive resources or behaving unexpectedly, review session activity and recent changes.
Common Causes & Solutions
- Active remote session with video or large data transfer: Pause or terminate the session; check network usage; reduce thumbnail or screen update rate.
- Background Agent running in unattended mode: Verify necessity; disable background agent if not required; restart service after changes.
- Outdated RAdmin version: Update to the latest build from official source and apply patches.
- Malware masquerading as radmin.exe: Scan with reputable antivirus; verify file location and signature as in verification steps.
- Misconfigured firewall or network issues: Review firewall rules, port forwarding, and VPN settings affecting RAdmin traffic.
- Large file transfers or screen sharing: Limit transfers; schedule heavy operations during idle times.
Quick Fixes:
1. Open RAdmin Task Manager or viewer to identify heavy sessions
2. Pause or end any active remote sessions
3. Update to the latest RAdmin version from the official site
4. Review and disable unnecessary background components
5. Run a full malware scan and verify digital signatures
Frequently Asked Questions
Is radmin.exe a virus?
No, the legitimate radmin.exe from Famatech is not a virus. Ensure the file is located in C:\Program Files\Radmin Server 3\rserver.exe or C:\Program Files\Radmin Viewer 3\radmin.exe and has a valid signature from Famatech Ltd.
Why is radmin.exe using so much CPU?
High CPU can occur during active remote sessions, high-resolution screen sharing, or data transfers. Check the RAdmin task manager, close unnecessary sessions, and ensure you’re using updated software.
Can I delete or uninstall Radmin?
Yes, you can uninstall Radmin through Windows Settings → Apps or Control Panel. Back up any required remote access data, then reinstall only if needed.
Can I disable Radmin from starting automatically?
Yes. Disable startup entries in Task Manager or stop the Radmin service in Services. This prevents automatic launches at system boot.
How do I verify radmin.exe is legitimate?
Check the file path, confirm the digital signature (Famatech Ltd), and verify network behavior and service presence before trusting remote connections.
What ports does Radmin use?
Radmin commonly uses TCP port 4899 by default. Confirm your configuration and firewall rules to ensure proper access control.