Quick Answer
ssh-client-sync.exe is safe. It's a legitimate SSH client synchronization utility that securely syncs SSH config files, keys, and known_hosts across machines.
Is it a Virus?
✔ NO - Safe
Must be in C:\Program Files\SSH-Client-Sync\bin\ssh-client-sync.exe
Warning
Multiple components may run
One sync daemon, config validator, and notification tasks may run together
Can I Disable?
✔ YES
Close or stop the Sync Daemon; prevent startup via Task Scheduler or service manager
What is ssh-client-sync.exe?
ssh-client-sync.exe is a synchronization utility for SSH client configurations. It securely collects and propagates your SSH settings, keys, and known_hosts across machines or user contexts, enabling consistent, portable access when working on multiple systems or collaborating with teammates.
It runs as a lightweight daemon and helper that uses SSH transport with encrypted channels to synchronize ssh_config, known_hosts, and public keys between endpoints per defined sync rules, ensuring consistent identities across devices.
Quick Fact: SSH client syncs standardize host entries across multiple laptops or workstations, reducing manual setup time and drift in multi-device environments.
Types of SSH Sync Processes
- Sync Daemon: Background service that performs scheduled SSH config syncs
- Config Validator: Validates ssh_config syntax before applying changes
- Key Distributor: Distributes public keys to remote endpoints
- Known Hosts Sync: Synchronizes known_hosts entries across devices
- Conflict Resolver: Detects and resolves conflicting changes in configs
- Audit/Logging: Logs sync activity for auditing and troubleshooting
Is ssh-client-sync Safe?
Yes, ssh-client-sync.exe is safe when obtained from official sources or packaged by your organization.
Is ssh-client-sync a Virus or Malware?
The real ssh-client-sync is NOT a virus. However, malware sometimes disguises itself using similar names.
How to Tell if ssh-client-sync is Legitimate or Malware
- File Location:: Must be in
C:\Program Files\SSH-Client-Sync\bin\ssh-client-sync.exe or C:\Program Files (x86)\SSH-Client-Sync\bin\ssh-client-sync.exe. Any other path may be suspicious.
- Digital Signature:: Right-click the file in Explorer → Properties → Digital Signatures. Should show a valid signature from "SSH Tools LLC" or your vendor.
- Resource Usage:: Normal usage is 0.5-4% CPU during sync and 20-120 MB memory. Persistent high usage when idle is suspicious.
- Behavior:: ssh-client-sync should run on defined schedules or on explicit user triggers. Continuous network activity when idle may indicate malware.
Red Flags: If ssh-client-sync.exe is located in unusual folders (Temp, AppData\Roaming, or System32), runs when Chrome or other apps are closed, has no digital signature, or uses excessive resources constantly, scan with antivirus software. Beware of similarly named files like "ssh-sync.exe" from untrusted sources.
Why Is ssh-client-sync Running on My PC?
ssh-client-sync runs when you have an SSH sync policy configured or when a sync operation is triggered manually or by schedule.
Reasons it's running:
- Active Sync Job: You have an SSH profile configured to sync now; the daemon starts a transfer to update configs or keys.
- Background Daemon: A persistent background service monitors for policy changes and applies scheduled syncs.
- Startup Task: The scheduler or service is set to launch ssh-client-sync at user login.
- Automated Policy: Group policies or enterprise configuration trigger periodic synchronization across endpoints.
- Manual Trigger: You or an admin initiated a sync via CLI, GUI, or automation script.
Can I Disable or Remove ssh-client-sync?
Yes, you can disable ssh-client-sync. It's safe to disable if you do not require cross-device SSH configuration syncing.
How to Stop ssh-client-sync
- End Sync Daemon: Open Task Manager, locate ssh-client-sync.exe, and End Task; or stop the Windows service if installed.
- Disable Startup: Task Manager → Startup tab → Disable SSH Client Sync
- Pause Schedule: Open the ssh-client-sync app and disable automatic schedules or triggers.
- Block Network Access: Configure firewall to block outgoing connections for the ssh-client-sync process.
- Stop Background Apps: In the app settings, turn off 'Continue running background apps when SSH Client Sync is closed'.
How to Uninstall ssh-client-sync
- ✔ Windows Settings → Apps → Apps & Features → SSH Client Sync → Uninstall
- ✔ Control Panel → Programs → Uninstall a program → SSH Client Sync → Uninstall
- ✔ Delete residual folders under C:\Program Files\SSH-Client-Sync and C:\Users\Public\AppData\SSH-Client-Sync
Common Problems: Sync Failures or Latency
If ssh-client-sync is failing or consuming excessive time, check the following common causes and solutions.
Common Causes & Solutions
- Misconfigured endpoints: Verify the sync.json or policy file contains correct hostnames/IPs and reachable endpoints; test connectivity with ping or SSH.
- Permission errors reading keys: Ensure ssh-client-sync has access to the keys directory and that file permissions allow reading private/public keys where appropriate.
- Network connectivity issues: Check firewall rules, VPNs, and DNS; ensure port 22 (or configured port) is open between endpoints.
- Outdated software: Update to the latest release of ssh-client-sync to pick up fixes and security improvements.
- Invalid known_hosts entries: Clean or verify known_hosts entries on endpoints to prevent strict host key checks from failing the sync.
- Conflicts with other SSH tools: Temporarily disable other SSH utilities during sync to avoid file locking or resource contention.
Quick Fixes:
1. Quick Fixes:
2. 1. Open the logs at C:\Program Files\SSH-Client-Sync\logs to identify failures
3. Verify the config at C:\Program Files\SSH-Client-Sync\config\sync.json for correct endpoints
4. Ensure keys are present in C:\Program Files\SSH-Client-Sync\keys and permissions are readable
5. Test network connectivity to remote endpoints (ping or SSH to port 22)
6. Restart the ssh-client-sync service to apply changes
Frequently Asked Questions
Is ssh-client-sync safe to use?
Yes. The legitimate ssh-client-sync.exe is designed to securely synchronize SSH configs, known_hosts, and keys. Always confirm the file path is C:\Program Files\SSH-Client-Sync\bin\ssh-client-sync.exe and that the digital signature matches SSH Tools LLC.
Why is ssh-client-sync running on startup?
If configured, a startup task or service will launch ssh-client-sync to apply scheduled or policy-based SSH syncs automatically when you sign in.
How do I disable or stop ssh-client-sync?
You can stop it by terminating the process, disabling the startup task, and/or stopping the service. Then remove scheduled syncs or adjust policy to manual sync.
Where are SSH keys stored when using ssh-client-sync?
Keys are managed by the sync tool in its designated keys directory (e.g., C:\Program Files\SSH-Client-Sync\keys) with access controlled by file permissions and the host's SSH agent.
How do I configure ssh-client-sync?
Configure a sync policy file (e.g., sync.json) or use the GUI to specify endpoints, folders (config, known_hosts, keys), and sync frequency. Apply the policy to start syncing.
Can I uninstall ssh-client-sync?
Yes. Use Windows Settings → Apps or Control Panel → Uninstall a program to remove ssh-client-sync. Delete residual config directories if desired.