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KFSensor
What it is
KFSensor is a self-hosted Windows honeypot system from KeyFocus Ltd. It detects intrusion attempts by simulating vulnerable services and trojans while keeping the simulated environment under control. The Professional edition monitors every TCP and UDP port and detects ICMP or ping messages. Emulated services include HTTP, HTTPS, SMTP, SMB/CIFS, SOCKS, SQL Server, MySQL, FTP, POP3, Telnet, Terminal Server, and VNC. Users can create simulations in Perl, C, or other supported languages, and Honeyd scripts are compatible. Events can go to SIEM systems such as ArcSight and Qradar, UNIX Syslog, Windows Event Log, external applications, or an ODBC SQL database. Reports and graphs support filters for time, attack type, and visitor location, with configurable alerts including email. Enterprise adds centralized multi-sensor management, remote reconfiguration, and signature updates. Professional costs $599, paid once, and a one-year subscription costs $120 a year for an existing license.
For and against
For
- Monitors every TCP and UDP port
- Emulates many common network services
- Supports SIEM and Syslog destinations
- Custom simulations can use Perl and C
- Provides filtered reports and configurable alerts
Against
- Windows-only platform
- No free plan
- Professional license costs $599, paid once
- Some features require WinPcap or Npcap
The verdict
KFSensor combines broad service emulation with port monitoring, integrations, reporting, and configurable alerts. Buyers should account for its Windows platform, paid licensing, and optional packet-capture dependency.
Who it suits
KFSensor suits Windows security teams that need honeypot-based intrusion detection, service emulation, and event integrations. Enterprise is aimed at organizations managing multiple sensors centrally.
Plans and prices
KFSensor Professional One Year Subscription
requires a previously purchased Professional license; one subscription per license
Read 7 Oct 2026 · kfsensor.net
KFSensor Professional Edition
single stand alone honeypot installation
Read 7 Oct 2026 · kfsensor.net
KFSensor Enterprise Edition
multiple honeypot installations; requires Enterprise Administrator and Sensor licenses
Read 7 Oct 2026 · kfsensor.net
KFSensor Enterprise One Year Subscription
one year of extended support and maintenance
Read 7 Oct 2026 · kfsensor.net
On the record
- Attack response
- It emulates real services to reveal attack behavior while maintaining control and avoiding the risk of compromise.kfsensor.net · read 7 Oct 2026
- Custom emulation
- Users can write simulations in languages including Perl and C, and KFSensor is compatible with Honeyd scripts.kfsensor.net · read 7 Oct 2026
- Encrypted remote management
- Enterprise secures sensor communications with 3072-bit RSA authentication and 256-bit AES encryption, according to the features page.kfsensor.net · read 7 Oct 2026
- Enterprise management
- Enterprise combines events from multiple sensors in a central console and supports remote reconfiguration and centralized signature updates.kfsensor.net · read 7 Oct 2026
- Maker
- KeyFocus Ltd. says it was founded in 1994 and is based in the UK.kfsensor.net · read 7 Oct 2026
- Other integrations
- KFSensor can send alerts to UNIX Syslog, the local Windows Event Log, or an external application, and can optionally store events in an ODBC SQL database.kfsensor.net · read 7 Oct 2026
- Packet capture dependency
- KFSensor works without WinPcap installed, but several features will be disabled; the download page also offers Npcap.kfsensor.net · read 7 Oct 2026
- Purpose
- KFSensor is a Windows honeypot system that detects intrusions by simulating vulnerable system services and trojans.kfsensor.net · read 7 Oct 2026
- Reports and alerts
- The product provides reports and graphs filterable by time period, attack type, and visitor location, plus configurable alerts including email.kfsensor.net · read 7 Oct 2026
- Security
- The maker says KFSensor follows least privilege and does not require Admin or root privileges to function.kfsensor.net · read 7 Oct 2026
- Service emulation
- Emulated services include HTTP and HTTPS, SMTP, SMB/CIFS, SOCKS, SQL Server, MySQL, FTP, POP3, Telnet, Terminal Server, and VNC.kfsensor.net · read 7 Oct 2026
- SIEM integration
- KFSensor sends events to SIEM systems in real time and lists ArcSight and Qradar as supported integrations.kfsensor.net · read 7 Oct 2026
- Support
- License purchases include email support and upgrades for one year, after which an optional subscription extends support and maintenance for another year.kfsensor.net · read 7 Oct 2026
- Traffic monitoring
- Professional monitors every TCP and UDP port and detects ICMP or ping messages.kfsensor.net · read 7 Oct 2026
- Trial and supported Windows
- The Professional free trial download page lists Windows 10, 11, and Windows Server 2016, 2019, and 2022.kfsensor.net · read 7 Oct 2026
