How The KeyCobra™ USB Hardware Keylogger Works
Record mode
Installation of the hardware USB keylogger in record mode is quick and easy. Simply plug it in between the USB keyboard and the USB port. No software or drivers are required. The USB keylogger will automatically start recording all data typed on the keyboard to the internal flash disk.
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Disconnect the USB keyboard from the USB port at the computer or hub. This can be done even with the computer up and running.
Connect the hardware USB keylogger between the USB keyboard and the USB port. Keystroke logging will start automatically.
Playback mode (Flash Drive)
Once data has been captured in record mode, you can retrieve it on any computer with a USB port. This is done by switching to Flash Drive mode. The USB hardware keylogger and keyboard should be connected in the same way, as in record mode.

Each device has a built-in 3-key combination (by default K, B, S).
Press these 3 magic keys simultaneously to trigger Flash Drive mode.
The keylogger will automatically respond as a mass storage device.

The Flash Drive will contain the file LOG.TXT with a text log of all captured data. Keystroke data is formatted in the same as it would appear on the screen, with special keys in brackets ([Ent], [Esc], [Del] etc.). This file can be viewed and searched with any text editor, such as Notepad or MS Word.

The file LOG.TXT can be copied to the hard drive. The USB keylogger may be then switched back to record mode, by disabling the drive through the operating system.
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More details are available in the KeyCobra USB User Guide.
Configuration options
The USB hardware keylogger may be configured through the file CONFIG.TXT, placed in the Flash Drive root folder. Use any text editor to prepare such a configuration file, containing the following text:
Password=KBS
LogSpecialKeys=Medium
DisableLogging=No
Copy this file to the root folder in Flash Drive mode. The configuration will be loaded on next record mode initialization.

Password sets the 3-key combination for triggering Flash Drive mode. Any three-letter key combination is allowed (sequence is irrelevant). Default value is KBS.
LogSpecialKeys sets the logging level for special keys, such as Enter, Escape, F1...F12 etc. Special keys are logged in brackets, i.e. [Ent]. Allowed values are None (only text is logged), Medium (text with basic function keys are logged), and Full (text with all special keys are logged). Default value is Medium.
DisableLogging allows to disable logging, however does not affect mode switching. Allowed values are Yes (logging disabled) and No (logging enabled). Default value is No.
More details are available in the KeyCobra USB User Guide.
National keyboard layouts
It is possible to enable a national layout for language-adapted keyboards, such as French, German etc. This will allow national characters to get logged properly (including those with Alt Gr), such as ö, ß, ó etc. The following example demonstrates the advantages of applying the German national layout.
| Text logged with layout | Text logged without layout |
| KeyLogger (PS/2 & USB) | Kezlogger )PS-2 / USB= |
To enable a national layout, the appropriate layout file named LAYOUT.TXT must be placed in the hardware keylogger root folder. The file must be copied in Flash Drive mode (no access to the flash disk in record mode). Layout files may be obtained from the CD-ROM attached with the device or from the download section. The flash disks main folder should contain the file LAYOUT.TXT and the standard log file LOG.TXT.

To enable the layout, safely remove the flash disk. On record mode initiation, the layout file will be loaded automatically.
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