| Field name | Offsets (hex) | Offsets (dec) | Field description |
|---|---|---|---|
| signature | 0x00 to 0x03 | 0 to 3 | the signature (file magic) of .hccapx files, it is always the string HCPX |
| version | 0x04 to 0x07 | 4 to 7 | the version number of the .hccapx file format |
| message_pair | 0x08 | 8 | possible values range from 0 to 5 or 128 to 133 (see message_pair table below) 1 |
| essid_len | 0x09 | 9 | the length of the network name (ESSID) |
| essid | 0x0a to 0x29 | 10 to 41 | the network name (ESSID) |
| keyver | 0x2a | 42 | set to 1 if WPA is used, other values (preferably 2) means WPA2 |
| keymic | 0x2b to 0x3a | 43 to 58 | the actual hash value (MD5 for WPA, SHA1 for WPA2) truncated to 128 bit (16 bytes) |
| mac_ap | 0x3b to 0x40 | 59 to 64 | the mac address of the access point (BSSID) |
| nonce_ap | 0x41 to 0x60 | 65 to 96 | nonce (random salt) generated by the access point |
| mac_sta | 0x61 to 0x66 | 97 to 102 | the mac address of the client connecting to the access point |
| nonce_sta | 0x67 to 0x86 | 103 to 134 | nonce (random salt) generated by the client connecting to the access point |
| eapol_len | 0x87 to 0x88 | 135 to 136 | the length of the EAPOL |
| eapol | 0x89 to 0x188 | 137 to 392 | the EAPOL (max 256 bytes) |
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If You Don't Have NetMon Capture File, Snoop Capture File, or Telix Session Capture Software Installed
How To Open .cap File In Kali Linux
How To Open Cap File Type
In order to open your CAP file, you will have to download NetMon Capture File, Snoop Capture File, Telix Session Capture, or another similar software package.
Can't open a.cap file? When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. Just upload your.cap, and it will be converted to a.hccapx file. Of course, you may not want to upload sensitive data to a web site that you do not control. If you don't mind, go for it. Otherwise, you can download the cap2hccapx utility and execute it locally, using the following steps.
If Your Computer is Not Configured to Open CAP Files
How to open a CAPS file You need a suitable software like CaptureServer to open a CAPS file. Without proper software you will receive a Windows message 'How do you want to open this file?' (Windows 10) or 'Windows cannot open this file' (Windows 7) or a similar Mac/iPhone/Android alert. If you cannot open your CAPS file correctly, try to right. Jul 29, 2017 M5A99 FX PRO 2.0. The file I downloaded shows up as a.CAP file. The support guy I talked to said I would have to rename it a.CAP file. When I click it I get a 'what program do you wamt to use to. Open this file' prompt. I'm a self-taught computer user and my teacher left a couple of big holes in my knowledge base. If an application that supports CAP files is installed on user’s system, but is not used to open such files by default, right-click on the file icon and choose 'Open with' option from the menu. Next, select the proper application and check the 'Always use the selected application to open this kind of files' box.
If you have the relevant software, but your computer still won't open the software, you will have to change the file associations on Windows or Mac. Depending on your operating system, you can ensure that your computer always open CAP files using NetMon Capture File, Snoop Capture File, Telix Session Capture, or another program of your choice that uses CAP files.
If that still doesn't work, you can get in touch with your software developer to find out what you can do. You can contact any of these developers for more information or assistance:
| Software | Developer |
|---|---|
| NetMon Capture File | Microsoft Corporation |
| Snoop Capture File | PC Software Company |
| Telix Session Capture | Unknown |
| TTC FireBerd 500 PC Capture File | PC Software Company |
| Ventura Caption | Windows Programmer |
| WWG Domino Capture File | Windows Software |
| WWG LinkView PRO Capture File | Unknown |
| Generic Network Capture Document | Unknown |
| PacketView Pro Packet Trace Data | Klos Technologies Inc. |
| Code Architect Project File | Embedded Systems Academy |
| Shomiti Surveyor Capture File | Unknown |
| ProComm/Telix session Capture File | PC Software Company |
| Sniffer Capture File | Network Associates Technology Inc. |
| Fluke Protocol Inspector Capture File | Microsoft Programmer |
| Capella Music Sheet Data File | Capella Software |
| Agilent LAN Analyzer Capture File | Windows Software |
If the CAP File is Corrupt
In some instances, you may receive an error message stating that the file is corrupt. If you have tried all of the above, and it still doesn't work, download or request a new copy to see if that works.
Open CAP File the Easy Way
If you don't want to download NetMon Capture File, Snoop Capture File, or Telix Session Capture (for whatever reason), and the other options also don't work... that's okay!
Even though some CAP files must be opened in a program for which it was developed (binary format), you may still be able to open it in a universal file viewer such as File Magic. Download File Magic now from the Microsoft Store and open your CAP file!
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