PACKET BLACK HOLE
STANDARD OF NETWORK FORENSIC : PACKET BLACK HOLE âJAPANESE âNet Agent

Frequently Asked Questions of "Packet Black Hole"

1. Powerful Analysis Function
Q.1-1 Do you disclose data format recorded by the PacketBlackHole? (I want to access directly to the data that I want to refer).
A.1-1 Yes, recorded data (pkt file) can be accessed in any way because they are recorded in general libpcap format. Besides, analyzed data can be viewed if you have basic knowledge on sql since they are recorded in mysql data base.

Q.1-2 I want to record the e-mail which is coded by PGP.
A.1-2 PacketBlackHole does not deal with PGP code. However, you can read the e-mail log by the private key and the pass phrase since PGP mail log is recorded.

Q.1-3 Can IRC and ICQ be viewed online?
A.1-3 Yes, IRC (chatting system) is searched in the window of "TCP Session Record" by choosing the item of 'traffic except neither mail nor Web' 'AND' 'Port No.' '6667'. Japanese characters are garbled because code is different. ICQ (the system in which chatting and file transfer is possible among fellows online) is viewed at 'udp port 4000' in the "grep" in the window of gIndex Searchh or is searched in "ICQ" in the window of "Intrusion Detection and Attack Detection". IPMessenger is viewed at 'udp port 2425' in the 'grep' of "Index Search" window.

Q.1-4 Can we search the telnet log?
A.1-4 Yes. As described above, you can search the log in the window of "TCP Session Record" traffic on the item of traffic outside of web mail and at port No. 23. Protocol analysis of telnet is possible and details can be viewed if you access to D->Detail. (Application on TCP/IP corresponds to port No. ftp 21, http (WWW) to 80 and https to 443, respectively).


2. Privacy
Q.2-1 Is it possible to protect mails of board members from a system administrator?
A.2-1 Yes, we have private mail function. Mails of the specific mail addresses are protected and subject, body, attached files and destination address are hidden, but the administrator can look at the mail traffic of the addresses.

Q.2-2 Do you have a good idea for protecting privacy of employees?
A.2-2 Private mail function is recommended. If users declare the private mail by inputting some specific string of letters such as "private" in subject of the mail, the title, body and attached files are hidden. But the administrator can detect the traffic of private mails.

3. Stealth technology
Q.3-1 Teach me stealth technology that PacketBlackHole has.
A.3-1 The PacketBlackHole cannot be detected by any host except for the predefined detecting terminals (hosts) since it does not respond to the command "ping" or port scanning. This means that users with malicious designs cannot make a steppingstone of PacketBlackHole nor they cannot alter system logs or packet data. Stealth function is improved if each port is assigned to each network address since an administrative use port and a port for packet capture are different. But an administrative port can also be shared by a capture port by the same address.

4. Detection and tracing for invasion
Q.4-1 Is the PacketBlackHole prepared for protecting buffer overflow when it detected attacks causing intentional buffer overflow?
A.4-1 Yes. Processing program of PacketBlackHole is written by the language protected for buffer overflow. PacketBlackHole can detect buffer overflow on ordinal servers but it will not be attacked.

Q.4-2 Is it possible to trace the person who is viewing a specific site?
A.4-2 Yes. PacketBlackHole judges from overall data on Mac address, IP address, content of communication, mails sent or received, account name of a server or computer name and so on.

Q.4-3 Explain me how to use optional virus check function and its effectiveness.
A.4-3 Virus check function is effective for decrypted HTTP, SMTP, POP3 and FTP. This function is also effective for part of WinMX and IMAP4. PacketBlackHole can send warning editable notices to a sender, a receiver of the virus and an administrator. Since details of the virus are known, it can be used for virus check service by providers and so on.

5. Easy installation and easy operation
Q.5-1 Explain me set-up conditions and alternation of existing facility.
A.5-1 Purpose for introducing PacketBlackHole is different company by company: some companies have plans to introduce detecting and recording machines in advance and some do not have. But, in general, PacketBlackHole protects network security, improves efficiency of work and manages facilities and resources. PacketBlackHole is a support machine for monitoring. It is fully compatible with your existing network since obtained data can be viewed by using web browser such as internet explorer and so on. Only you do is to add proprietary hardware to the network system. 24 hour monitoring by network administrators is not necessary since PacketBlackHole records all traffic logs and alternation of recorded data is not easy due to its stealth function.

Q.5-2 What is up-grade service?
A.5-2 Up-grade of the software by the up-grade site or up-grade by the CD-ROM is possible for one year after purchase in the case of active license. In the case of hardware breakdown, parts are exchanged.

Q.5-3 The repeater hub, option, is for Fast Ethernet and it can only connect to 100Base/TX, isnft it?
A.5-3 There are three kinds of hubs. The repeater hub sends all data sent from a terminal to every terminal. The switching hub analyzes the data sent from a terminal, detects the destination address and sends it only to the address. The dual speed hub recognizes automatically the speed of the data and can respond each speed. It responds to the two kinds of data transmission speed. PacketBlackHole needs the repeater hub of option in the linefs speeds 100Base/T, if the line is 10Base/T, then it needs repeater hub 10Base/T.

Q.5-4 Do I have to use the repeater hub of option?
A.5-4It is good if you use it. We use the repeater hub of option in tuning of PacketBlackHole. You can use the port mirror function of switching hub, but the copy of the data may be impossible depending on the device's performance.

Q.5-5What is the reason why dual speed hub cannot use?
A.5-5 If data communications are done by 10Base/TX to 10Base/TX, PacketBlackHole cannot get the data. What is the tangible setup of PacketBlackHole at the gateway of LAN connection? Do I need to stop the networks?

Q.5-6 What is the tangible setup of PacketBlackHole at the gateway of LAN connection? Do I need to stop the networks?
A.5-6 PacketBlackHole is good to be set between the router and the firewall. You need not to stop them. The operation is just like to add single stage of the hub.

6. And the Rest
Q.6-1 What is OS of PacketBlackHole?
A.6-1 PacketBlackHole 3.0 based on Linux which specialize in packet acquisition is.

Q.6-2 What does PacketBlackHole do when the data is filled up the disk?
A.6-2 It erases the data in order of the length of time from the disk.

Q.6-3 What is the administrative network card?
A.6-3 It is desirable that the administrative computer interface is separated from data acquisition interface. In doing so PacketBlackHole does not record the data that the administrative computer accessed PacketBlackHole. But it is recorded the log data.

Q.6-4 Can I install the software of PacketBlackHole on the Windowfs drive?
A.6-4 You cannot do. If you do, it does not work enough.

Q.6-5 Do you have authentication methods except password when PacketBlackHole access Web?
A.6-5 There is Web authentication, IP address authentication and Mac address authentication

Q.6-6 Can the data travel through the nets as usual if PacketBlackHole goes down?
A.6-6 The hub is working, so the data can do.

Q.6-7 PacketBlackHole can trace down the person who watch the Web site.How do you define the person?
A.6-7We do by Mac address, IP address, his messages, received messages, the login name of the server and the name of the computer he uses.

Q.6-8 What is the time for retrieval of the obtained data?
A.6-8 It takes about 20 seconds, actual measurement, for e-mail and about 50 seconds for Web to extract from the data of 33GB. If you use index search function, you can get it at the faster pace.

Q.6-9 Is the log data compressed?
A.6-9No, it is not.

Q.6-10 Can I analyze the stored data and make graphs?
A.6-10 PacketBlackHole has report function. For example, how many accesses were done each URL, which user did e-mail send most and so on? You can analyze the data and make graphs by the software like Excel.

Q.6-11 How many e-mails can PacketBlackHole record?
A.6-11 Standard model PBH-FR1/FT1 can record about 3,000,000 e-mails a day and PBH-FE2 can record about 5,600,000 e-mails a day.

Q.6-12 Tell me about UPS.
A.6-12 UPS (Uninterruptible Power Supply) can connect to PacketBlackHole, and use the one of the maker APC. It can quit PacketBlackHole automatically at black out start. Use WOL (Wake On LAN) when it is recovered. It cannot let PBH switch on automatically.

Q.6-13 Tell me about the tape drive.
A.6-13 There is the external tape device (LTO), option, which records the data of PacketBlackHole. We do not recommend any other device. Nor DAT device we do not do also, because the speed is too late.

Q.6-14 Tell me about the tape drive more in details.
A.6-14 The specification of the tape drive is PacketBlackHole T200, and it is not auto-changer method. It is the only collected data that the tapes drive backup. After the data disappears from the hard disc, the backup data can be restored from the tape drive. The PacketBlackHole deletes old files of the hard disc to make room for the data from the tape drive. In the meantime, data collection and analysis are performed continuously and backup by the tape drive is taken all the time automatically.

Q.6-15 Tell me about Raid.
A.6-15 RAID can store backup data outside PacketBlackHole. If it connects with the SCSI board, it will work as an external storage.

Q.6-16 Where is PacketBlackHole installed, in case there is a fire wall in a network?
A.6-16 To capture accesses from the inside, place it inside of the fire wall.

Q.6-17 How many sets of PacketBlackHole were sold?
A.6-17 198 sets of PacketBlackHole were done in Japan from June, 2001 to February, 2003.

Q.6-18 Can download of acquisition data be performed?
A.6-18 Download of the data via the network can be performed on the window. It can also carry out by bundling up with a general-purpose download tool.

Q.6-19 What can be used as searching tools?
A.6-19 General protocol analyzers, binary editors, and some text editors can be done.

Q.6-20 How to scan the host names?
A.6-20 On < System Configuration - Edit Host Name > window, input IP address of DNS server and IP addresses range, from 192.168.0.1. to 192.168.0.254, for example, then press Submit. It takes much time, sometimes 15minutes and other times 30 minutes to scan the names. Please use a control port, when there are both a capture port and a control port.

Q.6-21 Is PacketBlackHole effective as a proof?
A.6-21 Since it is raw data, it is admitted most scientifically as a proof. There is no judicial precedent yet.

Q.6-22 Please let me know about support system.
A.6-22 We provide the send-back and software support. It is in 9:00- 18:00 at weekdays.

Q.6-23 What is the meaning of PacketBlackHole introduction?
A.6-23 It is impossible to consider the life without a network for many people. Human being in ordinary society also lives in network society. Injustice exists in network society as well as in ordinary society. The necessity that a security maker builds healthy network environment instead of the peace organization of our country is imminent.




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