Scanarange of com puters: Select this optionto scananum ber of com puters defined throughanIPrange. Scanalist of com puters: Select this optionto im port alist of targets fromafileor to select targets fromanetw ork list. Scancom puters intest file: Select this optionto scantargets enum erated inaspecific text file. Scanadom ain or w orkgroup: Select this optionto scanall targets connectedto adom ain or w orkgroup. V u ln e ra b ility le v e l: The average vulnerabilty le.
Betam s a fa rt of most t. It is recom m endedtorunafull scanat least onceevery2 w eeks. Reproduction is Strictly Prohibited M o d u le 0 3 - S c a n n in g N e tw o rk s m Acustomscanis a netw orkaudit basedon param eters, w hichyou configure onthe flybefore launchingthe scanning process. Click S y s t e m In fo rm atio n in die light side panel; it shows all die details of die system information D o this byanalyzingand correctlyinterpretingthe inform ationcollectedand generatedduringanetw ork securityscan.
Reproduction is Strictly Prohibited M o d u le 0 3 - S c a n n in g N e tw o rk s m Ahighvulnerability level is the result of vulnerabilities or m issing patches w hose average severityis categorizedas high. Scheduledscans canbe set toexecuteonce or periodically.
TfaraaLgi p. Compjters By rfeUai If ves, how? A11 administrator and an attacker can use die same tools to fix or exploit a system. If an attacker gets to know all die information about vulnerable computers, diey will immediately act to compromise diose systems using reconnaissance techniques. Therefore, as an administrator it is very important for you to patch diose systems after you have determined all die vulnerabilities in a network, before the attacker audits die network to gain vulnerable information.
Also, as an e t h ic a l h a c k e r and n e tw o rk a d m in is tra to r for your company, your job is to carry out daily security tasks, such as n e tw o rk in v e n to ry , service upgrade s c h e d u le s , and the m o n ito rin g of host or service uptime. So, you will be guided in diis lab to use Nmap to explore and audit a network. You are performing a network inventory for r o J the virtual machine. Click S c a n to start scantling the virtual machine.
After the scan is c o m p le t e , Nmap shows die scanned results. Click the results. Nmap also displays die the scan. Click the H o s t D e t a ils tab to see die details of all hosts discovered during the intense scan profile.
Now, click the S e r v i c e s tab located in the right pane of the window. This tab displays the li s t of services.
The current version of Microsoft Windows is not supported. Now, to perform a Xmas Scan, you need to create a new profile. On the P r o file tab, enter Xm as Scan in the P r o file n a m e text field. Click the S c a n tab, and select s c a n s : drop-down list. UDPscanis activated w iththe -sUoption. Enter the IP address in die T a r g e t : field, select the from the P r o file : field and click S c a n. Y ousendan INITchunk, asifyouw ere goingto open areal associationandthenw ait for aresponse.
Nmap scans the target IP address provided and displays results on the N m a p O u tp u t tab. Xmas Scan Scani izc Click the S e r v i c e s tab located at the right side of die pane. It all die services of that host. To perform a 1 1 1 1 1 1 scan for a target IP address, create a new profile. On die P r o file tab, input a profile name text field. Instead, aunique side-channel attackexploits predictableIP fragm entationIDsequence generationonthe zom bie host togleaninform ation about the openports on thetarget.
Such a feature is ripe for abuse on many levels, so most servers have ceased supporting it. Now select the option from the T C P s c a n : drop-down list. T his random izationis norm ally desirable, but youcan specify-r for sequential sortedfromlow est to highest port scanning instead.
Click S a v e Changes to save the newly created profile. This can slash scanning times. Nmap scans the target IP address provided and displays results in O u tp u t tab. Attackers send an A C K probe packet with a random sequence number.
No response means the port is filtered and an R S T response means die port is not filtered. It is necessaryto update the database onlyif youhaveaddedor rem ovedN SEscripts from thedefault scriptsdirectory orifyouhavechangedthe categories ofanyscript. Theyareusedfor port scanningandhost discovery.
B ydefault, N m apcalculates aneverchangingideal parallelism basedon netw ork perform ance. Nmap maintains a running timeout value for determining how long it waits for a probe response before giving up or retransmitting the probe.
This is calculated based on the response times of previous probes. When Nmap receives no response to a port scan probe, it can mean the port is filtered.
Or maybe the probe or response was simply lost on the network. Some hosts simply take a long time to scan. This may be due to poody performing or unreliable networking hardware or software, packet rate limiting, or a restrictive firewall. The slowest few percent of the scanned hosts can eat up a majority of the scan time.
This option causes Nmap to wait at least the given amount of time between each probe it sends to a given host. This is particularly useful in the case of rate limiting.
A ll scanned ports on Nmap's dynamic timing does a good job of finding an appropriate speed at which to scan. Sometimes, however, you may happen to know an appropriate scanning rate for a network, or you may have to guarantee that a scan finishes by a certain time.
Xmas Scan. Active discovery means that we send packets to the devices in order to obtain responses.. IPv6 addresses always contain 2 or more colon characters and never contain periods. Once it receives a response, it sends subsequent packets to the responding MAC address. MC 0. Ic a a t Tinic a a t Onieaae Ur.
Pj 11! The purpose of this tool is to rapidly sweep your subnet for IPv4 connected devices. Uncheck w e ResoKr? H one. It can also listen for ICMP packets. The sources of the incoming connections are shown in the results list and are logged to a SQLite database. Ih it too! Dano limitations. Don't forget td nght didc m the results for a menu with more opaons. In other words, the full version w i be a bit faster.
You can determine the upstream internet provider s that service a network connected device. Try0, hen ry lire. Notice the dfference. Manual Toots alij I1 0. Scan C irp lrtr. S can and map Layer 1. It's important to remember switches and hubs are Layer 2 Ethernet address devices that don't have Layer 3 IP address information. Cored I D isco ver Configuafon.. M o d u le 0 3 - S c a n n in g N e tw o rk s Mapping a Network Using Friendly Pinger Friendly Pingeris a user-frie n d lyapplicationfor netirork administration, m o n ito rin g , andinvento ry.
Friendly Pinger will display IP-address of your computer and will offer an exemplary range of IPaddresses for scanning 5. In the lower part of the map a TraceRoute dialog window will appear.
U Uadate Save.. Sava At Create Setup Rightclick it. A Device configuration dialog window will appear. For example: Help Timeout allows to increase searching, but you can miss some addresses.
You will see you name as the map author in the appeared dialog window The inquiry is completed. R em o ve tick from devices, which you d on t want to add on the map?
A message is always sent to an IP address. If you do not specify an address but a hostname, this hostname is resolved to an IP address using your default DNS server. Your network administrator should do it for you. Same with the proxy server.
MAC addresses. It alsoprovidesth eability tolocally audita sp ecific m a c h in e for vulnerabilities. Only run scfbveic from p ubltihen yen bust. T h e N essus - InstallShield Wizard a p p e a r s. To continue, ddc Next. Tenable Network Security, Inc. CEH Cheatsheet. CEH Read Topics. CEH Tools. View code. CEHv9-Notes Personal and Public Notes All notes listed below are very useful, but to save time, you should read the most useful and important ones first. Options: netcat, hping3, whois, maltego - ans: maltego", where the options usually consist of popular tools, and half of the options are definitely out.
What do you do next? Releases No releases published. Ftotf Host All die data sniffed by spoofing and forwarded by die WuiArpAttackerlP- forward fiinctions are counted, as shown die main interface.
Normal 88 10! Online Nor Normal 41 0 30 1 0 0. HoU Click S ave to save the report. Select a desired location and click Save die save die report.. Lab Analysis Analyze and document die scanned, attacked IP addresses discovered die lab. An attacker, Test your too, can use tliis tool to gain all such information and can set up a rogue DHCP server serving clients with false details.
Securely configure name servers to reduce the attacker's ability to corrupt a zone hie with die amplification record. Tins lab will teach you about using other network analyzers such as Capsa Network Analyzer to capture and analyze network traffic. Time: 20 Minutes Overview of Sniffing Sniffing is performed to collect b asic inform ation of die target and its network. It helps to find vulnerabilities and select exploits for attack. It determines network information, system information, password information, and organizational information.
Sniffing can be A ctive or Passive. Launch the S ta rt menu by hovering the mouse cursor on the lower-left corner of the desktop.
Module 08 - Sniffers 2. Type the activation key that you receive your registered email and click N ext. Please c o n tact capsafree colasoft. Continue to click N ext on the Activation Guide and click Finish. Packets Byte Uhaari Capsa m ake it easy to Plugin module loaded: m o n ito r and analyze MSN Yahoo Messenger n e tw o rk tra ffic w ith its in tu itive and in fo rm a tio n - ric h tab views. Module 08 - Sniffers 6. Name IP Packe Set Capture Fitter D Unknown Full Analysis!
D ash b o ard provides various graphs and charts of the statistics. You can view the analysis report in a graphical format the D ashboard section ol N ode Explorer. J3I C1cote IrallH. Module 08 - Sniffers The Summary tab provides full general analysis and statistical information o f the selected node in the Node Explorer window.
Broadcast 4JKS. UtilUotioii Ourt idle. The D iagnosis tab provides the real-time diagnosis events o f the global network by groups o f protocol layers or security levels. With tins tab you can view the performance o f the protocols Sjstar Double-click the highlighted D iagnosis Event to view the detailed information o f this event.
Packet log. Packet B! L- The Protocol tab lists statistics o f all protocols used network transactions hierarchically, allowing you to view and analyze the protocols. The Physical Endpoint tab lists statistics o f all MAC addresses that communicate the network hierarchically. O n the IP Endpoint tab, you can easily find the nodes with the highest traffic volumes, and check if there is a multicast storm or broadcast storm your network.
Module 08 - Sniffers C Q a s a delicate work, network analysis always requires us to view die original packets and analyze them. However, no t all the network failures can be found in a very short period. Sometimes network analysis requires a long period o f monitoring and must be based on the baseline o f die normal network. Y Prrtrrel. AMfc09 co 1s! Module 08 - Sniffers m Imret leapt. IP Conversations Double-click a conversation the IP Conversation list to view the full analysis o f packets between two IPs.
Here we are checking the conversation between Y Prc4c-rcl. A window opens displaying full packet analysis between Double-click a node to display the full analysis ol packets. A Full A nalysis window is opened displaying detailed inform ation of conversation between two nodes. The lower pane o f this tab gives you related packets and reconstructed data flow to help you drill down to analyze the conversations.
Oil the Matrix tab, you can view the nodes communicating the network by connecting them lines graphically. The weight ot the line indicates the volume ot traffic between nodes arranged an extensive ellipse. You can easily navigate and shift between global statistics and details o f specific network nodes by switching the corresponding nodes the Node Explorer window. The P acket tab provides the original inform ation tor any packet. Double-click a packet to view the full analysis information o f packet decode.
Eiftora 5 1e I3. Protocols may be I3. More n Knowl«iqrbale.. Select a packet and we can see its hex digits as well as the meaning o f each field. The figure below shows the structure o f an ARP packet. This makes it easy to understand how the packet is encapsulated according to its protocol rule.
Email com m unications, etc. The Report tab provides 27 statistics reports from the global network to a specific network node. You can click the respective hyperlinks tor inform ation or you can scroll down to view the complete detailed report. XO KB 1. M o d u le 08 - Sniffers Click Stop toolbar after completing your task. Analyze how Capsa affects your network traffic, while analyzing the network.
What types of instant messages does Capsa monitor? Determine it the packet buffer will affect performance. If yes, then what steps can you take to avoid or reduce its effect on software? Test your Attackers listen to the conversation occurring between two hosts and issue packets knowledge using the same source IP address.
These sorts of attacks e a Workbook review can cause various types o f damage, including die injection into an existing TCP connection of data and the premature closure o f an existing TCP connection by die injection of counterfeit packets with the FIN bit set. To be an expert ethical hacker and penetration tester, you must have sound knowledge o f sniffing network packets, performing ARP poisoning, spoofing the network, and DNS poisoning.
Another use of a packet analyzer is to sniff passwords, which you will learn about tins lab using die Wireshark packet analyzer. Lab Objectives — Tools The objective of tins lab is to demonstrate the sniffing teclnnque to capture from dem onstrated in multiple interfaces and data collection from any network topology.
Networks use broadcast technology to send data. Data transmits dirough die broadcast network, which can be read by anyone on the odier computer present on die network. Usually, all the computers except the recipient of die message will notice diat die m essa g e is not meant for diem, and ignore it. Many computers are programmed to look at even' message on die network. If someone misuses die facility, they can view m essage, which is not intended of odiers.
Before starting tins lab, login to the virtual machine s. Capturing Packet 2. O n the host machine, launch the Start menu by hovering the mouse cursor on the lower-left corner o f the desktop.
Click Wireshark to launch the application. The Wireshark main window appears. Telephony Toolt intermit Help f t interface!.. The Wireshark Capture Interface window appears. The interface should show some packets passing through it, as it is connected to the network. See the wiki 0! Traffic informs o f packets generated through the com puter while browsing the Internet.
Stop the running live capture by clicking the icon m on the toolbar. Wirfstiark 1. Clear Apply Scr. MSFT S. Packets: D J! SI A S Now, go to Edit and click Find P acket Module 08 - Sniffers Tc!
Standard c 1. T things on your network iT titter Add P«ck«t Comment.. The Wireshark: Find P acket window appears. Click Find. Wireshark doesn't send FHter: pwd packets on the network or do other active tilings except for name Search In String Options Direction resolutions, but even that can be disabled. Wireshark will now display die sniffed password from die captured packets. Lab Analysis Analyze and document die results related to die lab exercise. Evaluate die protocols that are supported bv Wireshark.
Determine the devices Wireshark uses to capture packets. By merely capturing enough packets, attackers can Test your extract the user name and password if the victim authenticates themselves a public network especially into a website without an HTTPS connection. As preventive measures an administrator an organization should always advise employees not provide sensitive information public networks without an HTTPS connection.
Man-in-the-middle attacks come many variations and can be carried out on a sw itched LAN. Launch your W indows Server virtual machine Victim Machine. Man-ln-The-Middle 2. Launch your W indows 8 virtual machine Attacker Machine. Attack 3.
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