In order to determine the flow and types of packets on the network, a packets sniffer program ‘Wireshark’ was used to capture the packets. Wireshark was used to capture 30 minutes of network activity in two different intervals, morning and afternoon. The partial output from the Wireshark capture, from both sessions is shown in figure 4.4; from analysis of the packet sniffer program it can be deduced that the network traffic usage is mainly TCP connections, such as web browsing, file transfer and
Introduction If you’ve ever been a network administrator, the call you dread the most might be one you receive in the middle of the night by some panicked employee stating that a portion of your critical network has gone down. What troubleshooting options are available to provide answers to your network problem? Besides having a proactive helpdesk that can “read” the mind of your network, an important part of troubleshooting involves using a network protocol analyzer. If you’ve done your research
Digital Forensic Digital forensics is the process of uncovering and interpreting electronic data. The purpose of the process is to preserve any evidence from original form in order to perform for investigation purposes with several procedures such as collect, identify and validate the digital information. According to (Kaur & Kaur, 2012) digital forensics is a branch of forensic science concerned with the use of digital information produced, stored and transmitted by computers as source of evidence
Highly Publicized data breach in 2016: Phishing attack that resulted in Snapchat Employee Data Compromise. Snapchat is a photo-video messaging app that gives users the opportunity to record videos, snap photos, add texts as well as drawing and send it to their friends and followers. (Betters, 2015). The Incident Snap Inc. formerly Snapchat Inc. was a victim of a phishing attack in the early months 2016, precisely February, 2016. On Sunday, 28th February, 2016, the company released statements on their
.problem such as bottleneck, traffic overload, retransmission. 5.0 METHODS To measure a performance management on Wi-Fi, I used Wireshark as a medium to tracking all network activity. Wireshark is a packet analyzer software to see visible traffic on network. It also captures data packets in real time and displays them in human-readable format. Figure 1 : WireShark interface 6.0 CONCLUSION As a conclusion, the performance management of network management are one of essential things of
1.1 Preamble Network topology can be defined in many ways since there are many different types of network that depending on the certain amount of user, ability, and purpose. For example, in Multimedia University (MMU) all networks inside our campus are connected through Local Area Network (LAN) to access MMLS for example. While when connected to outside through internet, we call it Wide Area Network (WAN). We are connected to the world via various network topologies, such as Point-to-point, Bus
During a conversation last year with a Houston-based network administrator, I asked, “Is wire sniffing at some random public WiFi hotspot illegal?” “No, not at all. It’s just passive…and besides, anyone stupid enough to pass their sensitive information over an unsecure network gets what they deserve.” As it turns out, he was wrong, but he’s not alone in his confusion. A quick search shows that many other people are curious about the legality of packet sniffing, but that the advice they get is
I. Vulnerability Assessments Reviewing the current network configuration, I have discovered several vulnerabilities in regards to the organization's network. Starting with the current router, the NetGear WGR614 is an 802.11b wireless networking device originally released in 2002 and has an approximate 1650 Ft. range. Outside of no mention of the physical location of the device in the synopsis, which is concerning, a simple review of the device indicates that the device is technologically obsolete
network. Static routing with the router is a good practice it alleviates DDos attacks. Router interfaces not ... ... middle of paper ... ...acks. These systems have integrated within firewalls. Snot is free IDS that can be downloaded for free. Wireshark is a packet analyzer that to captures and displays the data packets. This tool helps users see a data packet and check it for tampering. It is used in conjunction with SNORT. Building and Designing a network can long and tedious task. The time
In the computer age, vulnerabilities and back doors into devices are proving heaven for hackers and hell for administrators. Every week it seems that new vulnerabilities are discovered in different devices. Cisco IOS is no different and numerous vulnerabilities can be found in their devices. The aim of the report is to research vulnerabilities in Cisco's IOS operating system. Tools available in Backtrack 5 will be used to exploit the vulnerabilities. GNS3 will be used to set up a working topology
3. Intrusion-Detection Systems: • Security level: In intrusion-detection system, we have two types: Host-Based IDS and Network-Based IDS The Host-Based IDS is installed on a machine to make sure that the system state when compared, matches with a certain set of baseline. Consider the case where a file-integrity checker like Tripwire is run on the target machine just after installation. A database of file signatures is created for the system and it regularly checks the system files against the safe
the breach had taken place. That’s why notable companies hire a forensic team to prevent being the victims of security attacks. 7.2 JUSTICE TO THE VICTIM ORGANIZATION AND PENALTY TO CRIMINALS Using powerful digital forensic tools like Encase, Wireshark, SANS Investigative Forensics Toolkit, etc to analyze mountains of data quickly and efficiently, proficient forensic experts can track and trace the data breaches and save a victim organization from major loss. 7.3 DATA RECOVERY Data recovery
TOR Onion routing (Syverson) is an anonymous communication technique used to anonymize network traffic. Messages are encrypted recursively and sent to multiple network nodes or onion routers; each router decrypts one layer of the message and passes it on to the next router. This prevents the transport medium to find out who you are; the network does know that onion communication is taking place. Figure 1: An example "Onion", http://en.wikipedia.org/wiki/File:Onion_diagram.svg An onion is a data
Most small to mid-size corporations cannot afford a complete Computer Emergency Response Team (CERT). A lot of large outsource this operation as well. The team being internal or external makes a significant difference in the first stages of an investigation. We will assume that we are working as a forensic contractor. Given the most opportune situation our forensic team should consist of multiple job titles, but some of these may be held by the same person. One very important position is a legal
This paper is going to discuss wireless security from a broad view where I will go into why exactly wireless security is so important, especially today as the ways in which we are communicating is changing dramatically. From there I will discuss the multiple wireless securities that are available to give a better understanding of the options given. Then I will go into why exactly not protecting your wireless can be so dangerous with some descriptions of the most dangerous wireless attacks out there