Viruses and Worms Operating system security is at the core of a safe, secure operating system. Our computers are vulnerable to corrupt files, compromised data, and system crashes. There are many attack methods used to uncover your personal information. Two of the methods are viruses and worms. A virus is an executable code usually sent in an e-mail attachment or hidden in audio clip, video clip, or game.
Kostadinov goes on to note that most cyberterrorism actions are generally focused on website sabotage and email blasting. In order to prove that the network breach was a terrorist attack the company would need to provide electronic evidence of these types of information warfare. Information warfare is a term often used interchangeably with cyberterrorism but provides a deeper understanding in the shift of how data has become fundamental to society. As governments, companies and people shift to the use of digital information so have the methods used to attack (Gilmer, 2001). In order to combat this aspect of terrorism, the military have adopted computer forensics as part of their defenses (Vacca & Rudolph, 2011).
Port scan is as the name implies, a scan of the open ports on each computer of the network to define which ports are open and what services are running on them. This information can be used to set up an attack on the network by allowing the hacker to bypass vulnerability in the software being run or on any open ports that can be used to gain deeper access to the network. With a port scan the probe sends information to each port on the network and the open ones respond back, this data can be used to determine the easiest way to infiltrate the network. The safest way to defend against this type of probe is using a firewall. Just as in a ping sweep, if you deny access to a port scan requesting information from the network you render them
Communication Proposal and Presentation Sabrina Hunter ENG/135 August 24, 2015 DR. Franklin Communication Proposal and Presentation Firewall System A firewall is a software that stands between your computer and the internet. Having a properly functioning firewall can stop potential threats affecting your computer, but it can also alert you when a problem is occurring as well. Having a firewall can save you and your business from having to spend extra money to get rid of a virus on your computer or becoming a victim by having your computer being a hack. By having a firewall, it stands between your computer and the internet it serves to block unauthorized request passing through your system. The firewall also serves as a packet filter.
Networked Systems Security Task 1 – THREATS AND IMPACT OF NETWORK THREATS There are many types of threats that can damage your computer either temporarily or permanently. Some threats posed may not threaten your computer right away however have the potential to do so. Some threats that present themselves can include physical threats such as the theft of equipment whether that is the monitor, computer etc. Other threats can be harder to find such as viruses, worms or any kind of malware. Understanding these threats allows the organisation to prevent, protect and correct any damage done to his/her computer to an extent.
The name pretty much sums up what these threats are. In this type of unsolicited attack, a series of regular pings often used for basic troubleshooting, are generated and sent out across groups of ip addresses. I t was noted that where a normal administrator would only ping one or two intended destinations, the internet criminal would be more ambitious and perform these sweeps, looking for as many network endpoints that they can be connected to (Conklin, White , Cothren, & Williams, 2004)). One key thing to note is that DNS lookups can also be the result of ping sweeps and port scans, using the same ping utility, but taking things a step further in the infiltration process. The IP addresses ware linked to endpoint names, which gives an attacker access to information as well to produce the end points names.
By proper end user training for anyone involved with the Corporate Techs site, proper scanning of all USB and thumb drives on a test computer being used for this particular site, can mitigate threats from bugs and viruses. Also, by changing all local computer default autorun policies, will disable usage of these USB ports and stop an occurrence from taking place. Last, it’s almost near impossible for an end user to not use a personal laptop during work hours for personal use or for work. But to mitigate further problems from happening, I will implement an encrypted file system for sensitive data. TrueCrypt is a program that I have found efficient that controls over endpoints that enter and exit the internal system.
NAC tools are different from traditional security technologies and practices that focus on file access. While file-level security is useful for protecting data, it does not keep unauthorized users out of the network in the first place. NAC technology, on the other hand, helps businesses lock down their networks against criminals. Network security measures involve three layers: perimeter security (access), authentication, and authorization and consists of questions like who you are, where you are and what do you want (Turban, 2009). Another technology is firewalls.
CISCO has all these to offer. The current system of Patton-Fuller only detects threats that are coming in from outside of the system network and not of the threats that are in the network coming from the inside. The Network Intrusion Detection System would be a great addition to help with the threats from the inside. CISCO also has Firewall that could be used as another addition to the current network which will help with almost near perfect protection of the Network Traffic. CISOC has many different options of routers and appliances that would help the current system and become a total protection
Simple viruses are dangerous; it uses available memory and can bring down an entire system, there are viruses that can bypass security systems and networks. To protect your computer system from this type of malicious code, you can install and use an antivirus program. This utility scans hard disk drives for viruses, worms and Trojan horses and removes, fixes or isolates any threats that are found. Most antivirus programs include an auto-update feature that enables the program to download profiles of new viruses so that it can check for the new viruses on your system as soon as they are discovered. However, there is another kind of software that can be used to protect your computer and personal information, which is spyware this is software that gathers user information without his or her knowledge, for advertising purpose.