Clearly state and explain the major cmputer security threat prevention :The scenario tells a few tales – find one of comparable and list the possible mistake in the scenario…….
Skoudis & Zeltser explain about Hannibal who attacked the FTP server and installed Netcat program to implement a backdoor program of The Clarice Commerce network. In the FTP server he installed a sniffer progam which was able to scan through all the data that was coming via the FTP server. The greatest mistake of Clarice commerce was their failure to encrypt data. Despite the fact that sniffer programs may underperform in networks with switch(s), Hannibal implemented an Address Resolution Protocol (ARP) which was able to redirect traffic on the network, overcoming the switches and subsequently poisoning the cache. It was therefore possible to sniff the data. The sniffer retrieved critical data that related to the customer and internal corporate emails. All these data was not encrypted and therefore pre-exposed the data to a greater risk of loss.
The success of Hannibal relied so much on the fact that the intrusion detection ability of Clarice commerce was wanting and there was even no mechanism to determine and detect patterns of communication that may prove malicious to the information system. The Clarice Commerce also lacked a tool to check file integrity and therefore Hannibal was able to install a user-mode Rootkit undetected. It was necessary for the Clarice Commerce to install a solid tool for checking the integrity of files especially on vital servers like the FTP and the web server.
Comparing the two entities: Hannibal and Clarice Commerce, it was the later which failed. If they were keen enough on their information security, they could be in a position to detect the worm by Hannibal before it even got through the first firewall. A better solution would be to install the patch on time to seal the possible loopholes on the external firewall.
Skoudis, E., Zeltser, L. (2003). Malware: Fighting malicious code. Scenario 3: Silence of the
Worms. Prentice Hall.
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