Auditing Operating Systems and Networks Question Paper

Which of the following refers to a piece of code designed to cause harm that is intentionally inserted into a software system and will activate upon the occurrence of some predetermined data, time, or event?

A computer is secure if you can depend on it and its software to behave as you expect I this assignment I will writer about how Linux provides security to you information. The major technical areas of computer security are usually represented by CIA confidentiality, integrity, and authentication or availability. It means that information cannot access by unauthorized people.

Encrypted Outbound Sessions – an encrypted interactive session by an adversary which takes advantage of less restrictive outbound connections

The authentication process is a necessity for safeguarding systems against various forms of security threats, such as password-cracking tools, brute-force or wordbook attacks, abuse of system access rights, impersonation of attested users, and last but not least reply attacks just to name a

Formal user access control procedures must be documented, implemented and kept up to date for each application and information system to ensure authorised user access and to prevent unauthorised access. They must cover all stages of the lifecycle of user access, from the initial registration of new users to the final de-registration of users who no longer require access. These must be agreed by IDI. User access rights must be reviewed at regular intervals to ensure that the appropriate rights are still allocated. System administration accounts must only be provided to users that are required to perform system administration tasks.

If a ping is successful, it means that the packets that were sent out were

Rootkit – Rootkit is a software that is downloaded onto a computer to ide the compromised operating system. This can allow other viruses or malware to come and make it look like it’s a necessary file for the computer. Even if you use an anti-virus, it will look at it but will think it’s a necessary file for the computer. The longer the rootkit is installed the harder it is to undo the damages

Ralph Langner’s article on the Stuxnet worm discusses the hardware, distribution and targets of the attack. He also goes into detail regarding the outlook of future attacks and what we can do to prevent them.

System/application attacks fall within three categories: denial or destruction, alteration, and disclosure. This paper will cover some common system/application domain vulnerabilities: unauthorized physical and logical access to resources, weaknesses in server operating system and application software, and data loss.

When system administrator sent a ping request using a computer technology called ICMP echo request, the machine received the echo request packet and will send a reply

Viruses and worms are malicious programs that self-replicate on computers or through computer systems without the user being cognizant. Worms are a series programs that repeat themselves from system to system minus the use of a host fie. Worms use methods to infiltrate remote computers and launch replicas of themselves like email messages or coping files to an accessible disk. A computer virus is a

Computer viruses are minute program which is “embedded inside an application or within a data file which can copy itself into another program“(Adams et al, 2008 ) for the sole determination of meddling with normal computer operations. The consequences may range from corruption and deletion of data; propagation of virus on to network and deployment through attachments through emails in order to further creating havoc to all associated computing devices.

The system should be able to block attempts and protect its configuration files as well as logs through cryptographic hashing.

When engaged in auditing a public firm, such as Apollo Shoe Inc., an auditor must determine when to trust in the company’s internal controls and when to ascertain auxiliary testing methods are obligatory to analyze control risks. The sales and collection cycle is rather a substantial fraction of the audit because this unique segment employs a multitude of documentation and records ranging anywhere from customer and sales orders, shipping documents, credit memos, and general journal entries; therefore, a working

What is Operating System Security, Operating system security is the process of ensuring OS integrity, confidentiality and availability also OS security refers to specified steps used to protect the OS from threats, viruses, worms, malware or remote hacker. OS security include all avoiding-control techniques, which safeguard any computer information from being stolen, edited or deleted if OS security is included. OS security allows different applications and programs to perform required tasks and stop unauthorized interference. OS security may be applied in many ways. We 're going to discuss following topics in this article. A brief description about security and what are the types of encryption and what is Authentication, One Time passwords, Program Threats, System Threats and Computer Security Classifications.