Figure 9.1 Today`s de facto standard point-and
... Programmer fails to close a backdoor Trojan horse Inserted by hacker on initial access ...
... Programmer fails to close a backdoor Trojan horse Inserted by hacker on initial access ...
1 | I.C.T.C. “International Computer Training Center” www.ictc.gr info
... This class will immerse the student into an interactive environment where they will be shown how to scan, test, hack and secure their own systems. Students then learn how intruders escalate privileges and what steps can be taken to secure a system. Who Should Attend This course will significantly be ...
... This class will immerse the student into an interactive environment where they will be shown how to scan, test, hack and secure their own systems. Students then learn how intruders escalate privileges and what steps can be taken to secure a system. Who Should Attend This course will significantly be ...
Manage security settings with Action Center
... computer more secure. To work properly, some programs might require you to allow them to communicate through the firewall. Here's how to do that: 1. Click to open Windows Firewall. 2. In the left pane, click Allow a program or feature through Windows Firewall. ...
... computer more secure. To work properly, some programs might require you to allow them to communicate through the firewall. Here's how to do that: 1. Click to open Windows Firewall. 2. In the left pane, click Allow a program or feature through Windows Firewall. ...
Discovering Computers Fundamentals 4th Edition
... Identify ways to safeguard against computer viruses, worms, Trojan horses, botnets, denial of service attacks, back doors, and spoofing Discuss techniques to prevent unauthorized computer access and use Identify safeguards against hardware theft and vandalism Explain the ways to protect against soft ...
... Identify ways to safeguard against computer viruses, worms, Trojan horses, botnets, denial of service attacks, back doors, and spoofing Discuss techniques to prevent unauthorized computer access and use Identify safeguards against hardware theft and vandalism Explain the ways to protect against soft ...
Computer Security, Ethics, and Privacy
... Identify ways to safeguard against computer viruses, worms, Trojan horses, botnets, denial of service attacks, back doors, and spoofing Discuss techniques to prevent unauthorized computer access and use Identify safeguards against hardware theft and vandalism Explain the ways to protect against soft ...
... Identify ways to safeguard against computer viruses, worms, Trojan horses, botnets, denial of service attacks, back doors, and spoofing Discuss techniques to prevent unauthorized computer access and use Identify safeguards against hardware theft and vandalism Explain the ways to protect against soft ...
Guide to Operating System Security
... Particularly affect Windows and UNIX systems Typically infect/replace instructions in MBR or Partition Boot Sector Can corrupt address of primary partition May move boot sector to another location if size of virus exceeds space allocated for boot sector Eradication typically involves recreating MBR ...
... Particularly affect Windows and UNIX systems Typically infect/replace instructions in MBR or Partition Boot Sector Can corrupt address of primary partition May move boot sector to another location if size of virus exceeds space allocated for boot sector Eradication typically involves recreating MBR ...
Chap12 Presentation
... • Programs that attempt to modify boot program, operating system, and other programs that normally read from but not modified • Files you download from the Web • E-mail attachments • Files you open • All removable media, such as a floppy ...
... • Programs that attempt to modify boot program, operating system, and other programs that normally read from but not modified • Files you download from the Web • E-mail attachments • Files you open • All removable media, such as a floppy ...
Access Control Policies
... – Use strong (and different) passwords – Change passwords periodically – Do not introduce passwords where not sure if legitimate – For extra security: use multi-factor authentication methods ...
... – Use strong (and different) passwords – Change passwords periodically – Do not introduce passwords where not sure if legitimate – For extra security: use multi-factor authentication methods ...
Permissions
... computer and make it inoperable. Some viruses are only an annoyance. Viruses usually do not replicate (make copies of) themselves on other computers. Removing the virus usually cleans the computer. Sending a virus via e-mail may replicate the virus. In 2008, the Fun.exe virus spread itself v ...
... computer and make it inoperable. Some viruses are only an annoyance. Viruses usually do not replicate (make copies of) themselves on other computers. Removing the virus usually cleans the computer. Sending a virus via e-mail may replicate the virus. In 2008, the Fun.exe virus spread itself v ...
Computer Security and Safety, Ethics, and Privacy
... A password is a private combination of characters associated with the user name that allows access to certain computer resources. A CAPTCHA, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a program developed at CMU to verify that user input is not ...
... A password is a private combination of characters associated with the user name that allows access to certain computer resources. A CAPTCHA, which stands for Completely Automated Public Turing test to tell Computers and Humans Apart, is a program developed at CMU to verify that user input is not ...
Chapter11
... Computer Viruses, Worms, and Trojan Horses What are viruses, worms, and Trojan horses? Virus is a potentially damaging computer program ...
... Computer Viruses, Worms, and Trojan Horses What are viruses, worms, and Trojan horses? Virus is a potentially damaging computer program ...
Computer Security-et..
... browser window, browser program searches your hard disk for a cookie associated with Web site. Step 2. If browser finds a cookie, it sends information in cookie file to Web site. Step 3. If Web site does not receive cookie information, and is expecting it, Web site creates an identification numb ...
... browser window, browser program searches your hard disk for a cookie associated with Web site. Step 2. If browser finds a cookie, it sends information in cookie file to Web site. Step 3. If Web site does not receive cookie information, and is expecting it, Web site creates an identification numb ...
Document
... automates repetitive tasks – Attaches itself to a document that uses macros ( eg: Word, Excel ) ...
... automates repetitive tasks – Attaches itself to a document that uses macros ( eg: Word, Excel ) ...
Information Security and its Implications on Everyday
... t open messages with suspicious or cute attachments Don’t blindly trust the From: filed If you can, turn off HTML mail make sure you enable macro virus protection Turn off the "hide file extensions for known file types" option ...
... t open messages with suspicious or cute attachments Don’t blindly trust the From: filed If you can, turn off HTML mail make sure you enable macro virus protection Turn off the "hide file extensions for known file types" option ...
Current Issues in Maintaining a Secure System
... who posseses the matching private key, the store owner in this case, can open the door and read the message. ...
... who posseses the matching private key, the store owner in this case, can open the door and read the message. ...
The wild world of malware: Keeping your
... Worms are often viewed more as a nuisance than a real threat. However, they may be used to spread other malware or inflict damage against target systems. ...
... Worms are often viewed more as a nuisance than a real threat. However, they may be used to spread other malware or inflict damage against target systems. ...
computer security - GH Raisoni Polytechnic, Nagpur
... 3. Integrity: when the contents of the message are changed after the sender sends it, but before it reaches the intended recipient, we say that the integrity of the message is lost. For example, here user C tampers with a message originally sent by user A, which is actually destined for user B. use ...
... 3. Integrity: when the contents of the message are changed after the sender sends it, but before it reaches the intended recipient, we say that the integrity of the message is lost. For example, here user C tampers with a message originally sent by user A, which is actually destined for user B. use ...
CS 356 – Lecture 9 Malicious Code
... • designed to spread on UNIX systems – attempted to crack local password file to use login/ password to logon to other systems – exploited a bug in the finger protocol which reports the whereabouts of a remote user – exploited a trapdoor in the debug option of the remote process that receives an ...
... • designed to spread on UNIX systems – attempted to crack local password file to use login/ password to logon to other systems – exploited a bug in the finger protocol which reports the whereabouts of a remote user – exploited a trapdoor in the debug option of the remote process that receives an ...
Chapter 19
... • Detection: Once infection has occurred, determine that it has occurred and locate the virus. • Identification: Once detection has been achieved, identify the specific virus that has infected a program. • Removal: Remove all traces of the virus and restore the program to its original state. ...
... • Detection: Once infection has occurred, determine that it has occurred and locate the virus. • Identification: Once detection has been achieved, identify the specific virus that has infected a program. • Removal: Remove all traces of the virus and restore the program to its original state. ...
Guide to Security - Cal Poly Pomona Foundation, Inc.
... devious programmers and are designed to replicate themselves and infect computers when triggered by a specific event. • Example - Macro viruses attach themselves to files that contain macro instructions (routines that can be repeated automatically, such as sending email) and are then activated every ...
... devious programmers and are designed to replicate themselves and infect computers when triggered by a specific event. • Example - Macro viruses attach themselves to files that contain macro instructions (routines that can be repeated automatically, such as sending email) and are then activated every ...
University of Arizona
... devious programmers and are designed to replicate themselves and infect computers when triggered by a specific event. • Example - Macro viruses attach themselves to files that contain macro instructions (routines that can be repeated automatically, such as sending email) and are then activated every ...
... devious programmers and are designed to replicate themselves and infect computers when triggered by a specific event. • Example - Macro viruses attach themselves to files that contain macro instructions (routines that can be repeated automatically, such as sending email) and are then activated every ...
Viruses - University of Windsor
... Attach a (secret) program -- to the regular program for listing the user’s files in a particular format. The attached program may change the file permissions to make them readable by any user. After the program is executed, any one can read the files. ...
... Attach a (secret) program -- to the regular program for listing the user’s files in a particular format. The attached program may change the file permissions to make them readable by any user. After the program is executed, any one can read the files. ...
ROOTKIT VIRUS
... target operating system as a virtual machine, thereby enabling the rootkit to intercept all hardware calls made by the original operating system. ...
... target operating system as a virtual machine, thereby enabling the rootkit to intercept all hardware calls made by the original operating system. ...
Module F - Columbus State University
... improved since that study was done in 1999. Not a week goes by without the announcement of yet another serious overflowtriggered vulnerability. Overflows occur when a program tries to store more data than the allocated memory can hold. The extra data slops over into the adjacent memory area, overw ...
... improved since that study was done in 1999. Not a week goes by without the announcement of yet another serious overflowtriggered vulnerability. Overflows occur when a program tries to store more data than the allocated memory can hold. The extra data slops over into the adjacent memory area, overw ...
Computer virus
A computer virus is a malware program that, when executed, replicates by inserting copies of itself (possibly modified) into other computer programs, data files, or the boot sector of the hard drive; when this replication succeeds, the affected areas are then said to be ""infected"". Viruses often perform some type of harmful activity on infected hosts, such as stealing hard disk space or CPU time, accessing private information, corrupting data, displaying political or humorous messages on the user's screen, spamming their contacts, logging their keystrokes, or even rendering the computer useless. However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without user consent.Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their hosts' computing resources. The vast majority of viruses target systems running Microsoft Windows, employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software. Motives for creating viruses can include seeking profit, desire to send a political message, personal amusement, to demonstrate that a vulnerability exists in software, for sabotage and denial of service, or simply because they wish to explore artificial life and evolutionary algorithms.Computer viruses currently cause billions of dollars' worth of economic damage each year, due to causing systems failure, wasting computer resources, corrupting data, increasing maintenance costs, etc. In response, free, open-source antivirus tools have been developed, and an industry of antivirus software has cropped up, selling or freely distributing virus protection to users of various operating systems. Even though no currently existing antivirus software is able to uncover all computer viruses (especially new ones), computer security researchers are actively searching for new ways to enable antivirus solutions to more effectively detect emerging viruses, before they have already become widely distributed.