Hackers use a variety of tools to attack a system. Each of the tools we cover in this
article have distinct capabilities. We describe the most popular tools from each of the
following categories:
- Port scanners
- Vulnerability scanners
- Rootkits
- Sniffers
Later in this article, we use some of these tools in realistic scenarios to demonstrate
how easily even a novice hacker or script-kiddie can gain access to an unsecured
system.
Wednesday, August 4, 2010
Finding Operating System Vulnerabilities
As mentioned previously, hackers first look for vulnerabilities to gain access. Then
they look for operating system (OS) vulnerabilities and for scanning tools that report
on those vulnerabilities.
Finding vulnerabilities specific to an OS is as easy as typing in a URL address and
clicking on the appropriate link. There are many organizations that provide “fulldisclosure”
information. Full disclosure is the practice of providing all information
to the public domain so that it isn’t known only to the hacker community.
Mitre, a government think tank, supports the Common Vulnerability and Exposures
(CVE) dictionary. As stated on their web site (http://cve.mitre.org), the goal is
to provide the following:
A list of standardized names for vulnerabilities and other information security
exposures—CVE aims to standardize the names for all publicly known
vulnerabilities and security exposures2.
Other security sites, such as SecurityFocus, CERT, the SANS Institute, and many
others, provide information about how to determine the vulnerabilities an OS has
and how to best exploit them.
they look for operating system (OS) vulnerabilities and for scanning tools that report
on those vulnerabilities.
Finding vulnerabilities specific to an OS is as easy as typing in a URL address and
clicking on the appropriate link. There are many organizations that provide “fulldisclosure”
information. Full disclosure is the practice of providing all information
to the public domain so that it isn’t known only to the hacker community.
Mitre, a government think tank, supports the Common Vulnerability and Exposures
(CVE) dictionary. As stated on their web site (http://cve.mitre.org), the goal is
to provide the following:
A list of standardized names for vulnerabilities and other information security
exposures—CVE aims to standardize the names for all publicly known
vulnerabilities and security exposures2.
Other security sites, such as SecurityFocus, CERT, the SANS Institute, and many
others, provide information about how to determine the vulnerabilities an OS has
and how to best exploit them.
How Hackers Do It: Tricks, Techniques And Tools
Tricks
A trick is a “mean crafty procedure or practice...designed to deceive, delude, or
defraud.1” Hackers use tricks to find short cuts for gaining unauthorized access to
systems. They may use their access for illegal or destructive purposes, or they may
simply be testing their own skills to see if they can perform a task.
Given that most hackers are motivated by curiosity and have time to try endless
attacks, the probability is high that eventually they do find a sophisticated method
to gain access to just about any environment. However, these aren’t the types of
attacks we address in this article, because most successful intrusions are
accomplished through well-known and well-documented security vulnerabilities
that either haven’t been patched, disabled, or otherwise dealt with. These
vulnerabilities are exploited every day and shouldn’t be.
A trick is a “mean crafty procedure or practice...designed to deceive, delude, or
defraud.1” Hackers use tricks to find short cuts for gaining unauthorized access to
systems. They may use their access for illegal or destructive purposes, or they may
simply be testing their own skills to see if they can perform a task.
Given that most hackers are motivated by curiosity and have time to try endless
attacks, the probability is high that eventually they do find a sophisticated method
to gain access to just about any environment. However, these aren’t the types of
attacks we address in this article, because most successful intrusions are
accomplished through well-known and well-documented security vulnerabilities
that either haven’t been patched, disabled, or otherwise dealt with. These
vulnerabilities are exploited every day and shouldn’t be.
Saturday, July 31, 2010
Comodo AntiVirus Installing
1. Go to Comodo's official site and download Comodo AntiVirus.
2. Save this file to your desktop for easy access.
3. Doubleclick on the file that you just downloaded.
4. Click Yes when it asks if you wish to continue.
5. Click the Next button when the installation wizard starts.
6. Click Yes to accept the license agreement.
7. Click Next to keep the default installation directory.
Creating white list profile, remember to click Start upon restart (Photo by Mahalo)
8. Comodo AntiVirus will now install to your system.
9. When you get a prompt that it wants to create a user-profiled white list. Go ahead and click Install.
10. Comodo AntiVirus will now finish installing.
11. Click the OK button at the license activation window.
12. Now click Finish to finish the installation of Comodo AntiVirus.
13. When your computer starts back up you will be presented with a window that wants to create a whitelist. Click on the Start button.
* -Note that the installation may take several minutes. Don't be alarmed if it's not an instantaneous process.
14. When the scanning process is finished, click Finished.
2. Save this file to your desktop for easy access.
3. Doubleclick on the file that you just downloaded.
4. Click Yes when it asks if you wish to continue.
5. Click the Next button when the installation wizard starts.
6. Click Yes to accept the license agreement.
7. Click Next to keep the default installation directory.
Creating white list profile, remember to click Start upon restart (Photo by Mahalo)
8. Comodo AntiVirus will now install to your system.
9. When you get a prompt that it wants to create a user-profiled white list. Go ahead and click Install.
10. Comodo AntiVirus will now finish installing.
11. Click the OK button at the license activation window.
12. Now click Finish to finish the installation of Comodo AntiVirus.
13. When your computer starts back up you will be presented with a window that wants to create a whitelist. Click on the Start button.
* -Note that the installation may take several minutes. Don't be alarmed if it's not an instantaneous process.
14. When the scanning process is finished, click Finished.
Installing avast! 4 Home Edition
1. Download avast! 4 Home Edition from Avast's website.
2. Save this file to your desktop for easy access.
3. Doubleclick the file you just downloaded.
4. In the window that appears, click Next.
5. Read the information presented, then click Next.
6. The license agreement will now display. Put a dot next to "I Agree" and click Next after you have read this.
7. Keep the default installation directory and click Next.
8. Keep all the typical installation guidelines and click Next.
9. avast! will now show you all the program modules it will install. Click Next.
10. It will now install to your system.
11. You will get prompted whether you want to schedule a boot up scan. Click No.
12. Click Finish to complete the installation and restart your computer.
13. When your computer finishes booting up, it will ask that you register with them,
14. Click on the avast@ Home Registration page button.
The license key window (Photo by Mahalo)
15. When the web page opens, click on I'm a new user and I need a registration key for avast! Home Edition.
16. Fill out the form and click on Register.
17. You will receive an e-mail from register@avast.com within the next 24 hours containing your free product key.
18. Find the license key in the e-mail and copy it to your clipboard.
19. Right-click the blue icon representing the resident protection in the system tray and choose "About avast!"
* Or in the simple interface choose 'Help' -> 'About avast!...'.
20. Press the License key button in the lower right corner.
21. Enter (or paste) the license key into presented text dialog.
22. Click OK and your copy of avast! Home Edition is activated.
2. Save this file to your desktop for easy access.
3. Doubleclick the file you just downloaded.
4. In the window that appears, click Next.
5. Read the information presented, then click Next.
6. The license agreement will now display. Put a dot next to "I Agree" and click Next after you have read this.
7. Keep the default installation directory and click Next.
8. Keep all the typical installation guidelines and click Next.
9. avast! will now show you all the program modules it will install. Click Next.
10. It will now install to your system.
11. You will get prompted whether you want to schedule a boot up scan. Click No.
12. Click Finish to complete the installation and restart your computer.
13. When your computer finishes booting up, it will ask that you register with them,
14. Click on the avast@ Home Registration page button.
The license key window (Photo by Mahalo)
15. When the web page opens, click on I'm a new user and I need a registration key for avast! Home Edition.
16. Fill out the form and click on Register.
17. You will receive an e-mail from register@avast.com within the next 24 hours containing your free product key.
18. Find the license key in the e-mail and copy it to your clipboard.
19. Right-click the blue icon representing the resident protection in the system tray and choose "About avast!"
* Or in the simple interface choose 'Help' -> 'About avast!...'.
20. Press the License key button in the lower right corner.
21. Enter (or paste) the license key into presented text dialog.
22. Click OK and your copy of avast! Home Edition is activated.
Help prevent computer viruses
KGTOON RECOMMEND DO ON YOUR PC
Use an Internet firewall.
Note: Windows 7, Windows Vista, and Windows XP with SP2 have a firewall already built-in and turned on by default.
Visit Microsoft Update to verify your settings and check for updates.
Note: If you've installed the most recent version of Microsoft Office, Microsoft Update will also update your Microsoft Office programs.
Subscribe to antivirus software and keep it current. Microsoft Security Essentials is a free download for Windows 7, Windows Vista, and Windows XP. For more information, see Help protect your PC with Microsoft Security Essentials. Or go directly to the download page.
Never open an e-mail attachment from someone you don't know.
Avoid opening an e-mail attachment from someone you know, unless you know exactly what the attachment is. The sender may be unaware that it contains a virus.
Use a standard user account unless you need to use an administrator account. For more information, see Why use a standard user account instead of an administrator account.
Use an Internet firewall.
Note: Windows 7, Windows Vista, and Windows XP with SP2 have a firewall already built-in and turned on by default.
Visit Microsoft Update to verify your settings and check for updates.
Note: If you've installed the most recent version of Microsoft Office, Microsoft Update will also update your Microsoft Office programs.
Subscribe to antivirus software and keep it current. Microsoft Security Essentials is a free download for Windows 7, Windows Vista, and Windows XP. For more information, see Help protect your PC with Microsoft Security Essentials. Or go directly to the download page.
Never open an e-mail attachment from someone you don't know.
Avoid opening an e-mail attachment from someone you know, unless you know exactly what the attachment is. The sender may be unaware that it contains a virus.
Use a standard user account unless you need to use an administrator account. For more information, see Why use a standard user account instead of an administrator account.
Tuesday, July 27, 2010
PC Tips To Keep You And Your Computer Problem Free And Secure
1. Install an Antivirus – freeware or paid one, lots of them are there. Use virustotal.com service if you want to be almost 100% sure that the new file being used on your PC is virus free. Also keep your antivirus updated.
2. Install a Firewall – Free or commercial version, which ever you can afford, it will keep your PC safe from outside online attacks from hackers. Also keep the
3. Install Antispyware – Everyone hates being spied and so should your PC too. Better have two antispyware with one active at a time. Here I am referring to spyware that can do harm do your PC by monitoring your surfing habits, usernames and passwords, snooping your confidential data on your PC and then sending it all to someone without your knowledge. Don’t forget to keep your antispyware updated.
4. Install Antitrojanware – Hidden malicious program inside an attractive one to give remote access to someone, grab your password to allow someone to break in to your computer. Sometimes a single software pack can do most of the things, i.e. keep viruses, spyware, malware and trojans (hidden harmful codes that get activated on a particular day) away.
5. Install Antikeylogger – No one should come to know what usernames and passwords you typed on your online PC.
6. Install Application Software (browsers, FTP – File Transfer Client, Image editors, Word processors etc.) from reputed sources and not from any source as the file being installed can be infected.
7. Don’t use P2P and torrent clients to download illegal stuff from Net. There is something hidden in these files mostly to cause harm to your PC.
8. Be alert and don’t open emails and attachments from unknown persons.
9. Always buy licensed system software which the base for letting other software operate on it.
10. Ensure you have a backup software to take backups of your files. Also have your PC Create System Restore point automatically whenever installing something new. This will help you in coming back to a working computer state in case the new software malfunctions.
11. Defragment your hard disk to improve the rate it provides data from it. Defragmentation arranges the similar data in continuous way on your hard disk so that hard disk reading process doesn’t have to work a lot searching for the information to load a program or file etc.
12. Install screen savers or switch off monitor when you are not using it (going for half an hour break with some downloads happening in the background), use optimized setting for hard disk (should become idle when not in use) and other devices available in the CMOS setup. This will increase the life of the respective hardware as they should be used only when needed.
2. Install a Firewall – Free or commercial version, which ever you can afford, it will keep your PC safe from outside online attacks from hackers. Also keep the
3. Install Antispyware – Everyone hates being spied and so should your PC too. Better have two antispyware with one active at a time. Here I am referring to spyware that can do harm do your PC by monitoring your surfing habits, usernames and passwords, snooping your confidential data on your PC and then sending it all to someone without your knowledge. Don’t forget to keep your antispyware updated.
4. Install Antitrojanware – Hidden malicious program inside an attractive one to give remote access to someone, grab your password to allow someone to break in to your computer. Sometimes a single software pack can do most of the things, i.e. keep viruses, spyware, malware and trojans (hidden harmful codes that get activated on a particular day) away.
5. Install Antikeylogger – No one should come to know what usernames and passwords you typed on your online PC.
6. Install Application Software (browsers, FTP – File Transfer Client, Image editors, Word processors etc.) from reputed sources and not from any source as the file being installed can be infected.
7. Don’t use P2P and torrent clients to download illegal stuff from Net. There is something hidden in these files mostly to cause harm to your PC.
8. Be alert and don’t open emails and attachments from unknown persons.
9. Always buy licensed system software which the base for letting other software operate on it.
10. Ensure you have a backup software to take backups of your files. Also have your PC Create System Restore point automatically whenever installing something new. This will help you in coming back to a working computer state in case the new software malfunctions.
11. Defragment your hard disk to improve the rate it provides data from it. Defragmentation arranges the similar data in continuous way on your hard disk so that hard disk reading process doesn’t have to work a lot searching for the information to load a program or file etc.
12. Install screen savers or switch off monitor when you are not using it (going for half an hour break with some downloads happening in the background), use optimized setting for hard disk (should become idle when not in use) and other devices available in the CMOS setup. This will increase the life of the respective hardware as they should be used only when needed.
Educational Software,Computer Repair Tips, Tricks, Tweaks, Help
IT Company. For more than 1 years, we have been providing thousands of satisfied users with use-to-eazy and low cost-effective educational software that run on their existing Windows personal computers. We have over English learning e. The price is starting at $22.
Our other computer repair services in ANAND Gujarat(including free online pc repair tips, tricks, tweaks, help) are as follows:
Without security enhanced over your computer, simple computer repair means nothing. We have over 1 years of computer security experience and will help you secure your computer!
* Computer repair.
* Data recovery.
* Website development.
* Clean PC virus.
* Computer networking.
* Computer security.
* Operating system password lost recovery.
* PC clean-up (speed up computer greatly).
* Find free anti-virus software .
* Internet sales promotion.
* Watch internet movies on big screen TV.
Our other computer repair services in ANAND Gujarat(including free online pc repair tips, tricks, tweaks, help) are as follows:
Without security enhanced over your computer, simple computer repair means nothing. We have over 1 years of computer security experience and will help you secure your computer!
* Computer repair.
* Data recovery.
* Website development.
* Clean PC virus.
* Computer networking.
* Computer security.
* Operating system password lost recovery.
* PC clean-up (speed up computer greatly).
* Find free anti-virus software .
* Internet sales promotion.
* Watch internet movies on big screen TV.
DoFollow Sites Finding Stage
*With all of the above being said - it is rather difficult to find sites that are "DoFollow"...however, they are out there! Listed below for your convenience are running lists of multiple categories of sites that are DoFollow, and great candidates for your next !
In getting links, regardless of if they're DoFollow or not, please note that Google and other search engines are rather smart these days.
If you have multiple links pointing to a page from one DoFollow source, or if that source is also linking to other places that are giving you backlinks (such as your Blogspot or Wordpress account), search engines will notice and may devalue your links to the point where they become worthless.
Build links naturally and over time. Provide value and they'll be quality links. Otherwise, you'll hurt your website's link building efforts in the long-run.
*By the way -- when it comes to link building, only the first link pointing to a site counts. Posting more than one hyperlink on the same page to the same source won't help in any way.
*These are the best dofollow sites that I choose for game related blacklinks.
I have just created this list of DOFOLLOW gaming blogs / Do Follow Games related websites.
You can get free backlinks, better SEO, better Alexa Rank and better PageRank by commenting the dofollow blogs below:
http://www.wowfailblog.com/
http://www.gamingplanet.info/
http://biggsuccess.com/
http://www.frogview.com/
http://pc-games-2010.blogspot.com/
http://www.gamingplanet.info/
http://pc-games-2010.blogspot.com/
http://www.pcgametrek.com/
http://computershopper.com/
http://www.pcgametrek.com/zuma
http://saibaba4nd.blogspot.com
In getting links, regardless of if they're DoFollow or not, please note that Google and other search engines are rather smart these days.
If you have multiple links pointing to a page from one DoFollow source, or if that source is also linking to other places that are giving you backlinks (such as your Blogspot or Wordpress account), search engines will notice and may devalue your links to the point where they become worthless.
Build links naturally and over time. Provide value and they'll be quality links. Otherwise, you'll hurt your website's link building efforts in the long-run.
*By the way -- when it comes to link building, only the first link pointing to a site counts. Posting more than one hyperlink on the same page to the same source won't help in any way.
*These are the best dofollow sites that I choose for game related blacklinks.
I have just created this list of DOFOLLOW gaming blogs / Do Follow Games related websites.
You can get free backlinks, better SEO, better Alexa Rank and better PageRank by commenting the dofollow blogs below:
http://www.wowfailblog.com/
http://www.gamingplanet.info/
http://biggsuccess.com/
http://www.frogview.com/
http://pc-games-2010.blogspot.com/
http://www.gamingplanet.info/
http://pc-games-2010.blogspot.com/
http://www.pcgametrek.com/
http://computershopper.com/
http://www.pcgametrek.com/zuma
http://saibaba4nd.blogspot.com
Subscribe to:
Posts (Atom)