If you think your computer has been hacked, and have Norton installed on your computer, the best option to rule out a threat infection is to perform a full system scan. However, there may be instances where the scan did not detect any threat, or you cannot perform a scan. In these scenarios, we recommend that you run a scan using Norton Power Eraser. Norton Power Eraser is a free, downloadable tool that uses aggressive methods to detect threats.
Many Norton offerings come with an additional benefit called the Norton Virus Protection Promise, which includes access to Norton experts who can work with you to diagnose and remove viruses should you run into any problems during your subscription. For more information, read What is Norton Virus Protection Promise?
If your computer is hacked, you might notice some of the following symptoms:
Frequent pop-up windows, especially the ones that encourage you to visit unusual sites, or download antivirus or other software
Changes to your home page
Mass emails being sent from your email account
Frequent crashes or unusually slow computer performance
Unknown programs that startup when you start your computer
Programs automatically connecting to the Internet
Unusual activities like password changes
Download Norton Power Eraser.
Click Save.
Select the location as Desktop, and then click Save.
To run Norton Power Eraser, double click the NPE.exe file.
If the User Account Control window prompts, click Yes or Continue.
Read the license agreement, and click Accept.
In the Norton Power Eraser window, click the Scan for Risks icon.
By default, Norton Power Eraser performs a Rootkit scan and requires a system restart. When you see a prompt to restart the computer, click Restart. If you do not want to include the Rootkit scan, go to Settings, and uncheck the option Include Rootkit scan (Requires a system restart).
After the computer is restarted, the scan starts automatically. Follow the on-screen instructions.
How do I remove the infection from my computer?
Once you have a virus on your computer, it may attack Norton and prevent it from working properly. In these cases, the virus must be removed manually. Norton offers free, do-it-yourself support options as well as a paid service where we take care of removing threats for you.
You can let our Spyware & Virus Removal Service expert technicians do all the work for you. Our Spyware & Virus Removal Service is handled by highly trained expert technicians who work with you for as long as it takes to locate and neutralize all known threats on your computer.
Contact our Spyware & Virus Removal Service
The following are some of the best practices that will keep your computer safe.
Keep your Norton product updated with the latest Virus definitions
Do not click on any intriguing pop-up advertisements
Always scan your email attachments before opening them
Always scan the files that you download using file sharing programs
Do you need expert help improving computer performance or to fix any other everyday computer issues? Subscribe to Norton Ultimate Help Desk for comprehensive and affordable support anytime you need it.
If you spend a lot of time connected to the Internet, it is only a matter of time before a hacker attempts to gain access to your computer. Proper security and firewalls are usually all that is needed to prevent them from gaining entry, but computer owners who are less focused on system security may have a hacker slipping through their open ports. If you should find yourself in the unfortunate position of dealing with a hacker, just remember that it is entirely possible to identify and track the hacker so his cyber crimes can be reported to the proper authorities.
Open the DOS prompt on your computer. The way you get to the DOS prompt depends on what version of Windows you are using. If you are using Windows 95 or Windows 98, click 'Start.' then click 'Programs' and end by clicking 'MS-DOS.' If you are using Windows NT, Windows 2000 or Windows XP, you will arrive at the DOS prompt differently. In this case, you will click 'Start,' then click 'Run,' then type either 'cmd' or 'command.' Windows Vista is the simplest of all, since you only have to click 'Start,' then type 'cmd.'
Type the following command into the DOS prompt (without quotation marks): 'netstat --a.' This will open a routine known as Netstat, which will quickly identify all connections into and out of your computer. Typing 'netstat --a' will produce a string of information that identifies your IP address, the port your computer is using for the connection, the 'foreign address' of the machine you are connected to, the port that machine is using, and also the status of the connection.
Identify what other Netstat commands are available to you. Type 'netstat ?', without the question marks. This should show you what commands are available in your version of Netstat. Typical commands include --a, -e, -n, -p proto, -r and --s. You can also combine multiple commands at once, as you will do in the following step.
Combine two commands to refine your search. First, use the command that identifies all connections and listening ports, which is usually '-a.' Second, find the command that lists the information in numerical form, which is usually '-n.' Type the command into the DOS prompt as 'netstat --an.' Note that you may need to change the 'a' or 'n' to something else, if they are identified differently in your version of Netstat.
Search for additional Internet activity. You should only have one connection, using one port. If a hacker has gained access to your system, an additional port will be in use. Running the command from the previous step will allow you to see what IP address the hacker is using, the hacker's hostname and the port number he is connecting through. It is possible to shut down the port and block the IP address, but for the moment, let's trace down who is gaining access to the computer and track what they are doing.
Run a trace route on the information you have obtained about the hacker. This affords you an idea of where the individual is located and what ISP he is using to connect to the Internet. Run the trace route by returning to the DOS prompt and typing 'tracert ip address/hostname.' Remove the quotation marks and replace 'ip address' and 'hostname' with the relevant information that was gathered in the previous step. Trace route will then trace the path of the connection, including any servers the connect must pass through before reaching you.
Print out the information about the intrusion, then use your firewall to block the port and IP address used by the hacker. Send a copy of the information to your local police department, the police department in the location that trace route identified for the hacker, the ISP the hacker uses and to the US Department of Justice's cybercrime website. (Follow the link in Resources.) These organizations may want to have a technician generate a detailed computer log of the intrusion and any past intrusions, so do not delete any log files from your computer.
Tips
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Do not attempt to hack back. Not only would this be illegal, but the hacker may be bouncing her connection from an innocent IP address, and would not be affected by your hack attempt.
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If you spend a lot of time connected to the Internet, it is only a matter of time before a hacker attempts to gain access to your computer. Proper security and firewalls are usually all that is needed to prevent them from gaining entry, but computer owners who are less focused on system security may have a hacker slipping through their open ports. If you should find yourself in the unfortunate position of dealing with a hacker, just remember that it is entirely possible to identify and track the hacker so his cyber crimes can be reported to the proper authorities.
Open the DOS prompt on your computer. The way you get to the DOS prompt depends on what version of Windows you are using. If you are using Windows 95 or Windows 98, click 'Start.' then click 'Programs' and end by clicking 'MS-DOS.' If you are using Windows NT, Windows 2000 or Windows XP, you will arrive at the DOS prompt differently. In this case, you will click 'Start,' then click 'Run,' then type either 'cmd' or 'command.' Windows Vista is the simplest of all, since you only have to click 'Start,' then type 'cmd.'
Type the following command into the DOS prompt (without quotation marks): 'netstat --a.' This will open a routine known as Netstat, which will quickly identify all connections into and out of your computer. Typing 'netstat --a' will produce a string of information that identifies your IP address, the port your computer is using for the connection, the 'foreign address' of the machine you are connected to, the port that machine is using, and also the status of the connection.
Identify what other Netstat commands are available to you. Type 'netstat ?', without the question marks. This should show you what commands are available in your version of Netstat. Typical commands include --a, -e, -n, -p proto, -r and --s. You can also combine multiple commands at once, as you will do in the following step.
Combine two commands to refine your search. First, use the command that identifies all connections and listening ports, which is usually '-a.' Second, find the command that lists the information in numerical form, which is usually '-n.' Type the command into the DOS prompt as 'netstat --an.' Note that you may need to change the 'a' or 'n' to something else, if they are identified differently in your version of Netstat.
Search for additional Internet activity. You should only have one connection, using one port. If a hacker has gained access to your system, an additional port will be in use. Running the command from the previous step will allow you to see what IP address the hacker is using, the hacker's hostname and the port number he is connecting through. It is possible to shut down the port and block the IP address, but for the moment, let's trace down who is gaining access to the computer and track what they are doing.
Run a trace route on the information you have obtained about the hacker. This affords you an idea of where the individual is located and what ISP he is using to connect to the Internet. Run the trace route by returning to the DOS prompt and typing 'tracert ip address/hostname.' Remove the quotation marks and replace 'ip address' and 'hostname' with the relevant information that was gathered in the previous step. Trace route will then trace the path of the connection, including any servers the connect must pass through before reaching you.
Print out the information about the intrusion, then use your firewall to block the port and IP address used by the hacker. Send a copy of the information to your local police department, the police department in the location that trace route identified for the hacker, the ISP the hacker uses and to the US Department of Justice's cybercrime website. (Follow the link in Resources.) These organizations may want to have a technician generate a detailed computer log of the intrusion and any past intrusions, so do not delete any log files from your computer.
Tips
Do not attempt to hack back. Not only would this be illegal, but the hacker may be bouncing her connection from an innocent IP address, and would not be affected by your hack attempt.
Video of the Day
Brought to you by Techwalla
dweekly, Flickr.com Creative Commons License
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At times, rather than using the theory of logic and reasoning we follow our gut instinct to understand things instinctively. Hacking is one such instance where this principle may be followed. We know, hackers can get access to your devices in surprising ways and manifest themselves into different avatars that we might not be aware of. IRC Clients, Trojans, Backdoors are some of the malicious programs that are used to hack computers. The least we can do is look for some possible indicators suggesting we might have been hacked and then look for some quick action against it. Here’s how you can know if your Windows computer has been hacked.
How do I know if my computer has been hacked
You know that your computer has been hacked and compromised if you see the following signs:
Your online passwords or settings have been changed
Your computer’s local account passwords have been changed or you see new User Accounts
You are seeing strange posts ‘made by you’ in your social feeds. Or maybe your ‘Friends’ are receiving inappropriate messages, allegedly from you.
Your friends are reporting receiving strange spam or emails from you.
You find that new programs or toolbars have been installed on your computer.
You receive messages from fake antivirus or other rogue software
Your Internet speed has become sluggish and slow
There is a marked increase in Network activity.
Your Firewall is busy blocking several outward connection requests
Your security software has been disabled.
The home page or default browser search engine has been hijacked
Your mouse moves automatically to make selections
You start getting calls from your Bank, Credit Card company, Online Store about non-payment, dip in the bank balance, unexpected outstanding balances or purchases.
Let us take a look at some of these signs in detail, in no specific order.
Change in online passwords
If you notice one or more of your online passwords have changed suddenly, you’ve more than likely been hacked. Here, usually what occurs is that the victim unknowingly responds to an authentic-looking Phishing email that purportedly claimed to be from the service ending up with the changed password. The hacker collects the log-on information, logs on, changes the password, and uses the service to steal money from the victim or the victim’s acquaintances. See how you can avoid Phishing Scams and Attacks. and take steps to prevent your Online Identity Theft.
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As a damage control action, you can immediately notify all your contacts about the account compromised. Second, immediately contact the online service to report the compromised account. Most online services are aware of this sort of maliciousness and have the requisite strength and expertise to restore things to normalcy and get the account back under your control with a new password. You can recover hacked Microsoft Accounts, Google Accounts, Facebook account, Twitter account, etc., using their properly laid down procedure.
Amount missing from your bank account
In an event of misfortune, you can lose all your money if a hacker gets access to your personal information (Credit Card, Online Banking details, etc). To avoid this, turn on transaction alerts that send text alerts to you when something unusual is happening. Many financial institutions allow you to set thresholds on transaction amounts, and if the threshold is exceeded or it goes to a foreign country, you’ll be warned. It would be a good idea to follow these Online Banking Tips.
Fake antivirus messages
Fake antivirus warning messages are among the surest signs that your system has been compromised. Clicking No or Cancel to stop the fake virus scan yields no benefit since the damage is already done. These programs, often make use of unpatched software like the Java Runtime Environment to exploit your system.
Frequent random popups
This problem is mostly associated with your browsers and indicates you have unwanted software or malware installed on your computer since websites do not generally generate harmful pop-ups.
Redirected Internet searches or home page
It’s a well-known fact that most hackers make their living by redirecting your browser somewhere else than the address you would want to visit. That’s certainly because hacker gets paid by getting your clicks to appear on someone else’s website, often those who don’t know that the clicks to their site are from malicious redirection.
You can often spot or pinpoint this type of malware by simply typing a few related, very common words into the search bar of popular search engines and checking to see whether the results relevant to your search appear or not. The traffic sent and returned will always be distinctly different on a compromised computer vs. an uncompromised computer.
Is your PC acting as a Botnet Node?
Botnets are networks of compromised computers, controlled by remote attackers in order to perform such illicit tasks as sending spam or attacking other computers. Maybe your computer has been compromised and is acting as a Node.
TIP: Before you proceed, you might want to read our post – Why would someone want to hack my computer?
What to do if your computer has been hacked
1] If you feel that your Windows PC may have been hijacked, you should disconnect from the Internet and boot into Safe Mode and run a full deep scan of your antivirus software. If your security software has been disabled, use a good on-demand antivirus scanner. and run it from an external disk or USB.
2] You may also use specialized tools like Norton Power Eraser, an anti-hacker software or one of these Botnet Removal Tools.
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2] You can remove bogus toolbars from the browser using a good Browser Hijacker Removal software.
3] Open your Control Panel and uninstall programs that may look suspicious in nature.
4] When you are connected to the Internet, open a Command Prompt, type the following command and hit Enter:
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-a parameter lists all the computer’s connections & listening ports
-n parameter displays addresses & port numbers
-o parameter outputs the process ID responsible for the connection.
With a glance, an IT administrator will be able to To keep a watch on your open Ports, and the network activity going on in the system.
Check for any suspicious connection. Please note that any connection saying ‘Established’ and the PID number and ensure that all such connections are valid connections. If need be, press Ctrl+Shift+Esc to bring up the Task Manager. Then, navigate the mouse cursor to ‘Processes’ tab and hit the ‘View’ tab, select columns and check the Process Identifier PID column. Instantly, the complete list of PID numbers will be displayed. Look for the number you noted down moments ago in the CMD window. If in doubt, terminate the process.
5] Install a bandwidth monitoring tool so that you can keep an eye on your usage. Use Packet Sniffing Tools intercept and log network traffic.
Keep your operating system and installed software updated at all times so as to close all software vulnerabilities and use a good security software. It is essential to keep yourself aware of these developments since, in today’s threatscape, antivirus software offer no 100% peace of mind. To combat this, antimalware programs that monitor program behaviors – Heuristics – to catch previously unrecognized malware should be used. Other programs that use virtualized environments, VPNs and network traffic detection software can also be deployed for use.
6] Make use of Detekt, a free anti-surveillance software for Windows.
Here are some tips that will help you keep Hackers out of your Windows computer.
If you need more help, please go through this Malware Removal Guide. You may also like to read this post titled, how do you tell if your computer has a virus.
TIP: Download this tool to quickly find & fix Windows errors automatically