Computer hacked- How to know when your computer is hacked by frauster

In
some situations, you may see new programs or files on the computer. If
you are the only user on the computer and new programs are installed,
this could be an indication that it has been hacked. However, there are
also several legitimate reasons why a new program may appear on the
computer, as listed below.
Operating system or other program received updates that included new programs or files.

When you installed a new program, other
programs may have been installed with it. For example, it is common for
plugins and other free programs to have a check box asking if it is ok
to install a new Internet browser toolbar or antivirus program on your
computer. If you don’t uncheck these boxes, the additional new programs
are installed.
If you suspect someone may have used your machine, ask if they installed a new program.
Below is a listing of programs that may
indicate a hacker has been on the computer. Backdoors and trojans are by
far the most common programs installed on a computer after it has been
hacked. These programs can allow the hacker to gain access to a large
amount of information stored on your computer.

IRC clients are another common way for a
hacker to get into a computer or remotely control thousands of
computers. If you have ever participated in an IRC chat, your computer
could have been hacked.
Spyware, rogue antivirus programs, and
malware might be an indication of a hacker. More commonly, however, they
are a sign that your computer has been infected via download or
visiting a hijacked page while on the Internet.
Computer passwords have changed
Sometimes, after an online account is
hacked, the hacker changes the password to one or more accounts. Try
using forgot password feature to reset the password. If your e-mail
address has changed or this feature does not work, contact the company
who is providing the service. They are the only ones who can reset your
account and give control back to you.
Local computer password
If your password to log into your
computer has changed, it may have been hacked. There is no reason why a
password would change on its own.
Lost or forgotten Windows password.
E-mail spam being sent
Getting bounce back e-mails from addresses I don’t know.
For any attacker to take control of a
computer, they must remotely connect to it. When someone is remotely
connected to your computer, your Internet connection will be slower.
Also, many times after the computer is hacked, it becomes a zombie to
attack other computers.
Installing a bandwidth monitor program
on the computer can help determine which programs are using bandwidth on
your computer. Windows users can also use the netstat command to
determine remote established network connections and open ports.
Computer security programs and firewalls
help restrict access for security purposes. If the computer prompts for
access to programs you do not know, rogue programs may be installed or
it may have been hacked. If you do not know why a program needs access
to the Internet, we recommend blocking access to that program. If you
later discover these blocks cause problems, they can be removed.
Tip: A firewall prompting you for access
may also just be someone trying to probe your network, looking for open
or available ports.
Security programs uninstalled
If the computer’s antivirus program,
anti-malware program, or firewall has been uninstalled or disabled, it
can also be an indication of a hacked computer. A hacker may disable
these programs to help hide any warnings that would appear while they
are on your machine.
Note: It is also possible for a virus to disable the antivirus program or malware to interfere with the anti-malware program.
Computer doing things by itself
When someone is remotely connected to a
computer, they can remotely control any device on that computer. For
example, a mouse cursor could be moved or something could be typed. If
you see the computer doing something as if someone else is in control,
this can be an indication of a hacked computer.
Modem users
If the computer is dialling the Internet
on its own, it is an indication that a program needs to connect to the
Internet. It is common for programs like e-mail clients to do this to
check for new e-mail. However, if you cannot identify what program needs
Internet access, this could be an indication of a hacked computer.
These symptoms may also be an indication
of a virus or malware infection in the computer. Viruses often attempt
to establish an Internet connection to send data from your computer to a
malicious destination.
Internet browser home page changed
If you notice that your web browser
configuration has suddenly changed, this may be a symptom of virus or
malware infection. Examples of sudden browser changes include your home
page changing, a third-party toolbar being added, or your default search
engine changing to something you don’t want.
computerhope.com

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