For this part im still abit blur , dont quite get it what does
it mean by port 80 , 25 and port 2000 4000 6000. Explain more
pls
Ports are basically communication channels. Think along the way
of USB ports, PS/2 ports, parallel ports, serial ports, etc. All
these ports that you see on a PC, are physical ports; they allow
communication between the computer and the different devices.
For the Internet, they are also used for communication. The numbers
will determine what kind of program you are using. For example,
port 23 for Telnet, port 25 for FTP, port 80 for browsers (IE,
Firefox, etc).
If you use a firewall, it will prompt you what kind of program is
trying to access the Net, together with the port number.
For example Sygate firewall. When you attempt to connect to
www.google.com, it will prompt you that iexplore.exe (Internet
Explorer) is trying to access the Net using port 80.
what is worm
A worm is a virus, but is spread via networks. Blaster is one
famous one.
Yes , there alway microsoft updates and etc thing , how do i
know they are not something that trying to wreck my comp ?
If anyone attempts to tell you that there are new updates for
Windows, Office, for your antivirus, for your browser or tries some
other tricks (for example, nice screensaver program), don't believe
it. All these programs are seemingly harmless, but in fact, have an
evil intention.
Just like the Greek mythology.
The moment the file is downloaded, your PC could be infected.
I do download stuff from the net , how do i know what im
downloading is actually virus or backdoor , trojan etc
Download from trusted sources. Open-sourced programs such as
those from Sourceforge, programs from Pricelessware
have been tried and tested to be spyware free. If unsure, do a
Google search for user reviews and read their reviews. If the
review is good, most likely it can be trusted. If you find mixed
reviews, just post in the forum. Somebody will evaluate the
product.
If it's a file, upload it to Virus Total or Jotti for a scan. If the
results are clean, chances of it being a clean file is high.
However, these results are no guarantee that the file is clean
because malware mutates fast and antivirus companies jsut can't
catch up to produce signatures to tell if a file is malicious.
