See also: Security | Virus | Worm | Trojan | Spyware
Methods and tools that prevent, remove, or detect viruses, worms, trojans, spyware, etc.
This page will focus on Windows as OS X and Linux are considerably less vulnerable to viruses.
- 1 Recommended anti-virus software:
- 2 Free
- 3 How to avoid viruses, worms, and Trojan Horses
- 4 Non-Windows Operating Systems
- 5 Links
Recommended anti-virus software:
- AVG – single home and non-commercial end users
- AntiVir – Personal Edition for Windows 9x (Me&98&95) und XP (XP&2000&NT) (German)
- NOD32 – Eset’s NOD32 AntiVirus/Anti-Trojan
- Other programs
- Buying hint: Older versions’ cost is lower and functions mostly the same. Find stores that are selling older versions, usually at a hefty discount. It often works just the same.
There are also free (speech & beer) solutions. Working on a lot of platforms ans OSes.
- Clamwin – Windows frontend.
Other free anti-virus software from pricelessware.org
How to avoid viruses, worms, and Trojan Horses
- Keep your computer up to date
- Anti-Virus software will not protect you from Internet-bound worms like SoBig.
- If you’re not sure how to keep your computer up to date, install a firewall. Installing a hardware or software firewall such as ZoneAlarm can help protect your computer from remote attacks.
- Windows users should visit http://windowsupdate.microsoft.com. An automatic update notification can also be installed.
- Never open attachments you are not expecting
- Even from people you are familiar with. Verify them with the sender first.
- Turn on extensions
- many windows installations turn off the appearance of file extensions (such as “file.jpg“. Turn them back on by:
- Open an explorer window, selecting “Tools – Folder Options” and click the “View” tab.
- Uncheck “Hide File extensions for known file types.”
- Once on, open only safe extensions (such as .GIF, .JPG, .TXT)
- If you do open the file, make sure you are familiar with its extention
- Files such as .PIF, .BAT, .EXE, .COM, .DOC can also infect or harm your computer.
- Avoid using Microsoft Outlook or Microsoft Outlook Express
- There are many alternatives.
- If you must, bookmark and check the Outlook update page at least once a month for patches and updates.
- Avoid using Microsoft Internet Explorer
- There are many alternatives. It is even possible to slipstream Windows by getting rid of MSIE completely.
- Alternatively, keep MSIE up to date via Windows Update, use 3rd party security enhancers, disable ActiveX.
- Close open programs
- If you leave your computer idle on the Internet for long periods of time or run a server.
- Beware of file sharing services
- Don’t run just any file you find off of a file sharing service.
- Check it with anti-virus software.
- Make sure you have a signature, or “.SIG” file, that confirms the file’s integrity. A virus-infected or corrupted file will be detected. PGP usually creates and tests these signatures but they are also known as distributed hash tables.
Non-Windows Operating Systems
Macintosh OS X and Linux are both more resillient to virus and worm activity. First, you must be running day-to-day activites without super-user or administrative access. Then, if you find one of your user profiles has been infected, simply log off and log in as administrator. Retrieve non-executable (data) files from the profile and place them elsewhere. Then delete the profile and start another.
TakeDown.NET -> “Anti-Virus”