Software de Segurança (Freeware)

[BladeRunner]

Todos os dias aparecem posts a perguntar por antivirus, firewalls, etc. Portanto aqui estão algumas ferramentas de segurança, todas freeware, actualizadas. É uma questão de "free choice", não faço diferenciação entre os produtos, se este é melhor que aquele, etc. Isso são outras questões, para outros tópicos... Enjoy!
Mas todos vocês que visitam este tópico estão à vontade de comentar, e participar no tópico contribuindo com programas, software, etc de que tenham conhecimento.
Eu, como referi acima, não faço diferenciação, nem best-off!

System Protection:
System Protect: http://www.system-protect.com/download.aspx
Arovax: http://www.arovaxshield.com/

Free Antivirus:
BitDefender10: http://www.bitdefender.com/site/Products...lutions/6/
Avast: http://www.avast.com/por/download-avast-home.html
Avira AntiVir: http://www.free-av.com/
AVG: http://free.avg.com/download-avg-anti-vi...n_free_670
PcTools Antivirus: http://www.pctools.com/free-antivirus/
ClamWin: http://www.clamwin.com/content/view/18/46/
Comodo: http://personalfirewall.comodo.com/downl...ewall.html (Anti-Virus Plus Firewall)
MoonSecure: http://sourceforge.net/projects/moonav/f...e/download
Panda Cloud Antivirus Free: http://www.cloudantivirus.com/
ThreatFire: http://www.threatfire.com/download/
Microsoft: http://www.microsoft.com/Security_Essentials/
Rising: http://www.freerav.com/
Immunet: http://www.immunet.com/free/index.html
DigitalDefender: http://freebies.about.com/gi/o.htm?zi=1/...virus-free

Free Security Suites:
McAfee VirusScan Plus - Special Ed. from AOL: http://safety.aol.com/isc/BasicSecurity/
Comodo Internet Security: http://www.comodo.com/home/internet-secu...curity.php
CyberDefender: http://www.brothersoft.com/cyberdefender...51114.html (Contém publicidade)
PCLive Security: http://www.pclive.com/free-tools.php
IObit Security 360: http://www.iobit.com/beta.html
SecureIt: http://www.fightspyware.net/
Fortinet: http://www.forticlient.com/standard.html
Outpost Security Suite: http://free.agnitum.com/#

Free AntiMalware:
Malwarebytes: http://www.malwarebytes.org/ (Free sem protecção residente)
Emsi: http://www.emsisoft.com/en/software/free/ (Free sem protecção residente)
Lavasoft: http://ad-aware.en.softonic.com/
Malwaresweeper: http://www.malwaresweeper.com/
Iobit Security: http://www.iobit.com/security360.html
Comodo Anti-Malware: http://www.comodo.com/products/free_products.html
PC Tools ThreatFire: http://www.threatfire.com/download/

Free Firewalls:
Comodo: http://www.personalfirewall.comodo.com/ (agora com anti-virus)
Agnitum Outpost: http://www.agnitum.com/products/outpostfree/index.php
ZoneAlarm: http://www.zonealarm.com/security/en-us/...rewall.htm
Ashampoo: http://www2.ashampoo.com/webcache/html/1...0050__.htm
Jetico: http://download.cnet.com/Jetico-Personal...18587.html (Pós versões são pagas)
Filseclab: http://www.filseclab.com/eng/products/firewall.htm
SoftPerfect: http://www.softperfect.com/products/firewall/
Sygate: http://www.oldversion.com/Sygate-Personal-Firewall.html (Software descontinuado)
Pc Tools Firewall Plus: http://www.pctools.com/firewall/
Core Force: http://force.coresecurity.com/
Online Armor: http://www.tallemu.com/products-online-armor-free.php
GhostWall FireWall: http://www.ghostsecurity.com/ghostwall/
Sphinx: http://www.sphinx-soft.com/Vista/order.html (AddOn para a Firewall do Windows - Outbound Traffic)
FortKnoxFirewall: http://www.fortknox-firewall.com/
NetDefender Firewall: http://www.codeplex.com/netdefender/
R-Firewall: http://www.r-firewall.com/R_Firewall_Download.shtml
PrivateFirewall: http://www.privacyware.com/personal_firewall.html

Free AntiSpyware:
AVG: Integrado em: http://free.avg.com/download-avg-anti-vi...n_free_670
SpyBot Search & Destroy: http://www.safer-networking.org/pt/index.html
AdAware: http://www.lavasoftusa.com/
Spyware Terminator: http://www.spywareterminator.com/
Arovax: http://www.arovaxantispyware.com/
CWShredder (Trend Micro): http://free.antivirus.com/cwshredder/
A-Squared: http://www.emsisoft.com/en/software/free/
SpywareBlaster: http://www.javacoolsoftware.com/spywareblaster.html
SUPERAntiSpyware: http://www.superantispyware.com/
Windows Defender: http://www.microsoft.com/windows/product...fault.mspx
SpywareGuard: http://www.javacoolsoftware.com/spywareguard.html
Systweak Advanced System Protector Free Edition: http://www.systweak.com/AntiSpyware/


Free Anti Spam:
Comodo: http://www.comodoantispam.com/
Mail Washer: http://www.mailwasher.net/
SPAMfighter: http://www.spamfighter.com/Download_Download.asp
Antispam Scanner: http://www.styopkin.com/free_antispam_scanner.html

Free Anti Rootkits:
Ice Sword: http://www.antirootkit.com/software/IceSword.htm
Sophos: http://www.sophos.com/products/free-tool...otkit.html
Hook Explorer: http://labs.idefense.com/files/labs/rele...kExplorer/
RootkitRevealer: http://technet.microsoft.com/en-us/sysin...97445.aspx
GMER: http://www.gmer.net/

Free Online Security Check:
Online-security-check Alken: http://www.alken.nl/online-security-check.htm
Secunia: http://secunia.com/vulnerability_scanning/online/
Security Tools Online: http://www.securitytoolsonline.com/
Audit My Pc: http://www.auditmypc.com/

Online Antivirus Scan:
Kaspersky: http://www.kaspersky.com/virusscanner
Trend Micro: http://housecall.trendmicro.com/emea/
McAfee: http://us.mcafee.com/root/mfs/default.asp
BitDefender: http://www.bitdefender.com/
F-Secure: http://support.f-secure.com/enu/home/ols.shtml
F-Secure:http: http://www.f-secure.com/en_EMEA/security/ (Malware)
Norton (Symantec): http://security.symantec.com/sscv6/home....YNPOXNBVEF
Microsoft: http://onecare.live.com/site/en-us/default.htm
Panda: http://www.nanoscan.com/
Eset: http://www.eset.com/onlinescan/
Avast: http://onlinescan.avast.com/
Dr.Web: http://online.drweb.com/?url=1
CA: http://192.8.110.45/cascanner/
A-Squared: http://www.emsisoft.com/en/software/ax/

Informação actualizada de segurança (Online):
VirusList: http://www.viruslist.com/en/index.html
McAfee: http://www.freebyte.com/antivirus/#prevention
Symantec: http://www.symantec.com/business/sec...er/threats.jsp
Trend Micro: http://www.trendmicro.com/vinfo/
Trend Micro Malware Map: http://itw.trendmicro.com/index.php?id=25
Virus or Hoax?: http://virusall.com/index.php
AntivirusWorld: http://antivirusworld.com/
F-Secure: http://www.f-secure.com/virus-info/virus-news/
Prevx: http://www.prevx.com/malwarecenter.asp
IBM: http://xforce.iss.net/
AGN: http://agn-www.informatik.uni-hamburg.de/vtc/index.htm
Microsoft: http://www.microsoft.com/security/portal/
MatouSec.com: http://www.matousec.com/projects/proacti...challenge/

Indiferénciados:
Peerguardian: http://phoenixlabs.org/pg2/
PeerBlock: http://www.peerblock.com/
Web Security Guard: http://www.websecurityguard.com/pt/download.aspx
PC Flank: http://www.pcflank.com/test.htm
Anti-Trojan Shield: http://www.atshield.com/
HijackThis!: http://www.trendsecure.com/portal/en...ols/hijackthis
a-squared HiJackFree: http://www.emsisoft.com/en/software/download/
a-squared Anti-Dialer: http://www.emsisoft.com/en/software/download/
AnalogX Script Defender: http://www.analogx.com/CONTENTS/down...em/sdefend.htm
VundoFix: http://vundofix.atribune.org/
SmitFraudFix: http://siri.geekstogo.com/SmitfraudFix.php
Pc Security Test 2007: http://www.pc-st.com/us/index.htm
McAfee Stinger: http://vil.nai.com/vil/stinger/
McAfee Free Services: http://us.mcafee.com/root/catalog.asp?catid=free
Mcafee Site Advisor: http://www.siteadvisor.com/
WinPatrol: http://www.winpatrol.com/
Secunia Personal Software Inspector: http://secunia.com/vulnerability_scanning/personal/

Wireless Tools:
AirSnare: http://home.comcast.net/~jay.deboer/airsnare/
iPig: http://www.iopus.com/iPig/download/
LucidLink WiFi Client: http://www.lucidlink.com/lucidlink_wifi_client.htm
Kismet: http://netsecurity.about.com/gi/dynamic/...load.shtml
WiFiScanner: http://netsecurity.about.com/gi/dynamic/...forge.net/

Análise de logs do HijackThis!: http://www.hijackthis.de/

Online Security tests:
Shields UP!: https://www.grc.com/x/ne.dll?bh0bkyd2
Firewall Leak Tester: http://www.firewallleaktester.com/leaktest6.htm
Audit My PC: http://www.auditmypc.com/
Alken: http://www.alken.nl/portscan.php
PcPitStop: http://www.pcpitstop.com/
hackerwhacker: http://whacker4.hackerwhacker.com/freetools.php

PcFlank: http://www.pcflank.com/

Browser Check:
http://bcheck.scanit.be/bcheck/
http://www.jasons-toolbox.com/BrowserSecurity/

E porque um pc estável também é segurança: http://pcpitstop.com/

Extra:
http://www.freebyte.com/
http://www.techsupportalert.com/best...tilities.htm#5

Este tópico irá sendo actualizado conforme disponibilidade.