[ako]

This list is mainly for free security sofware:

Realtime protection (on-access)

Anti-virus:
Avira AntiVir
Avast!
AVG Anti-Virus Free
PcTools Free
Rising
Panda cloudantivirus
Moon Secure Antivirus Free
Twister (lifelong licence)

Anti-malware:
DriveSentry
Spyware Doctor Starter Edition (Google pack)
Spyware terminator
Rising PC doctor
Windows Defender
SpyCatcher Express

Security suite (anti-virus, anti-malware and firewall):
McAfee Internet Security Suite (AOL)
Comodo


Scanners (on-demand)

AV-Scanners:
Kaspersky AVP Tool
DrWeb cureit
Norton Security Scan (Google pack)
Bitdefender free
a-squared
VIPRE Rescue
Hitman Pro
Multi-AV
Norman malware cleaner
ClamWin
Trendmicro Sysclean
Arcabit microscan
Sophos Threat Detection Test (no removal)
Escan (no removal)

Anti-malware scanners:
Malwarebytes Anti-Malware
Superantispyware
Ad-Aware
Spybot S&D
The Cleaner
Systweak Advanced System Protector
Prevx (no removal)
Spy Sweeper (no removal)
Spyware Doctor (no removal)
CA antispyware (no removal)

AV Rescue CD:
F-Secure
Avira
Kaspersky
BitDefender
DrWeb
more

Rootkit-detection:
Gmer
AVZ, AVZ database
Rootkit Revealer
Gmer: mbr-rootkit
Rootkitty
Sanity check
Radix
more programs here and here

Heuristic Malware scanner:
Mandiant

Memory scanner:
Threatexpert memoryscanner

Portable antivirus/antimalware:
a2 portable
ClamWin portable


Tools for virus removal

Tools for most common viruses:
McAfee Stinger
Avast virus cleaner
MS Malicious Software Removal Tool
Avira AntiVir Removal Tool

Removal tools for specific viruses:
BitDefender
Kaspersky
F-Secure
Symantec
Panda Software

Malware removal:
Subratam
Atribune
Malware Removal


Online-scanners

File scanning with several scanners:
Virustotal
Jotti
Virusscanner
http://virscan.org/
Novirusthanks
Filterbit
Viruschief

Online-scanners:
F-Secure
BitDefender
BitDefender qscan
Eset
Panda Software
CA
OneCare
Trendmicro
VirusChaser
Comodo
a-squared
Kaspersky (no removal)
Symantec (no removal)
Mcafee (no removal)

Online sandbox:
Threatexpert
Sunbelt Sandbox
CIMA
Anubis
Norman Sandbox
Joebox


Firewalls

Limited versions of commercial firewalls:
Agnitum Outpost
Online Armor
Zonealarm
Sunbelt Kerio

Versatile Firewalls:
PCTools
Comodo
Jetico
Webroot
NetVeda Safety.Net
Filseclab


HIPS

Behaviour blocker:
ThreatFire

Classical strong HIPS:
Real time defender (Direct link)
Dynamic Security Agent
EQSecure 3.41
Netchina S3 HIPS (Direct link here.)
Malware Defender (lifelong licence)
Winpooch

Classical lightweight HIPS:
Winpatrol
System shields
Arovax Shield

Anti-keylogger:
Snoopfree
Zemana (excellent, but not free)

Registry protection:
MJ Registry Watcher

Anti-executable:
Process Guard
Trust-no-exe

Drive firewall:
SensiveGuard
CoreForce

File/Folder Monitoring Software:
Tiny Watcher
SilentNight Inspector
FileChecker
FileMap by BB

Anti Dialer:
A-Squared Anti Dialer
Dialer shields


System hardening-HIPS

System & Program Files Protection:
System Protect

Drive-by-download blocker:
Haute secure (IE)
F-Secure Exploit Shield (IE, Firefox)

Memory firewall:
Comodo memory firewall

Address space randomization:
WehnTrust

USB-firewall:
Net Studio USB FireWall


System hardening

Hardening tools:
Invincible Windows
Harden-It
Secure-It
SafeXP
XPantispy
Security & Privacy Complete
Seconfig XP
Samurai
Windows Worms Doors Cleaner

USB-autorun cleaning
Flash disinfector

USB-autorun disabling
Panda USB and AutoRun Vaccine

Script protection:
Script Defender
ScripTrap
No Script (Firefox)

SRP (Software Restriction Policy):
instructions 1
instructions 2

Adding user rights:
Sudo for windows
suDown

Limiting user rights:
Windows Steadystate
SuRun

Determining user rights:
Privbar

Running program with dropped rights:
PsExec
1-Defender
StripMyRights


Sandboxing/virtualization

Sandboxing (for browsers/IM/etc):
Sandboxie
GeSWall
Defencewall (very cheap)

System virtualization:
Returnil
Powershadow 2.6 (Key)
Shadow Defender (lifelong licence)

Rollback software:
Rollback Rx (not free)
Firstdefence-ISR (not free)
Eaz-fix (not free)

Desktop virtualization:
Mojopac

Virtual players:
VmWare player, VmWare converter, EasyVMX converter
moka5 live PC + Fearless Browser

Virtualization software:
VMWare
VirtualBox
Microsoft
VMToolkit

Portable OS:
Ubuntu linux


Vulnerability scanning

Windows-system security analyzing:
MS Baseline Security Analyzer
Nessus
Belarc Advisor

Windows-system security analyzing (OS+installed programs):
Secunia
F-secure health check

Installed programs:
several here

Searching for drivers:
several here


Browser security

Anti-phishing/malware browser plugins:
WOT
McAfee Siteadvisor
PcTools Browserdefender
Netcraft toolbar
Sitehound
Web Security Guard
RGguard
TrendProtect
Comodo Verification Engine

Automatic link scanning:
AVG Linkscanner
Finjan SecureBrowsing

Manual link scanning:
LinkScanner
Dr.Web plug-in (Firefox)

Anti-phishing Firefox plugins:
IDND
ShowIP

Ad blocking:
Adblock Plus (Firefox)
http://www.vdc.fi/adblock-suomi/
http://www.viltteri.net/viltteri.txt
http://easylist.adblockplus.org/

Pop-up blockers:
PanicWare Pop-Up Stopper
EMS Free Surfer


IP-blocking/hardening

Blacklists for Explorer:
Spyware Blaster

Proxy+blacklist:
SquidGuard

Host File management:
Hostsman
B.I.S.S. Host Manager

Host files (blocking malware and advertisements):
http://hostsfile.mine.nu/downloads/
http://www.hosts-file.net/
http://www.mvps.org/winhelp2002/hosts.htm

Caching/filtering and blocking pseudo-DNS server:
DNSKong

Internal proxies:
Proxomitron + JD list
IdnWebShield

External proxies:
Freecap
Socscap

Better DNS:
OpenDNS

IP-blocking:
Peer Guardian 2

Parental control:
K9 Web Protection

Spam-filter:
SpamAssassin
SpamCop
Spamihilator
SPAMfighter
Comodo Antispam
Mailwasher
Spam Manager


Privacy

Anonymous browsing:
Ninjacloak
Zend2
Proxybrowsing
Proxify
Foxyproxy
Tor
XeroBank
OperaTor
JAP

Cookie-control:
Cookie monster
CookieSafe (Firefox)
CS lite (Firefox)
Cookie culler (Firefox)

Key scrambling:
KeyScrambler Personal

Virtual keyboard:
Trendmicro Transaction Guard (Java, with spyware protection)
Neo's safekeys

Password management:
Passwordmaker
Password Safe
RoboForm
RoboForm2Go (portable)
Keepass
Any password

Protection against search data profiling:
Trackmenot (Firefox)

E-mail encryption:
PGPFreeware
Comodo SecureEmail

VPN:
Comodo EasyVPN

Checking your own ip:
Show My IP
IP Adress

Browsing without a trace:
Portable Firefox
Browzar


System monitoring

System monitoring and diagnostic:
System info for Windows (SIW)
What's Running
Change Analysis Diagnostic tool (Microsoft)
Eset SysInspector
EVEREST Home Edition
Anvir task manager
Rsit (new files etc)

Process/startup/etc scanners:
ProcessExplorer
Autoruns
Silent runners
Run Scanner
Process Hacker

Autorun/startup/etc scanners with analyzing help:
HijackThis (analyzing help here, and here)
a2 HiJackFree ( analyzing help here)
Security Task Manager
Runalyzer
Dart Bit

Realtime process monitoring:
Process monitor

Port checking:
ActivePorts
TcpView
CurrPorts+IPNetInfo

Botnet diagnosis:
Trendmicro RUBotted

Network traffic monitoring:
Netmeter
F-secure web trail

Network traffic analyzing:
Wireshark
NetworkMiner
Nmap

Searching files and processes:
http://www.fileresearchcenter.com/ (+ process scanning)
http://www.processlibrary.com/
http://fileadvisor.bit9.com/services/search.aspx

Checksum calculation:
Md5summer
Hashcalc
Hashtab


System cleaning

Process killing:
ProcX (+many anti-rootkit software)

File shredders:
Eraser
UltraShredder
File Shredder

File killing:
KillBox
Brute force uninstaller (guide)
Unlocker
FileASSASSIN
Avenger (Only for EXPERTS!!)

Killing registry entries:
RegASSASSIN

Device&driver analyzing:
ServiWin
Pserv.cpl

Registry editing:
Registrar lite
Regalyzer
RegSearch

System cleaning:
Crap Cleaner
Advanced System Care
Easy Cleaner
RegSeeker
Tweaknow RegCleaner
ATF-Cleaner
CleanUP!
PureRa

Alternate data streams:
ADSSpy
Assasin G13
Lads

Uninstallers:
Revo uninstaller
Zsoft uninstaller
Add/Remove Pro
Install Rite
EMB uninstaller

MRU-list deleting:
MRU-Blaster

Removing unwanted parts of preinstalled Windows/software:
PC Decrapifier
Office 2007 remover
AV removal (many tools)


Data rescue

File rescuing from Usb-drive/hard disk:
PC Inspector File Recovery
Avira UnErase

File rescuing from memory cards:
PC Inspector smart recovery

Rescuing files from corrupted hard disk:
Unstoppable Copier

Unstoppable copying:
TeraCopy

Rescuing files from broken CD/DVD:
IsoBuster


Encrypting

Versatile tool for encrypting:
FREE CompuSec

Hiding files:
My Lockbox

Encrypting files:
TrueCrypt
AxCrypt
Cryptainer LE
Kruptos 2

Encrypting for usb-drive:
Cryptainer Mobile


Backup

Data Backup:
Fbackup
Syncback
Comodo Backup
Karen’s Replicator
Cobian backup
XXCopy

Portable backup:
Toucan
FileHamster

Online-disk:
Mozy
Adrive

Registry backup:
Erunt

Programs for mbr backupping and restoring:
Many programs here

Creating images from hard disks on-line:
Paragon Express]Paragon Express[/url]
Macrium Reflect Free
DriveImageXML
Drive Snapshot
SelfImage
Shadow Protect (excellent, not free)

Backupping hard disk with Live-Cd:
GParted+Clonezilla
G4U
PC INSPECTOR™ clone maxx
Partition Logic

Hard disk cloning:
HDClone free (CD)

Hard disk cleaning:
Darik's Boot & Nuke
Active Kill Disk
PC INSPECTOR™ e-maxx

Backup drivers:
Drivermax


System rescue

Boot-CD:
UBCD4win
BootDisk

Rescuing and troubleshooting:
Memtest86+
Sisoft
SystemResqueCD
Shockfamily Knoppix

Recover a hanging system:
Antifreeze

Repairing of broken internet connection:
Winsockxpfix
Winsockfix
Lspfix

Fixing settings:
Dial-aFix
Sreng
Computer Repair utility kit


Miscellaneous

Guides:
disabling autorun
Fixing MBR with Boot-CD
Fixing MBR
Configuring XP firewall
Restore Corrupted Folder Options and Advanced Settings

Automatic analyzing of EULA:
Eulalyzer
Spywareguide

Security program lists:
Spywarewarrior
Alken
firewallguide

Guides for malware removal:
MajorGeeks

Best security forums:
Wilders Security

Updates from Microsoft:
Shavlik Patch Google® Gadget
Ryan VM's pack

AV-laboratories:
support@emsisoft.com
newvirus@kaspersky.com
virus@avira.com
https://analysis.f-secure.com/


Tests

Eicar test virus:
Eicar AntiVirus test file

Test spyware (for experts):
Spycar
Scoundrel Simulator

System shutdown test (for experts):
ZeroDay testi

Keylogger-test:
FLT

HIPS-tests (for experts):
Comodo

Tests for PC:
Test my PC

Firewall/port tester:
GRC

Other security tests:
PC Flank
GFI (email)

Browser tests:
Web Check (security)
Popup Check (popups)
Browser security (java)

Test sites:
Av Comparatives
Matousec
Anti-Virus performance
Virus Info
Anti Malware Test
Shadow Server
Kareldjag
PCSL - PC Security Labs
Remove-malware
MTC


Vista-security

UAC-control
TweakUAC

Better UAC
Smart UAC
Norton UAC Tool

Vista Firewall control
Vista firewall control

Repairing of broken internet connection:
ICR

Miscellaneous:
disabling autorun
turning DEP on


Linux-security

Anti-Virus
Avast!
Avira AntiVir
Fprot
ClamAv
TkAntivir

Firewalls
Astaro
FireStarter
Guard Dog
Rc Firewall
IpCop
SmoothWall
IpTables

All-in-one
BitDefender