Kaspersky® Security Scan
http://www.kaspersky.com/virus-scanner

Kaspersky® Virus Removal Tool
http://www.kaspersky.com/antivirus-removal-tool?form=1

Malwarebytes Anti-Malware
https://www.malwarebytes.org/mwb-download/
http://downloads.malwarebytes.org/file/mbam/ (direct download)

McAfee® GetSusp
http://www.mcafee.com/us/downloads/free-tools/getsusp.aspx
http://downloadcenter.mcafee.com/products/mcafee-avert/getsusp/getsusp.exe (direct download)

McAfee® RootkitRemover
http://www.mcafee.com/us/downloads/free-tools/rootkitremover.aspx
http://downloadcenter.mcafee.com/products/mcafee-avert/rr/rootkitremover.exe (direct download)

McAfee® Stinger
http://www.mcafee.com/us/downloads/free-tools/stinger.aspx
http://downloadcenter.mcafee.com/products/mcafee-avert/Stinger/stinger32.exe (direct download)

Microsoft® Windows® Malicious Software Removal Tool (KB890830)
http://www.microsoft.com/security/pc-security/malware-removal.aspx
https://www.microsoft.com/en-us/download/malicious-software-removal-tool-details.aspx

Microsoft® Windows® Safety Scanner
http://www.microsoft.com/security/scanner/en-us/default.aspx

Norton™ Power Eraser
https://security.symantec.com/nbrt/npe.aspx?lcid=1033
http://liveupdate.symantec.com/upgrade/NPE/1033/NPE.exe (direct download)

Norton™ Security Scan
https://security.symantec.com/NSS/GetNSS.aspx?pid=symc&affiliateid=symfreetools
http://liveupdate.symantecliveupdate.com/upgrade/NSS/SymCCIS/Production/NPI/symantec/Setup.exe (direct download)

Piriform® CCleaner
https://www.piriform.com/ccleaner
https://www.piriform.com/ccleaner/download/standard (direct download)

Spybot – Search & Destroy®
http://www.safer-networking.org/dl/
http://spybotupdates.com/files/spybot-2.3.exe (direct download)
http://www.spybotupdates.com/files/spybotsd162.exe (direct download)
http://files.spybot.info/spybotsd162.exe (direct download)

Trend Micro™ Housecall
http://housecall.trendmicro.com/
http://go.trendmicro.com/housecall8/HousecallLauncher.exe (32-bit)
http://go.trendmicro.com/housecall8/HousecallLauncher64.exe (64-bit)

Trend Micro™ RootkitBuster
http://downloadcenter.trendmicro.com/index.php?regs=NABU&clk=latest&clkval=355&lang_loc=1
http://files.trendmicro.com/products/rootkitbuster/RootkitBusterV5.0-1171.exe (32-bit)
http://files.trendmicro.com/products/rootkitbuster/RootkitBusterV5.0-1171×64.exe (64-bit)

Trend Micro™ RUBotted
http://free.antivirus.com/us/rubotted/
http://downloadcenter.trendmicro.com/index.php?regs=NABU&clk=latest&clkval=1777&lang_loc=1
http://files.trendmicro.com/products/rubotted/RUBottedSetup.exe (direct download)

Trend Micro™ SysClean
http://downloadcenter.trendmicro.com/index.php?regs=NABU&clk=latest&clkval=353&lang_loc=1
http://files.trendmicro.com/products/tsc/sysclean.zip (direct download)