XoristDecryptor 1.4.4.0
XoristDecryptor is a handy tool that was designed in order to help you fight infections from Trojan-Ransom.Win32.Xorist malware. Malware of the family Trojan-Ransom.Win32.Xorist is designed for unauthorized modification of data on a victim computer. It makes computers uncontrollable or blocks its normal performance. After taking the data as a “hostage” (blocking it), a ransom is demanded from the user.

Microsoft Security Essentials 1.87.1341.0
With Microsoft Security Essentials, you get high-quality protection against viruses and spyware, including Trojans, worms and other malicious software. And best of all, there are no costs or annoying subscriptions to keep track of.

avast! 5 Home Edition 5.0.594.100712
Avast Free Antivirus is based on multiple protective layers that work together to provide security. The product is designed for the average consumer who wants easy-to-use protection for basic email and web surfing. It is limited to home and non-commercial users.
New features match top detection with increased efficiency. Computer memory requirements for the new antivirus and antispyware engine have been cut in half.

ClamWin Portable 0.96.1 Rev 3
ClamWin Portable is the popular ClamWin antivirus packaged as a portable app, so you can take your antivirus with you to scan files on the go. You can place it on your USB flash drive, iPod, portable hard drive or a CD and use it on any computer, without leaving any personal information behind.

Rizone Virus Cleaner 0.9.2.915
Rizone Virus Cleaner is a free portable utility for cleaning viruses, malware and spyware from your computer permanently. It has a fast scanning engine and can detect over 300000 unwanted files. The best feature of this tool is its portability. This means that you can carry it around with you on a USB memory stick and use it wherever and whenever you want. Also, use it together with your favourite Anti-Virus program for extra security.