Security software maker, Panda Security, recently compiled a list of the most interesting viruses of the past six months. Among these are the creepiest, cleanest and most informative viruses.

The creepiest - MalwareProtector2008 and AdvancedXpFixer fill victim computers with bugs which then "eat" the desktop. The virus is in fact an attempt to get users to buy the security software offered by the maker of the virus.

The cleanest - Tixcet.A cleans hard disks, by deleting the user's files.

The kidnapper - PGPCoder.E is also called "ransomware". The virus encrypts data on the user's hard disk and then demands money for the key to decrypt the information.

The most romantic - The Nuwar.OL, Nuwar.QI and Valentin.E clan use romantic themes to trick users into activating them and then infect their computers.

The most informative - Despite its name, Romeo.C is actually informative. Besides fiddling with the Windows registry, Romeo.C also displays a list of breaking news while carrying out its malicious actions.

The impostors - Manclick.A, Manclick.B and Manclick.C pass themselves off as other programmes to make potential victims think they are installing a legitimate application instead of malware. They also redirect users to spoof bank Web pages, to collect confidential information which is then used for online fraud.

The most deceitful - The FakeDeath worm announces the death of Fidel Castro to trick users and infect their computers.

The prophet of the Apocalypse - When run, RenameLoi.A makes an annoying noise and displays a message about the Antichrist and Judgment Day.

The cool pig - When users run a file containing the MSNWorm.EI code, the worm displays a photo of a pig with makeup, necklaces and sunglasses.

The noisiest - BeepBeep.A emits a series of annoying noises when users access the Windows or System folder.

安全软件制造商——熊猫卫士，进来罗列了一张过去六个月以来最有趣的病毒清单。其中有最令人毛骨悚然，最爱干净以及最具教育意义的病毒。

最令人毛骨悚然的病毒：恶意软件Protector2008和升级版XpFixer会使中毒电脑充斥着吞噬电脑桌面的蠕虫。该病毒实际上是试图让用户去购买由病毒制造者所发行的安全软件。

最爱干净的病毒：Tixcet.A会通过删除用户的文件清空整个硬盘。

勒索软件：PGPCoder.E也被称作“赎金软件”。病毒将用户硬盘上的数据转译成密码，然后向用户勒索金钱来换取钥匙解码硬盘上的信息。

最具浪漫气质的病毒：Nuwar.OL，Nuwar.QL以及Valentin.E族类都运用浪漫的主题来诱使用户启动病毒，然后感染电脑。

最具教育意义的病毒：除了它的名字外，Romeo.C确实颇具教育意义。除了篡改注册表以外，Romeo.C在实施恶意攻击同时也会想用户展示一系列重大新闻。

最会伪装的病毒：Manclick.A，Manclick.B和Manclick.C会把自己伪装成其他程序使得潜在受感染电脑认为它们正在安装一个合法程序，而不是恶意程序。它们会将用户导向一个欺诈性的银行网站，以此来搜集用户的私人信息并在接下来用于网络欺诈。

最骗人的病毒：假死蠕虫病毒发布了菲德尔卡斯特罗的死亡消息来欺骗用户并感染电脑。

世界末日的预言家：当该病毒启动时，RenameLoi.A会制造出很恼人的噪音，并且显示出一条关于反基督教和审判日的消息。

酷酷的猪：当用户运行一个包含MSNWorm.EI的文件时，蠕虫病毒就显示出一只着浓妆，戴着项链和墨镜的猪猪。

最吵闹的病毒：当用户访问Windows或系统文件夹时，BeepBeep.A会发出一组恼人的噪音。