JS.Proslikefan is a JavaScript worm that spreads through mapped network shares, removable drives, and file-sharing applications.

The threat JS.Proslikefan was discovered by Symantec Security Response Threat Severity Assessment on September 11, 2012 and was classified as Trojan, Worm.

Initial Daily Certified version of virus definitions for Norton security products was released on pending. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.

JS.Proslikefan Threat Assessment

Component	Severity
Wild Level	Low
Number of Infections	0 - 49
Number of Sites	0 - 2
Geographical Distribution	Low
Threat Containment	Easy
Removal	Easy
Damage Level	Medium
Distribution Level	Medium

According to the Symantec Threat Severity Assessment, overall risk of JS.Proslikefan is now categorized as «Low» — threat type characterized either as low or moderate wild threat (but reasonably harmless and containable) or non-wild threat characterized by an unusual damage or spread routine, or perhaps by some feature of the virus that makes headlines in the news. Read more about Threat Severity Assessment.

This threat affect the following operating systems:

• Windows 2000
• Windows 7
• Windows 95
• Windows 98
• Windows Me
• Windows NT
• Windows Server 2003
• Windows Server 2008
• Windows Vista
• Windows XP

More information about JS.Proslikefan, you can find on the official site of Symantec Corporation, where in addition to useful information you can find technical details and removal instructions: www.symantec.com

It is also recommended to read the article Network security threats, where you can find a brief description and explanation of the most dangerous security threats plus a few simple tips on how to protect your personal computer from them.