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JS.Proslikefan

Risk Level 2: Low

Discovered:
September 11, 2012
Updated:
June 24, 2013 10:42:55 AM
Type:
Trojan, Worm
Infection Length:
93,108 bytes
Systems Affected:
Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
JS.Proslikefan is a JavaScript worm that spreads through mapped network shares, removable drives, and file-sharing applications.

For more information, please see the following resource:
JavaScript Worm on Steroids

Antivirus Protection Dates

  • Initial Rapid Release version September 11, 2012 revision 032
  • Latest Rapid Release version April 4, 2014 revision 019
  • Initial Daily Certified version September 12, 2012 revision 004
  • Latest Daily Certified version April 5, 2014 revision 003
  • Initial Weekly Certified release date September 19, 2012
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy

Damage

  • Damage Level: Medium
  • Payload: Downloads files onto the computer.
  • Modifies Files: Modifies the hosts file.
  • Releases Confidential Info: Steals information from the computer.
  • Causes System Instability: Disables firewall applications on the compromised computer.
  • Compromises Security Settings: Disables certain antivirus programs.

Distribution

  • Distribution Level: Medium
  • Target of Infection: Removable drives, mapped network shares, and file-sharing applications.
Writeup By: Nino Fred Gutierrez, Alan Neville, Kevin Savage, Asuka Yamamoto

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