1. Symantec/
  2. Security Response/
  3. W32.Crisis


Risk Level 2: Low

August 15, 2012
July 10, 2015 2:02:26 PM
Also Known As:
W32/Crisis-A [Sophos], WORM_MORCUT.A [Trend]
Infection Length:
1,043,456 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
W32.Crisis is a worm that spreads through removable drives, VMware images, and possibly Windows Mobile devices. It also opens a back door on the compromised computer.

For more information, please see the following resources:
Crisis for Windows Sneaks onto Virtual Machines
Crisis: The Advanced Malware
Blogs related to the Hacking Team

Antivirus Protection Dates

  • Initial Rapid Release version August 15, 2012 revision 039
  • Latest Rapid Release version September 22, 2016 revision 004
  • Initial Daily Certified version August 16, 2012 revision 002
  • Latest Daily Certified version September 22, 2016 revision 025
  • Initial Weekly Certified release date August 22, 2012
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Asuka Yamamoto and Takashi Katsuki

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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