Eicar Test String

The Eicar Test String is not a real virus. It is a text file that is used to test antivirus software. By default, the file name is Eicar.com, but it could be renamed to any other name.

Protection

• Initial Rapid Release version December 16, 2003
• Latest Rapid Release version September 4, 2008 revision 048
• Initial Daily Certified version December 16, 2003
• Latest Daily Certified version September 5, 2008 revision 002
• Initial Weekly Certified release date pending

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.