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Re:MS Security Essentials reporting false positives in the B... by cnvogel on Friday May 16, 2014 @05:27AM (#7754589)
I think you could put the "EICAR Test String" easily in a lot of databases, maybe as the answer to a security question, a special "delivery instruction"...

http://www.eicar.org/86-0-Intended-use.html

It's detected by almost any antivirus product, on my work computer the corporate antivirus immediately quarantines a file with this content.

X 5 O ! P % @ A P [ 4 \ P Z X 5 (...)

Re:MS Security Essentials reporting false positives in the B... by maaarghk on Friday May 16, 2014 @06:55AM (#7754836)
Not EICAR because that has to be at the start of the file. But some other signature, sure.