Viruses and Digital Signatures

TOPICS:adobe certificate certificate authority fake CA fake signature http malware sigcheck signature symantec verisign viruses

Posted By: Sorin Mustaca March 5, 2010

Very interesting stuff: http://www.symantec.com/connect/blogs/viruses-and-digital-signatures

Although the files are signed, they are signed using an unauthenticated CA (Certificate Authority) which is masquerading as Verisign. A CA is a trusted third party that issues and signs the certificate and vouches for the authenticity of the file. Each CA should be registered and therefore recognized globally as a trusted signer. The signature on the certificate is verified by the signer’s public key.

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Sorin Mustaca

Sorin Mustaca, (ISC)2 CSSLP, CompTIA Security+ and Project+, is working since year 2000 in the IT Security industry and worked between 2003-2014 for Avira as Product Manager for the known products used by over 100 million users world-wide. Today he is an independent IT Security Consultant focusing on Cybersecurity, secure software development and security for IoT and Automotive. He is also running his personal blog Sorin Mustaca on Cybersecurity and is the author of the free eBook Improve your security .