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My fav "abuse" of the system was a car park terminal that was running some flavour of Windows with an antivirus software. It had a scanner for the barcode of a
by wilhil 2y ago
My fav "abuse" of the system was a car park terminal that was running some flavour of Windows with an antivirus software.
It had a scanner for the barcode of a ticket, but, it understood lots of other barcodes/encoding systems and must have been logging to the filesystem.
So... saw someone encode the EICAR test string to a QR Code and put it to the scanner... that caused the AV to popup which covered the entire screen and made the terminal unusable!
- bagels 2y agoPretty neat string. A self modifying executable that is also a printable ascii string. https://en.wikipedia.org/wiki/EICAR_test_file https://en.wikipedia.org/wiki/EICAR_test_file
- david_allison 2y agoDEF CON 29 - Richard Henderson - Old MacDonald Had a Barcode, E I E I CAR: https://www.youtube.com/watch?v=cIcbAMO6sxo https://www.youtube.com/watch?v=cIcbAMO6sxo
- exikyut 2y agoGot to the point the EICAR string was described as "very, very random" and became abruptly disinterested fwiw. It's not random. It's a DOS .COM file encoded as printable 8-bit-clean ASCII. The whole point is that it's executable code. I stopped watching from there so it's possible this was mentioned later in the video.