Researchers encode malware in DNA, compromise DNA sequencing software

August 12, 2017

Enlarge / This data could potentially contain malware. (credit: UCSF)

With everyone from academics to Microsoft looking at the prospect of storing data using DNA, it was probably inevitable that someone would start looking at the security implications. Apparently, they’re worse than most people might have expected. It turns out it’s possible to encode computer malware in DNA and use it to attack vulnerabilities on the computer that analyzes the sequence of that DNA.

The researchers didn’t find an actual vulnerability in DNA analysis software—instead, they specifically made a version of some software with an exploitable vulnerability to show that the risk is more than hypothetical. Still, an audit of some open source DNA analysis software shows that the academics who have been writing it haven’t been paying much attention to security best practices.

More like a virus than most

DNA sequencing involves determining the precise order of the bases that make up a DNA strand. While the process that generates the sequence is generally some combination of biology and/or chemistry, once it’s read, the sequence is typically stored as an ASCII string of As, Ts, Cs, and Gs. If handled improperly, that chunk of data could exploit vulnerable software to get it to execute arbitrary code. And DNA sequences tend to see a lot of software, which find overlapping sequences, align it to known genomes, look for key differences, and more.

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