500 Kilobytes of Mystery & the discovery of First Digital Weapon

Computer worms  are usually 15-30Kb in size.

Liam O’Murchu, a computer expert analysing viruses and worm for six years at Symantec in the US.

One day when he went to his office at Southern California , he pulled out some files to analyse and to work which he received from his colleague in Europe.

The file was a computer worm which was spreading in Iran and other few countries.

He sat down and started to work on it. He found that the size of the worm was 500 Kilobytes which was very unusual.  Normally a worm size would be 15-30Kb in size.

He also found when he gone through the code that it was very complex and highly challenging.

He managed to decompress the file and the size of the unpacked worm was 1.18mb which was very unusual.

That computer worm was the most dangerous and the first digital weapon which sabotaged PLCs of Nuclear Power plant and its called Stuxnet.