SLAM4.006: CyberYoda's 150 bytes Contest by CyberYoda/SLAM

eZine lover (@eZine)

Published in 

Slam

 · 1 Mar 2022

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One day while arguing what is the smallest virus, I thought that coding a really small virus was kinda lame, because it really didn't do anything. So I decided to see who could write the best small virus using good Optimization Tricks.

I choose 150 bytes because I thought 100 bytes was not enough to do anything cool, and 200 was too much.

Well everybody thought this was a good idea, and I had several people enter. After serious competition, I had several people judge the contest and the winners are:

1^st Place:
Virus Name : Compo
Virus Author: Darkman/29A

Compo is a 145 byte parasitic direct action new executable DOS stub EXE cavity virus. Infects every file in current directory, when executed, by overwriting the unused bytes in the DOS stub. Compo uses tunneling of interrupt 21h and is oligomorphic in file.

2^nd Place:
Virus Name : Mariano
Virus Author: Super/29A

Mariano is a 147 byte resident polymorphic COM & EXE companion virus.

3^rd Place:
Virus Name : Hong Kong
Virus Author: Mister Sandman/29A

Hong Kong is a 78 byte Win 32 EXE/NE/LE/LX/PE companion virus.

4^th Place:
Virus Name : DDT
Virus Author: Vecna/29A

DDT is a 150 byte overwriting encrypted OBJ infector. It is the 5th virus infect OBJ files.

5^th Place:
Virus Name : Hell Spawn

Virus Author: Yosha/Feathered Serpents

Hell Spawn is a 150 byte resident companion virus with some stealth capabilities.

6^th Place:
Virus Name : Arsonic.148
Virus Author: Arsonic/Code Breakers

A small run time com appender which screws with the file size.