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Virus.DOS.Walker.3846 is a memory resident parasitic virus on DOS. It is so named because every 30 seconds it shows an old man from the video game Bad Street Brawler walking across the screen.

Payload

When the virus is loaded into memory, it hooks INT 16h, 21h and infects any executable file that is run by a standard manner. The virus may remove itself from the infected files in some cases.

The infection size varies in different files.

Advanced details

The TSR memory usage is 12,304 bytes.

MD5 hash:

8f3da0812856ee0f102dd2913467483c

Payload

Once the virus activated, it displays a moving man from a DOS port of Bad Street Brawler by Beam Software Pty., Ltd in every 30 seconds approximately, at this moment all inputs by the user would not be reflected onto the screen until the man is left.

If the user loaded a graphical program when the virus is in memory, it might hang the system.

Walker

Walker virus in action

Other details

This virus contains the internal text string:

WALKER V1.00 - This absolutely harmless and selfdestructive program is written by UJHPTTLZ in the city of Istanbul, 1992

Media

Virus.DOS.Walker

Virus.DOS.Walker.3846

Virus.DOS.Walker.3846

Virus.DOS

Virus.DOS.Walker

The Walker virus re-review by danooct1 which contained the Groove image, stating that he "would not take any chances with YouTube".