Virus.DOS.Monday

Virus.DOS.Monday.499 is a dangerous parasitic virus on DOS.

Behavior
Every time the virus is run, it infects first 2 uninfected DOS executable files by inserting itself at the beginning of their binaries.

Payload
The virus activates on Monday, when an infected program is run, it displays the message: I don't like mondays ... Followed by formatting the hard drive and hanging the system.