| Description:
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Details
Triadi.3998
It is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. The virus is rarity: COM files installer uses an opcode that is legal for XT machines only (if somebody remembers the PC-XT computers), but the sample of virus was found only in 1998 - after about seven years the virus was written. As a result of this XT-only instruction the infected COM files halts when they are executed.
On tenth infection the virus manifests itself by a video effect: switches the computer to video mode, displays an image of 5" floppy disk covered with messages:
Declaration Of Disk Rights
We need REST!!!
DISKTIRED
(c) 1991, TRIADI
Depending on the system time (at 12:00 and at 19:00) the virus displays the messages and waits for "TRD" input:
It's lunch time,
Everybody goes to eat.
Only if you can guess my initial,
I'll let you pass.
It's dinner time,
I want to eat.
I'll let you use the file,
if you can guess my initial. |
