Virus Database

Tron.754

Description Tron.754

It is a dangerous memory resident parasitic virus. It hooks INT 8, 16h, 21h and writes itself to the end of .COM files that are executed. The infection routine is such courage that infected files may halt the system on execution.
Depending on its internal counters the virus manifests itself with a video effect (that routine contains the bug and it appears on Hercules monitor only), and changes the keyboard input. While installing memory resident the virus displays:
Tron is now active

It also contains the text strings:
FIST
TRON

Check other viruses! Be aware! Use Antiviral Software

Sarov.1000

Description Sarov.1000

This is a harmless memory resident parasitic polymorphic virus. It hooks INT 1, 8, 9, 21h and writes itself to the end of COM files that are accessed with DOS calls FindFirst/Next. By hooking INT 1 (tracer) the virus disables the tracing their code. By hooking INT 8 (timer) the virus change the floppy disk status, and calls the keyboard effect: by hooking INT 9 the virus 'skips' some keys that are pressed. The virus contain the text stings:
BIL`92`S

Sarov.1200

Description Sarov.1200

This is a harmless memory resident parasitic polymorphic virus. It hooks INT 1, 8, 9, 21h and writes itself to the end of COM files that are accessed with DOS calls FindFirst/Next. By hooking INT 1 (tracer) the virus disables the tracing their code. By hooking INT 8 (timer) the virus change the floppy disk status, and calls the keyboard effect: by hooking INT 9 the virus 'skips' some keys that are pressed. The virus contain the text stings:
[BIL_92_Sarov]

Home