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- ║ Virus Simulation Suite Written by Joe Hirst ║
- ║ British Computer Virus Research Centre (Tel: 0273-26105) ║
- ║ 12 Guildford Street, Brighton, East Sussex, BN1 3LS, England ║
- ║ ANYONE ENCOUNTERING SYMPTOMS DISPLAYED BY THESE SIMULATIONS ║
- ║ PLEASE CONTACT THE CVIA AT (408) 727 4559 or (408) 988 3832 ║
- ║ Copyright (c) Joe Hirst 1988, 1989. ║
- ╚═══════════════════════════════════════════════════════════════════╝
-
- These programs simulate the visual effects of some of the PC viruses.
-
- The complete set of programs currently consists of:
-
- CASC-SIM.COM Cascade virus simulation (standard activation)
- CSC-SIMX.COM Cascade virus simulation (display only)
- DENZ-SIM COM Denzuk virus simulation - single shot display
- FUMN-SIM.COM Fu Manchu virus simulation
- FUM-SIMD COM Fu Manchu virus simulation - single shot display
- FUM-SIMX.COM Fu Manchu virus simulation (censored)
- ITAL-SIM.COM Italian virus simulation (standard activation)
- ITL-SIMX.COM Italian virus simulation (display only)
- JERU-SIM.COM Jerusalem virus simulation
-
- Many of these programs are TSRs, and in all such cases the program can be
- removed from memory by the <ALT><-> key combination.
-
- Some of them have a programmable builtin delay, and these may be called with
- a numeric parameter between 1 and 30 inclusive. This number represents the
- delay in minutes before displaying the simulation effect. If the program is
- called without a parameter a delay of one minute is assumed, except for the
- program ITL-SIMX where no parameter means no delay.
-
- In many cases the simulation can be switched off, and the delay reset,
- by the <ALT><+> key combination. The exception is the program ITL-SIMX when
- called without a parameter: in this case the <ALT><+> key combination toggles
- the display.
-
- Please note that the <+> & <-> refer to the grey keys right of the numeric
- key pad.
-
- CASC-SIM.COM
- Cascade virus simulation (standard activation)
-
- This program simulates the display of the Cascade virus. Characters will
- fall down the screen until they encounter another character or a change in
- the background or foreground colours.
-
- The area of display affected will initially be one column. This will build
- up with successive displays until the full screen is affected.
-
- The delay before the first display will be random with a maximum of five
- minutes, and that between displays will be random with a maximum of one
- minute.
-
- CSC-SIMX.COM [n]
- Cascade virus simulation (display only)
-
- This program simulates the display of the Cascade virus, but with a controlled
- delay. Characters will fall down the screen until they encounter another
- character or a change in the background or foreground colours.
-
- The area of display affected will be the full-screen.
-
- The delay before the first display, and that between displays, will be equal
- to the entered parameter in minutes, or one minute if no parameter is given.
-
- DENZ-SIM.COM
- Denzuk virus simulation - single shot display
-
- This program is not a TSR, nor does it accept any parameters. It duplicates
- the visual display produced by the virus when Ctrl-Alt-Del is intercepted.
-
- FUMN-SIM.COM
- Fu Manchu virus simulation
-
- The virus intercepts the keyboard I/O interrupt, and certain words cause the
- addition of comments. These comments go into the keyboard buffer, not just on
- the screen.
-
- The trigger words include "Thatcher", "Botha", "Reagan", "Waldheim" and
- "Fu Manchu". In each case the trigger is the word (or words) followed by a
- space. The other trigger words are the two more explicit four-letter words
- (without a space). Be warned that this simulation, like the virus, uses
- explicit language.
-
- Ctrl-Alt-Del is intercepted and produces a message before the machine reboots.
-
- There is no reset with this program.
-
- FUM-SIMD.COM
- Fu Manchu virus simulation - single shot display
-
- This program is not a TSR, nor does it accept any parameters. It displays the
- message produced by the virus when Ctrl-Alt-Del is intercepted.
-
- FUM-SIMX.COM
- Fu Manchu virus simulation (censored)
-
- This program is exactly as described for FUMN-SIM.COM, except that the two
- four-letter words have been censored to "c***" and "f***", both on input and
- output.
-
- This version is intended for public demonstrations where it is felt that the
- full-blooded version would be inappropriate.
-
- ITAL-SIM.COM
- Italian virus simulation (standard activation)
-
- This program simulates the display of the Italian virus, which is a single
- character "bouncing ball".
-
- The display will only activate under the same condition as the real virus,
- which is a disk access during a one second time "window" occurring every half
- hour. "Reset" will switch off the display again until the next such
- activation.
-
- ITL-SIMX.COM [n]
- Italian virus simulation (display only)
-
- This program simulates the display of the Italian virus, which is a single
- character "bouncing ball".
-
- If called with a parameter there will be a delay before the display is
- activated equal to the parameter in minutes. Reset will switch off the
- display until this same delay has elapsed again.
-
- If called with a parameter the display will appear immediately, and reset will
- switch the display on and off
-
- JERU-SIM.COM [n]
- Jerusalem virus simulation
-
- This program simulates Jerusalem virus. After the initial delay a portion
- of the screen (from row 5 column 5 to row 16 column 16) will be scrolled up
- two lines, creating a small black gap in the display. At this time a time
- wasting loop will be activated, and the processor will appear to be slowed
- down. Reset will switch off the slow-down effect, and re-institute the delay.
-
- If called with a parameter there will be a delay before the display is
- activated equal to the parameter in minutes. If called without a parameter,
- the delay will be one minute. Reset will switch off the display until this
- same delay has elapsed again.