159 lines
4.3 KiB
Plaintext
159 lines
4.3 KiB
Plaintext
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What to Do When You Break Into a BBS
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===================================
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-=> Doctor Crunch <=-
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Ok, you probably have read t-files
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about how to break in a bbs. so, I will
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tell you what to do when you get into
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the bbs. Most sysops, if they have an
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IQ, will disable the INIT command. they
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usually do this by changing the INIT
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command to some other word you will
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never guess. Well, there is an easier
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way to crash the bbs than by searching
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for what the sysop changed it to. Get
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in the moniter (CALL-151), and type:
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A54FG
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This is the INIT command's entry point
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which DOS calls to initialize a disk.
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There are some bugs with this way of
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crashing a disk though:
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1) It takes about 40 seconds to INIT
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a disk, and if a sysop is there,
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he can stop you at any time.
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2) Many boards use a fast dos; and,
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most fast-DOSes had to take out
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the INIT command to make the mods
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to DOS. So, even if you do a
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A54FG, you won't be able to kill
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the disk.
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I prefer to kill the VTOC, instead
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of INITing the disk. Here are a couple
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of reasons why:
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1) Very quick!!!!!
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2) Very nasty!!!!!
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The trick is to rewrite the VTOC
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(Volume Table Of Contents) to say that
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the CATALOG track is 255. Now all of us
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know there is no track 255 on a disk,
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this can only mean.....(you guessed it)
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that the system will bomb when doing
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anything that involves looking at the
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CATALOG track. Since almost everything
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you can do in DOS involves reading the
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CATALOG track, this will crash the bbs
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quite well. And here is a nice little
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catch, you can reboot his disk (which
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will give him an I/O ERROR because
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when the hello file is run, DOS must
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look at the CATALOG track) and logoff
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at the same time. You should always
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logoff quickly so that the sysop can't
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lift up the phone, which sometimes will
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prevent you from hanging up. The way I
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logoff is the make the bbs I just
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crashed do a reset, causing me to be
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disconnected from the other end of the
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line. Since most terminal programs
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hang up if you loose the carrier (which
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will happen when his system resets),
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you will hang up the second you crash
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his system!!!!
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Well, here it is:
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(Be sure you're in the moniter)
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*B3BC:FF NAFFBG 3F4:00 NFA62G
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If you don't want to logoff,
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*B3BC:FF NAFFBG
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NOTE: Sometimes you may hear a beep,
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then all of your moniter commands
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will fail. This is because of a
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bug in DOS. When RWTS lets go of
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control, the moniter varible $48
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is destroyed. To work properly,
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$48 must be restored to 0 before
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the moniter takes control again.
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I made a short routine that when
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called, writes the VTOC buffer to
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the disk, and sets $48 to 0. The
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routine is:
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300- 20 FB AF JSR $AFFB
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302- A9 00 LDA #$00
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304- 85 48 STA $48
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306- 60 RTS
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Sometimes it is desirable to crash the
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disks in drive 1 and drive 2. This can
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be done in 1 line, including the quick
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logoff:
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*300:20 FB AF A9 00 85 48 60 N B3BC:FF
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NB5F8:1 (drv1) N300G B5F8:2 N300G
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3F4:FF N FA62G
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Well, that's all folks!!!
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Have lots of fun......
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==============
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{>Dr. Crunch<}
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==============
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-=*> P.S. I was messing around with
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DOS a couple of days ago and I
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figured out a real, real, real,
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nasty one. You have probably
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heard of letting the drive spin
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for a couple of days to ruin it.
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This worx, but it takes a long
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time... I like this 1 better:
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*BDCC:EA EA NBDDA:EA EA
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This mods DOS to recalibrate the
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drive head forever (unless the
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sysop walks in). So, all you do
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now is use a DOS command that
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reads the disk, and the drive is
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going to make alot of funny
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sounds! CATALOG is the best
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one to use, since it is in
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almost every DOS unmodified.
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=====
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NOTE: This should only be done when
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===== there is a VERY, VERY, good
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reason to waste some dudes
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drive. Don't ever do this as
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a prank, because it works!
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Zatz it..
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)>Dr. Cruch<(
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=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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by Dr. Crunch for the Assassin's Knot
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=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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=======================================
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