| Target Program: |
File Shredder 2.5 |
| Description: |
File Shredder for Windows 95/NT is a small utility
that will completely erase the contents of sensitive files and entire folders that you
specify. Normal file deletion only removes a file’s directory entry, but leaves the
data contained in the file on your disk drive. File Shredder completely overwrites the
contents of a file and then deletes it. |
| Location: |
http://www.execpc.com/~sbd |
| Protection: |
User Name & Organization & Registration Nr. |
| Tools needed: |
- SoftICE 3.24 |
| Ob duh: |
Do I really have to remind you
all that by BUYING and NOT stealing the software you use will ensure that these software
houses will continue to produce even *better* software for us to use and more importantly,
to continue offering even more challenges to breaking their often weak protection systems.
BTW, It's illegal to use cracked Software!
If you're looking for
cracks or serial numbers from these pages then your wasting your time, try to search
elsewhere on the Web under Warez, Cracks, etc. |
| Info: |
Brand and product names are trademarks or registered
trademarks of their respective holders. |
| Level: |
(X)Beginner ( )Intermediate ( )Advanced ( )Expert |
|
I don't know why a anyone
should request a tutorial for File Shredder 2.5 - but I got a request. As I looked at File
Shredder I thought this was a joke - I asked the guy - but unfortunately it was no; so
anyone who can't crack this easy protection may read this tut - BTW, I think Gregory Braun
protects all his GREAT programs that way! Now let's start our Cracking Session.
Go to the registration tab and enter "cRACKiNG tUT0RiAL" as User Name,
"N/A" as Organization and "12345" as Reg #. After that enter SoftICE
and set a BPX to HMEMCPY. Then press the "OK"-Button. Since there were three
input fields, we can skip the first two ones. So as SoftICE pops up press CTRL-D (two
times). Then just press F12 about 9 times - now you'll be looking at the following code
snippet:
:00401450 CMP BYTE PTR [ESP+10],00
; Reg # enterd?
:00401455 JZ 0040150E
:0040145B CMP BYTE PTR [EDI],00
; User Name enterd?
:0040145E JNZ 00401469
; If enterd JMP
:00401460 CMP EDI,-32
:00401463 JZ 0040150E
:00401469 LEA EAX,[ESP+10]
:0040146D PUSH EAX
:0040146E CALL 00408890
:00401473 ADD ESP,04
:00401476 MOV EBX,EAX
:00401478 PUSH 00414094
; "Gregory Braun"
:0040147D PUSH EDI
; "cRACKiNG tUT0RiAL"
:0040147E CALL [KERNEL32!lstrcmp]
; compare them
:00401484 TEST EAX,EAX
:00401486 JNZ 004014AC
:00401488 PUSH 00414080
; "Software By Design"
:0040148D PUSH EBP
; "N/A"
:0040148E CALL [KERNEL32!lstrcmp]
; compare them
:00401494 TEST EAX,EAX
:00401496 JNZ 004014AC
:00401498 CMP EBX,0000038D
:0040149E JNZ 004014AC
:004014A0 PUSH EBP
:004014A1 PUSH EDI
:004014A2 CALL 00403500
:004014A7 ADD ESP,08
:004014AA MOV EBX,EAX
:004014AC PUSH EBP
; "N/A"
:004014AD PUSH EDI
; "cRACKiNG tUT0RiAL"
:004014AE CALL 00403500
; calculate real code
:004014B3 ADD ESP,08
:004014B6 CMP EAX,EBX
; compare real & fake code
:004014B8 JZ 004014D8
; JMP if Reg # is ok |
So you just have to do a
"? EAX" at 4014B6 in SoftICE and you get the real code - the fake code is stored
in EBX.You should know how to crack File Shredder 2.5 now.
Another target has been Reverse Engineerd. Any
questions?
|