[unpackme] Obsidium 1.3.6.1

[Teddy Rogers]

This is the latest version to date. Of interest is the updated dynamic protection API access over the previous posted Obsidium unpackme release...

http://www.tuts4you.com/download.php?view.2341

Ted.

[Teddy Rogers]

If anyone has finished with this unpackme and they want a little bit more fun here is another unpackme. It is the same version (1.3.6.1) with maximum protection features enabled but this one contains an encrypted overlay with "controlled access". You can download the unpackme from here:

http://rapidshare.com/files/130077264/UnPa...6.1_Overlay.zip

Ted.

[pavka]

easy way! copy from TEMP folder in app foder

ffplay.exe ,SDL.dll ,pthreadGC2.dll, file.dat & command ffplay.exe file.dat )

[Teddy Rogers]

Lol! I don't think that was the intended approach...

Ted.

[Sonny27]

May someone help me with my IAT script?

I already have a script for fixing Delphi IATs but this is C++ so a new one was needed.

This is the script:

var iat
var iatend
var apiaddress
var oep
var iatbasemov oep,eip
mov iat, 00460818		// edit iat begin here
mov iatend, 00460F2C		// edit iat end here
mov iatbase, 003D0000		// edit iat section here
add iatbase, 00100000
bphws 0047c931, "x"		// edit api holding place here (search for: 6A 01 50 6A 00 FF 76 04 FF 37 FF 53 54, enter the CALL, search for: 8B 04 90 03 C3 8B 55 F8 3B C2, use address: MOV EDX,DWORD PTR SS:[EBP-8])start:
mov apiaddress, [iat]
cmp apiaddress, iatbase	
ja next
mov eip, apiaddress
run
mov [iat], eax
rtr
sti
jmp nextnext:
add iat,4
cmp iat, iatend
je end
jmp startend:
mov eip,oep
ret

Should be clear, only thing I wanted to explain is this:

add iatbase, 00100000

There are some emulated APIs which addresses are way higher than those of the redirected ones.

I leave some out with increasing the redirection

Edited July 17, 2008 by Sonny27

[pavka]

May someone help me with my IAT script?

I already have a script for fixing Delphi IATs but this is C++ so a new one was needed.

This is the script:

var iat
var iatend
var apiaddress
var oep
var iatbasemov oep,eip
mov iat, 00460818		// edit iat begin here
mov iatend, 00460F2C		// edit iat end here
mov iatbase, 003D0000		// edit iat section here
add iatbase, 00100000
bphws 0047c931, "x"		// edit api holding place here (search for: 6A 01 50 6A 00 FF 76 04 FF 37 FF 53 54, enter the CALL, search for: 8B 04 90 03 C3 8B 55 F8 3B C2, use address: MOV EDX,DWORD PTR SS:[EBP-8])start:
mov apiaddress, [iat]
cmp apiaddress, iatbase	
ja next
mov eip, apiaddress
run
mov [iat], eax
rtr
sti
jmp nextnext:
add iat,4
cmp iat, iatend
je end
jmp startend:
mov eip,oep
ret

Should be clear, only thing I wanted to explain is this:

add iatbase, 00100000

There are some emulated APIs which addresses are way higher than those of the redirected ones.

I leave some out with increasing the redirection

[Sonny27]

Sorry, but may you explain that?

I don

[pavka]

Sorry, but may you explain that?

I don