Fatmike's Crackme #5

[Fatmike]

View File

Fatmike's Crackme #5

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..::[FaTmiKE 2o24]::..

Welcome to my 5th crackme!

It took a long time implementing this, i hope it is hard to solve!
Sorry for the long load time of the crackme

Here are the goals:

1. The main goal is to unpack and uncrypt this crackme.

2. Find a valid serial or write a keygen.

If you only succeed in 1. or 2. it's fine, i am happy to read every solution.
(e.g. if you can find a valid serial without unpacking, please write a tutorial how you did it!)

The crackme was tested on windows 10.

Have fun!

PS:
1.) Windows Defender returns a false positive due to my custom protection. If you do not trust me, please use a VM for reversing the crackme.
2.) The crackme has to be started from explorer.exe

The crackme can also be found here:

https://crackmes.one/crackme/66ca5b91b899a3b9dd02af52

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• Submitter
  Fatmike
• Submitted
  09/19/2024
• Category
  UnPackMe

 

Edited September 20 by Fatmike

[jackyjask]

Does not run on Windows7

eats 100% of one CPU and no any GUI rendered...

[Fatmike]

Nope, sorry. Windows 7 is not supported. It works on Windows 10, i haven't tested it on Windows 11.
It needs some startup time due to custom protection...

Edited September 19 by Fatmike

[jackyjask]

how long is the bootup time?

[Fatmike]

Only a couple of seconds on native Windows 10. It takes just a bit longer than you would usually expect for a small crackme. Not sure how much longer it takes in a vm.

Edited September 19 by Fatmike

[jackyjask]

OK, thanks for reply with details

I just tried this crackme also on Win11 24H2/VBox VM

same behavior as on W7 -hangs in processes, eats one full CPU core

I waited 1min then killed it

PS  W11 defender says this is a virus and deleted the file, so I"ve to shut it up
 

[Fatmike]

No problem

Quote

I just tried this crackme also on Win11 24H2/VBox VM

I heard it works with Virtualbox with Windows 10. And there it takes 3-4 seconds for startup.

Quote

PS  W11 defender says this is a virus and deleted the file, so I"ve to shut it up 

As i wrote in the description: PS: Windows Defender returns a false positive due to my custom protection. If you do not trust me, please use a VM for reversing the crackme.

I hope you can still make it run somehow 😕

Edited September 19 by Fatmike

[kao]

31 minutes ago, Fatmike said:

works with Virtualbox with Windows 10

Confirmed working in:

• Win10 x64 22H2 inside VMWare;
• Win10 x86 2004, build 19041 inside VMWare;
• Win10 x64 22H2 real machine;

Takes ~5 seconds to start up.

 

@jackyjask:

Spoiler

it hates when it's not started from explorer.exe - could that be a problem?  

 

[Fatmike]

@kao : Thanks for pointing out the issue with explorer, i will add it to the description

[jackyjask]

2 hours ago, Fatmike said:

I hope you can still make it run somehow 😕

I did - turned off the realtime scanner

but then it hangs as I wrote above

 

[Fatmike]

Have you tried starting directly from explorer?

@jackyjask: I have just tested it on Windows 11 23H2 in Virtual Box and it works fine, if you start it from explorer!

Edited September 20 by Fatmike

[jackyjask]

nope, not from explorer

I'm old fan of TC

so running always ing from it, I dont like explorer, even hate it. .. sorrry

I can't believe that it matters how do you run it??

Edited September 20 by jackyjask

[Fatmike]

Quote

I can't believe that it matters how do you run it??

Me neither, it's a bug XD