Re: Descargar Deep Freeze 7.30.020 102
Yvette Burkhammer
First, they made an attempt to stop Meltdown from generating correct One Time Passwords (OTP). While doing so, they added a new vulnerability - similar to the one that Meltdown used to obtain password for Deep Freeze Standard version 7.x and older.
Second, they added a licensing mechanism that requires each workstation to be activated. While doing so, they created a new local privilege escalation vulnerability.
The problem is in data exchange between driver and the UI component. It's done using DeviceIoControl calls and data are encrypted using changing XOR key. However, the overall communication protocol is badly designed.
So, let's start with the Deep Freeze Standard versions 5.x to 7.x. Communication between UI (frzstate2k.exe) and the driver goes like this:
Obviously, it's easy to extract password from the information provided by driver. That's what Meltdown originally did.
Deep Freeze Enterprise is a different story:
This communication makes sense. But all the information necessary to generate OTP was present in dfserv.exe and other executables. So, Meltdown didn't even have to communicate with the driver.
But in the latest version (v8.31) the information to generate OTP is not present in dfserv.exe or other executables. However, Faronics added a new feature to the driver:
Where have I seen this design before? smile So, I updated Meltdown to obtain information necessary for OTP generation from DeepFreeze driver. Easy as pie.
I get this question a lot lately. People who see Meltdown ask that. IT managers who bought DeepFreeze ask that. And even some reverser friends have asked me that. But I'd rather not say anything and let the facts speak for themselves.
Hello. I have deep freeze 8.20.020.4589, and i had tried your meltdown and it doesnt work. the message is DeviceIoControl reports failure (1), please help me, i need to close deep freeze.
thanks in advance. ( and excuss my english)
Asking others to talk in English is disrespectful, others should not have to accommodate to English speakers, rather, it should be the opposite. Since English is viewed as the "dominant language", it is important to recognize your privilege.
You are a genius thank you very much, you could perform the meltdown for the version of deep freeze 8.30, since when I use your application of my sale an error saying: "This DeepFreeze version is NOT supported"
thanks.
Hey,could a forgetfull fellow get any help with deepfreeze 8.51.220.5387. I manage a school, and we have 30 laptops with deepfreeze, the old it guy took off and we would like to reinstall windows and get ssd-s in them but we dont know the passwords....:( I tried meltdown but it doesent work, i knew it wouldnt but i hoped :) Will you update meltdown to support newer deepfreeze installs or nope. thnx
Hey there,
1) if you have a valid license, it should be possible to get a support from Faronics directly.
2) if you've lost your password and just want to change it, booting from any Linux live CD/USB should be enough. IIRC, deleting persi0.sys removes DeepFreeze settings - but I will not give any guarantees or support for that. Try at your own risk.
3) if you're putting in SSDs and a new system on them, you're looking at a complete reinstall anyway. There is no need to disable DeepFreeze for that.
Thanks for the reply.
1. yes we have a valid license, but it will be an ear sweating phone call with them and i wanted and i hoped for a shorter route.
2. thank you, good to know :)
3. Finally we cloned them with deepfreeze in frozen state without a problem...but still there is the problem with the passwords....
Anyhow thanks for the reply, and the help ;)
Hey, maybe you don't know why I am going to use this tool at first, because my BIOS password lock, and it cannot be reset, then I can't enter the PE, which means I can't install Windows on their own, as to delete the sys files, cannot be started directly, but I think you can plan to add 8.51 support thank you very much! If not, please recommend one that in the case of don't know the password and in the frozen state to remove or uninstall DeepFreeze method or software (I really need it) at the same time I also have their own idea: if I can enter the PE, so you only need to develop a can delete all DeepFreeze installation time is written on the registration list the procedure can achieve the goal of the disabled.
Hi, R/Kao, I've deep freezer V 8.61 installed (don't wanna uninstall) i forgot my password
I've need any tool like meltdown for password recovery. i'll be glad if you can do anything for
my issue. Thanks
No. As I've explained several times, the point of Meltdown was to demonstrate the issues with Faronics product design. Faronics have fixed the biggest issues with their product, and it's more or less OK now.
first time reinstall the deepfreeze.exe,
if this is not suitable for it, download DeepUnfreezerU1.6.exe or DeepUnfreezer1.6.exe run and a window will be appear to check out the current state of Deep freeze. Click on the Load Button that will be radio button to Boot Thawed and see in the msgbox OK:info retrieved will be appear and go to the Save Status the software msgbox will be show OK:State saved.
the program may need to read some information to the service file. Locate it manuall or automatically.
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