Download Mcafee Unlock User Interface Regedit
I needed to change a few settings on a McAfee VirusScan Enterprise 8.7.Oi client. However there was a password protection in place that locks the user interface and nobody around that could tell me the password. So what to do?
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Right, we check out where this password is stored and how we can get rid of it!
I openend vsplugin.dll in Ida Pro and searched for related strings such as password, lock etc.
I found out that vsplugin.dll calls some interesting exports in shutil.dll called UIP, UiLockInfoLoad1 and UiLockInfoValidate1.
Nov 30, 2016 - CVE-2016-4534: The McAfee VirusScan Console (mcconsol.exe) in McAfee. Rules and unlock the console window by closing registry handles. (such as at a command line or via a desktop session or web interface).). Control access to the user interface Setting security for the interface on client computers is an important part of protecting your environment.
I searched further in shutil.dll and concluded that the password is stored in the UIP value under HKLMSoftwareMcAfeeDesktopProtection registry key.
The value is an MD5 Hash of the password so we cannot decrypt it. So I tried one of the many MD5 hash databases on the net but I couldn’t find the original string for the password.
This happens because the MD5 hash tables are all based on ASCII and McAfee uses a Unicode string type. Eg the word password would be stored like this in hex:
We can of course build our own Unicode hash/rainbow table but an easier solution is to write a known MD5 hash to this registry value. For instance the MD5 hash for the Unicode string password is: b081dbe85e1ec3ffc3d4e7d0227400cd.
Another bypass would be to delete the UIP value and set the UIPMode to 0 which disables the user interface password completely. Note that when an EPO server is in place it will always periodically overwrite the settings with those defined in it’s policies.
I’ve also seen that shutil.dll exports a function called UiLockInfoValidate1. This functions checks if the given MD5 hash exists in the Global Atom Table in the from UIP-<hash>.
The Atom seems to be used as a Single Sign on for the user interface unlock. Once you’ve entered the password in one module, it will also unlock the other modules. Possibly we could abuse this system by writing our own hash to the Global Atom Table but I didn’t investigate this further.
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I needed to change a few settings on a McAfee VirusScan Enterprise 8.7.Oi client. However there was a password protection in place that locks the user interface and nobody around that could tell me the password. So what to do?
Right, we check out where this password is stored and how we can get rid of it!
I openend vsplugin.dll in Ida Pro and searched for related strings such as password, lock etc.
I found out that vsplugin.dll calls some interesting exports in shutil.dll called UIP, UiLockInfoLoad1 and UiLockInfoValidate1.
I searched further in shutil.dll and concluded that the password is stored in the UIP value under HKLMSoftwareMcAfeeDesktopProtectionDownload camtasia studio 7 full crack. registry key.
The value is an MD5 Hash of the password so we cannot decrypt it. So I tried one of the many MD5 hash databases on the net but I couldn’t find the original string for the password.
This happens because the MD5 hash tables are all based on ASCII and McAfee uses a Unicode string type. Eg the word password would be stored like this in hex:
We can of course build our own Unicode hash/rainbow table but an easier solution is to write a known MD5 hash to this registry value. For instance the MD5 hash for the Unicode string password is: b081dbe85e1ec3ffc3d4e7d0227400cd.
Another bypass would be to delete the UIP value and set the UIPMode to 0 which disables the user interface password completely. Note that when an EPO server is in place it will always periodically overwrite the settings with those defined in it’s policies.
I’ve also seen that shutil.dll exports a function called UiLockInfoValidate1. This functions checks if the given MD5 hash exists in the Global Atom Table in the from UIP-<hash>.
The Atom seems to be used as a Single Sign on for the user interface unlock. Once you’ve entered the password in one module, it will also unlock the other modules. Possibly we could abuse this system by writing our own hash to the Global Atom Table but I didn’t investigate this further.
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Very cool 😉 Keep on blogging!
“McAfee Anti User Password key
Can you please tell me how to unlock McAfee 11.6 user interface.
This is valid for McAfee before version 8.8
…
After 8.8 the value is additionally encoded in UIPEx key
Reportedly hashed like this:
Base64(SHA1(unicode(“x01x0fx0dx33″ + password))).
Good luck!
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