![]() ![]() Since PowerShell scripts can completely nuke your system, Windows sagaciously disables such scripts by default. Open PowerShell as an Administrator by pressing the Windows Logo Key + q and typing: Okay, now we need to import the script into Powershell so we can do our memory dump dance. I just want you to see why this works rather then just telling you how it works.Īfter you get an idea about what happening, right click the link, choose Save link as from the context menu and make sure you save it with the PS1 File (.ps1) file extension. The file is littered with comments to make it easier to understand. The first thing you should do is analyze the PS1 file in detail. Peruse the code by clicking the link so you get a basic understanding about what it does. Import Matthew Graeber’s Out-Minidump.ps1 from Github. ![]() Now we need to use PowerShell to dump the contents of memory related to LSASS.exe – but we can’t do that because Windows has no default Cmdlet for pulling this off. So don’t complain – French is the sexiest language on earth so learning this will probably get you a hot wife.ĭownload, extract and execute the file: mimikatz.exe Plus, this might be a good opportunity for you to learn a new language. The blog is in French but it’s pretty obvious where the binary lives. Go to and download the latest mimikatz binary. The disquieting part is the entire exploit took me less than 5 minutes to pull off. There’s a hole in the implementation that makes it easy for someone to steal the encrypted passwords from memory and use the LsaUnprotectMemory function to decrypt and display the password in plaintext. LsaUnprotectMemory (The decryption function).LsaProtectMemory (The encryption function).The fact that the password is encrypted doesn’t really mean anything when you realize it’s implementation depends on two basic Win32 functions: It’s the critical process than manages password changes and authentication. This is what happens with the Local Security Authority Subsystem Service (LSASS.exe) process. Instead of encrypting a one-way hash the password itself is encrypted and left in memory. The problem is that Windows stores encrypted user passwords in memory. I trust my readers aren’t so vile that they would use this to really compromise a friends PC. Obviously do not try this on someone in real life – this is purely for educational purposes. Today I’m going to show you how to hack any Windows PC in less than 5 minutes then I’ll share my recommendations for thwarting this threat in the future. ![]() Your password must be strong so that it can’t be easily brute forced and memorable so you don’t compromise your password by writing it down.īut what’s the point of using a convoluted password when a determined hacker can bypass these security methods through unconventional means? Prepare to be appalled.įor the longest time, I’ve told you how imperative it is to use a password that is both strong and memorable. And I’m about to walk you through the entire process – step by step. So here’s my question: could this really happen? To top it all off, he’s doing this on your brand spanking new Windows 8.1 PC which has all the updates installed and is running Windows Defender. For example, if he knows your Gmail address he can attempt to sign in using the password culled from your local and Microsoft accounts.
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