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Try to Unlock Encrypted Excel File

$10-100 USD

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已发布超过 8 年前

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I need a web security person to break into the attached excel file that I've encrypted. I'm doing this to learn how secure Excel's encryption is. I need either an unlocked version of the file or the password that opens the file. I've also added two hidden tabs, and I'd be especially impressed if you can get into these!
项目 ID: 9085412

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活跃8 年前

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Windows excel from encryption point of view its fully secure after 2000. Its encrypted with AES 128 bit, generated from the password you have provided. The issue is the strength of your password. There are lots of online sites that can tell the strength of your password. Since your file is offline, hash can be extracted and offline brute force can be made. If your password is just a word and few number it will take minutes to calculate. But if its long, it can never be found out. I extracted the hash and the salt from your excel and run it on john for few minutes couldnt find your password. Here is your hash for john the ripper. Security [login to view URL]:$office$*2010*100000*128*16*86f46c29f8603557e25e5a248d854eca*fa4033c2f2d01c892ca5948461dc5254*2e5e6ad677c61aa4b4712b8b360361733b014133dfb8b2b7d91b7a50f75120cd With 2 CPU 2 Core vm machine i can try 55 guess/second. So depending on password length and complexity guess how long it will take to calculate. With 8 Core intel 7 machine can try 175 guess/second. Hiding a sheet doesn't add any security in excel, just if you want to share something people but there are some confusing thing you may want to hide them. Other than that they can easily be exposed. Just running a macro Sub macro() Dim ws As Worksheet For Each ws In [login to view URL] [login to view URL] = xlSheetVisible Next ws End Sub or more easier one Sub Macro() [login to view URL] = True End Sub
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Hi, I'm currently running a brutal force on your file. Will let you know the results when I'm done and when you're ready to commit
$150 USD 在2天之内
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$55 USD 在2天之内
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i have a tool to decrypt your file contact me ASAP , i think so many file encrypted of your system Regards, Thirumalesh T Mobile: (732)947-4175
$61 USD 在1天之内
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researcher
$55 USD 在5天之内
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Im good with computers and can get the task done effectively and efficiently within the time specified. And for others it might be part time thingy, but for me its my life, i earn my living through this..I assure you that you will not regret the decision of hiring me.
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UNITED KINGDOM的国旗
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