Scabflake Posted April 25, 2017 Share Posted April 25, 2017 Hello Everybody! We have a problem where a password was placed on an Excel spreadsheet by our IT director. He has forgotten the password. Is there anyway to recover it or hack it? Quote Link to comment Share on other sites More sharing options...
Rkiver Posted April 25, 2017 Share Posted April 25, 2017 Brute force it would be about it. Depending on the version of excel used to password it in the first place there might be a backdoor, but google would be your best bet. Quote Link to comment Share on other sites More sharing options...
Scabflake Posted April 25, 2017 Author Share Posted April 25, 2017 Yup, Googled it first before posting. It's a .xlsm file from Excel 2016. Everything I've found was for older .xls files. This is the answer for .xls http://www.excelsupersite.com/how-to-unprotect-an-excel-spreadsheet-if-you-have-lost-your-password/ I tried converting it to .xls and zipping it as mentioned in the comments on that site, all failed. Quote Link to comment Share on other sites More sharing options...
graythang Posted April 25, 2017 Share Posted April 25, 2017 google hashcat xldm (http://blog.infosecsee.com/2015/02/cracking-password-protected-word-excel.html) (if its the IT Director he should pop for a hashcat compatible vid card if you don't have one already) :) Quote Link to comment Share on other sites More sharing options...
0phoi5 Posted April 26, 2017 Share Posted April 26, 2017 Use HashCat (uses CPU) / oclHashCat (uses GPU). It'll have that baby cracked in no time. If it's the IT Director, the password is probably 'bossman123'. Anyone else, it would be 'Tuesday123'. Quote Link to comment Share on other sites More sharing options...
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