AR15.Com Archives
 passworded excel file ...need to crack it.
Tekpc007  [Team Member]
11/22/2013 3:10:56 PM
someone who quit a while ago had passworded a critical excel file , its in Office 2013 too. No one had used the excel file to update it since he left so no one realized it had been passworded and so far this guy says he cant remember what it was when he was contacted about it.... any good and free tools that actually work to remove/crack the password? Been looking on line and tried a few things but no luck so far. and sorry i cant share the file with anyone to mess with. I do know the password is probably 8 to 10 chars , upper ,lower and special and or number... any suggestions ?
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Molotov357  [Team Member]
11/22/2013 3:14:14 PM
Find a brute force cracker and load it on the fastest system you have access to.
matthardcore  [Team Member]
11/22/2013 3:14:43 PM
Open in Vb
Indrid_Cold  [Team Member]
11/22/2013 3:16:26 PM
You're going to have to brute force this. Excel is not friendly if you forget passwords. There aren't any standard recovery options.

ETA: I recently completed a couple excel power user courses and for each one this is something they hammered into the curriculum - don't forget the password, because if you do you are flat out fucked.
Shenanigunz  [Team Member]
11/22/2013 3:16:57 PM
http://www.elcomsoft.com/aopr.html
Iram  [Team Member]
11/22/2013 3:18:41 PM
DMCA.

You may be committing a felony just by trying.

Posted Via AR15.Com Mobile
sirensong  [Team Member]
11/22/2013 3:19:51 PM
[quote]Originally Posted By Tekpc007:
I do know the password is probably 8 to 10 chars , upper ,lower and special and or number... any suggestions ? [/quote]


i suggest faking the data. just download an .xls from the census website, and change the variable names to something that seems relevant.
M2K  [Member]
11/22/2013 3:21:39 PM
try opening it in openoffice or word perfect.
LCPL4ever  [Team Member]
11/22/2013 3:22:01 PM
These are from an old article, but hopefully this helps you out



http://www.tomshardware.com/reviews/password-recovery-gpu,2945.html
Con-Sol  [Team Member]
11/22/2013 3:23:04 PM
Copy and past the fields in each sheet to a new workbook.

I have a few Excel files that I created for my work and the only copies of them anybody gets are in PDF just for that reason.
taptap  [Team Member]
11/22/2013 3:25:52 PM
lead pipe, works every time.
Rolls361  [Team Member]
11/22/2013 3:26:12 PM
Depends on what type of password you're trying to break in Excel (sheet/workbook structure protection are different from workbook open protection). I've had luck with this tool although it does not advertise Excel 2013. If that doesn't work, try this. (I haven't tried it but it advertises cracking Excel 2013 passwords.
Tekpc007  [Team Member]
11/22/2013 3:36:11 PM
[quote]Originally Posted By Shenanigunz:
http://www.elcomsoft.com/aopr.html[/quote]


thanks trying this one , says it will take a month lol but worth a try i guess. I'll just let it run on a pc no ones using for a while.
tcrpe  [Team Member]
11/22/2013 3:42:51 PM
[quote]Originally Posted By Tekpc007:
someone who quit a while ago had passworded a critical excel file , its in Office 2013 too. No one had used the excel file to update it since he left so no one realized it had been passworded and so far this guy says he cant remember what it was when he was contacted about it.... any good and free tools that actually work to remove/crack the password? Been looking on line and tried a few things but no luck so far. and sorry i cant share the file with anyone to mess with. I do know the password is probably 8 to 10 chars , upper ,lower and special and or number... any suggestions ? [/quote]

Just ask him how much $$$ to remember.

Pay him.

Open file.

Blackball his ass in his industry.
Senior_Lab_Boy  [Member]
11/22/2013 3:54:42 PM
Password
Password1
ABCDEFG
1234567
qwerty
ihatemyfuckingjobthiswillshowthem

That sucks! We had an employee do that shit after they were termed, never had a password on the file till the day of or when they realized they were going to get the it. The only option was to rework the lost data from paper or see if my LAN backups had the file unencrypted, took me back a few weeks tapes to find one that he didn't fuck but they atleast got the file with only a month or so data loss, beats doing a years worth of work.
Snips  [Team Member]
11/22/2013 4:00:50 PM
[quote]Originally Posted By Senior_Lab_Boy:
Password
Password1
ABCDEFG
1234567
qwerty
ihatemyfuckingjobthiswillshowthem

That sucks! We had an employee do that shit after they were termed, never had a password on the file till the day of or when they realized they were going to get the it. The only option was to rework the lost data from paper or see if my LAN backups had the file unencrypted, took me back a few weeks tapes to find one that he didn't fuck but they atleast got the file with only a month or so data loss, beats doing a years worth of work.[/quote]

Wow. I guess you can't sue for damages?
ceverett  [Member]
11/22/2013 4:01:03 PM
[quote]Originally Posted By Tekpc007:
[quote]Originally Posted By Shenanigunz:
http://www.elcomsoft.com/aopr.html[/quote]


thanks trying this one , says it will take a month lol but worth a try i guess. I'll just let it run on a pc no ones using for a while.[/quote]
If you think the guy is being honest, that's the best way. Get it running on the fastest system you have. May be worth it to buy something super speedy to run it on. Or just a superfast video card will help a lot too.
jsbcanada  [Member]
11/22/2013 5:00:27 PM
Use a cloud based service that has rainbow tables.

They will be able to crack it in minutes.

g3shooter  [Team Member]
11/22/2013 5:08:48 PM
Try "Password"
Pellinore  [Member]
11/22/2013 5:12:38 PM
[quote]Originally Posted By Tekpc007:
someone who quit a while ago had passworded a critical excel file , its in Office 2013 too. No one had used the excel file to update it since he left so no one realized it had been passworded and so far this guy says he cant remember what it was when he was contacted about it.... any good and free tools that actually work to remove/crack the password? Been looking on line and tried a few things but no luck so far. and sorry i cant share the file with anyone to mess with. I do know the password is probably 8 to 10 chars , upper ,lower and special and or number... any suggestions ? [/quote]


I have done it before and it was easy and free using a macro. ill post back later when i figure it out again.
Pellinore  [Member]
11/22/2013 5:33:00 PM
I used this guide to crack password protected excel sheets.

http://www.crazyexcel.com/2011/11/how-to-unprotect-excel-sheet-without.html
madmike66  [Team Member]
11/22/2013 5:42:41 PM
Wait, I've seen this in a movie a ton of times. Sit down at his desk. Glance to your right, and there is bound to be a photo of something he holds near and dear. Type the name of that thing into Excel, it should open right up. This is how literally every password in every Hollywood movie has ever been cracked by the hero, so it simply has to work.
g3shooter  [Team Member]
11/22/2013 5:45:40 PM
[quote]Originally Posted By Iram:
DMCA.

You may be committing a felony just by trying.

Posted Via AR15.Com Mobile[/quote]

It belongs to his company.

So long as it is their file, they are not breaking any laws.
jjwheeler2  [Member]
11/22/2013 5:45:49 PM
Can you open the file to read the contents? Such as open as read only. If so just open the file and resave (file, save as). I've done that before and it removed the password protecting modifications.
AlamTX  [Team Member]
11/22/2013 5:46:09 PM
http://www.ensode.net/xls-crack.jsf
governmentman  [Team Member]
11/22/2013 5:48:12 PM
Get thoroughly drunk and try to guess the password. Might not work, but at by the end you shouldn't care about the damn password anymore
HKUSP45C  [Team Member]
11/22/2013 5:50:31 PM
Rename the file from "file1.xlsx" to "file1.zip"

Open the workbook xml file, find the "protected" value and delete it

Rename the file back to xlsx
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