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Advanced ZIP Password Recovery |
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Advanced ZIP Password Recovery (or simply AZPR) can be used to recover lost or forgotten passwords for a ZIP/PKZip/WinZip archives. Unfortunately, there is no known method to extract the password from the compressed file; so the only available methods are brute-force, dictionary-based and known-plaintext attacks.
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Well, there are a lot of programs like this around, but all of them have their own "pros" and "cons". Here is a brief list of AZPR's advantages:
- The program has a convenient user interface
- The program is very fast: up to fifteen million passwords per second (on Pentium III)
- Very fast and effective known plainext attack is available
- The program can work with archives containing only one encrypted file
- ZIP files created by various software packages (including PKZIP 1.x) are supported
- All compression methods (storing, imploding, shrinking, inflating) are supported
- Self-extracting archives are supported
- The program is customizable: you can set the password length (or length range), the character set to be used to generate the passwords, and a couple of other options
- You can select the custom character set for brute-force attack (non-English characters are supported)
- Dictionary-based attack is available
- The "brute-force with mask" attack is available
- The maximum password length is not limited
- No special virtual memory requirements
- You can interrupt the program at any time, and restart from the same point later
- The program can work in the background, using the CPU only when it is in idle state
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As you can see, ZIP password protection is not very secure -- AZPR
can recover 90-95% of all passwords in a reasonable time. Even if the
password is long is well selected, known-plaintext attack might be
applicable, which can decrypt an archive in just a few minutes
(sometimes hours). We strongly don't recommend you to use WinZip to
compress/encrypt important data; instead, please have a look at
CuteZIP
from the authors of well-known CuteFTP
-- absuletely the best ZIP compression utility. Besides "standard" ZIP
encryption, it allows to you to use very strong BlowFish algorithms
for securing your data. Moreover, it supports all most-popular archive formats (ARJ,
RAR, CAB, ACE) and has a lot of very nice features like cdripping, mp3
encoding and shell integration. A must-have tool for everyone!
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Look at other Password recovery software we have (for RAR / ACE / ARJ / Word97 / Excel97 / Office97 / Word95 / Excel95 / Office95 / VBA / Access / Outlook / Outlook Express / Project / Money / Lotus SmartSuite (WordPro, 1-2-3, Approach, Organizer) / Adobe Acrobat PDF / Adobe Acrobat eBooks / ACT! / Paradox / Quicken / QuickBooks / Backup / ICQ)
Russian version is available there.
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Important! Unregistered version can be used during 30 days after installation (although it doesn't expire, actually) and has some limitations. You can order the fully licensed version of AZPR over the Internet from RegNow with any major credit card. The ordering page is on a secure server, ensuring that your confidential information remains confidential. As soon as RegNow notifies us that your order has been processed (usually in one business day), we will provide you with the registration code which will register your copy of AZPR. You can also make the usual wire transfer to our bank account in U.S. or send the check, if you would not like to use you credit card in the Internet. Please don't send cash to our mailing address!
Note: With the Personal License ($30), you can use the program for non-commercial purposes in non-business, non commercial environment. To use the program in a corporate, government or business environment, you should purchase a Business License ($60).
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Note: If you've made a payment, but haven't got a confirmation letter with your serial number (registration code) within a reasonable amount of time (two business days for credit card payments or two weeks for other payments), please notify us about that! We're very sorry for any inconvenience caused by those delays.
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Get more information about AZPR
View the screenshot of AZPR
Download AZPR 3.52 (June 13, 2001; 684K)
Subscribe to AZPR mailing list.