Why Reverse Engineering, Not Brute Force?
Many "password recovery" services on the market rely on brute-force software that sequentially tries every possible character combination. As password length increases, this method can take days or even years, and often provides no guarantee of success.
At Asumona, a different path is taken: the file's encryption algorithm, format header, and internal structure are analyzed using reverse-engineering techniques to identify weak points and password recovery paths. This approach provides much more predictable and reliable results, especially for ZIP, RAR, and Office files using older-generation encryption methods.
Password Recovery for ZIP and RAR Archives
If you've lost access to your .zip, .rar, or .7z files encrypted with compression software (WinRAR, WinZip, 7-Zip, etc.), the applicable reverse-engineering technique is determined based on the archive's encryption method, and your access is restored.
Password Recovery for Word and Excel Documents
The encryption method used in Microsoft Office files (.docx, .xlsx, and older .doc/.xls formats that prompt "Enter password to open this document") is analyzed to restore access to the document. This is a frequently requested service for payroll, contract, and report files prepared years ago in corporate archives, whose passwords have since been forgotten.
- ZIP / RAR / 7Z archive password recovery
- Word (.doc / .docx) document password recovery
- Excel (.xls / .xlsx) file password recovery
- PDF document password removal
- Files protected with older-generation encryption software
- Access recovery for corporate archive and backup files
Detailed Guides by File Type
Since each file type uses a different encryption structure, a separate and detailed guide has been prepared for each of the following categories:
Recovery for image and media files (photos, RAW, memory cards) →
This service is offered only when you are the owner of the file or have lawful access rights — such as forgotten personal/corporate passwords, corporate files left behind by a former employee, or inherited digital archives. Requests for unauthorized access to someone else's files are not accepted.
The file's content is not of interest; only the requested technical operation (password recovery or file recovery) is carried out. The file may need to be opened for verification during the recovery process, but its content is never copied, shared with third parties, or retained on our systems after delivery. If requested, a written confidentiality commitment is also provided.
How Does the Process Work?
File Analysis
The file format, encryption method, and solution path are determined through a free preliminary analysis.
Analysis Result
The expected success rate and timeline are clearly communicated based on the reverse-engineering assessment.
Password Recovery
Following approval, the password recovery process is carried out based on the analysis results.
Delivery
The accessible file is delivered to you through a secure channel.
The preliminary analysis and demo recovery are always free. If, after the demo stage demonstrates that the content is recoverable, you choose not to proceed with the full recovery, a fee of 250 USD + VAT applies, covering the analysis and demo work already performed.
Frequently Asked Questions
Does the password recovery service use brute force?
No. Reverse-engineering methods are used that analyze the file's encryption header and format structure; millions of combinations are not randomly tried.
Which file formats can be decrypted?
Password recovery is offered for compressed archives such as ZIP, RAR, and 7Z, and for Office documents such as Word and Excel.
Does the file whose password is recovered really need to belong to me?
Yes, this service is offered only to the owner of the file or to individuals/organizations with lawful access rights.
How long does the process take?
It depends on the file's encryption method; a clear time estimate is shared after the preliminary analysis.