File Repair After Ransomware Attack

Restoring All File Types Across All Business Environments, 24/7

Specialized Expertise

Broad File Type Support: We repair and reconstruct critical data, including Office documents, Graphics files, CAD plans, Video media & Email archives

Customized Approach

We develop customized strategies specifically tailored to your company’s unique needs and the particular strain of ransomware encountered.

Data Security

All data transfers use encrypted protocols. Additionally, all repair and reconstruction work is performed in our own lab, backed by over 10 years of experience.

Our file repair service specializes in complex, customized remote file repairs designed to quickly restore your critical data. Furthermore, we will create a customized recovery or repair solution tailored specifically to the unique damage found in your files.

We offer comprehensive support for file corruption or data loss regardless of where the data is stored. This includes databases or simple files residing on a Server, SSD or External Disk, SAN, or NAS.

We prioritize minimal downtime and maximum data integrity. We analyze the corruption at the byte level. Immediate remote assistance is available 24/7.

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The Advantage of Choosing Our File Repair Services

We offer superior recovery results compared to automated software solutions by combining deep expertise with a tailored approach:

Experience Makes the Difference: We achieve significantly better results than standard software by engaging with you to understand the file and loss context. Our experience ensures we ask the right questions to maximize recovery success.
Manual Precision: Our manual operations and specialized techniques on corrupted files consistently recover more data than generic, off-the-shelf software.
Universal File Compatibility: Our techniques are proven to work on all types of files, ranging from widely known office software formats to complex proprietary application files.
Automation for Scale: For large-scale incidents, we leverage custom-developed automation tools to efficiently process and repair vast numbers of corrupted files, ensuring speed without sacrificing precision.

Office

Microsoft: DOC, DOCX, XLS, XLSX, ACCESS, PUBLISHER, PROJECT, WORKS.
Open Source: OPENOFFICE, LIBREOFFICE.

Graphics & Imagery

Adobe: PSD (Photoshop).
Standard: JPEG, GIF, TIFF, BMP, PNG.
Specialized: Corel Draw, Raw images (various camera formats).

CAD

Major Suites: Autocad, Catia, Solidworks, Inventor, Siemens NX.
Revit (BIM), MicroStation (DGN)
Creo (Pro/ENGINEER), Fusion 360
SketchUp, Rhino (Rhinoceros 3D)

Video & Multimedia

Standard/HD: MP4, MOV, MPEG, MJPEG, MTS, AVI, MKV, WMV, FLV.
Specialized: DIVX, 3GP, AVCHD, M4V, M2TS, FLV, MXF, INSV.

Email & Messaging

Microsoft: OST, PST (Outlook), Exchange.
Other: Outlook Express, Vista Mail, Thunderbird.

Compression

ZIP, RAR, 7z, Bzip, Tar, Gzip.
LZMA, XZ.
CAB, LHA
ARJ, ACE

Client Guarantee, Satisfaction is Our Standard

You Don’t Pay Unless You’re Satisfied with the Recovery Results.

How Encryption Heightens the Risk of Data Loss?

Encryption itself is a mathematical process and does not typically cause corruption. However, when an error from an outside source (such as hardware failure, a software bug, or a power outage) occurs, encryption magnifies the damage, often rendering the entire file unusable. This magnification is primarily due to the Avalanche Effect.

Key Mechanisms Leading to Corruption of Encrypted Files

The Avalanche Effect

The Principle: Modern encryption algorithms (like AES) are designed so that changing even a single bit in the encrypted data (the ciphertext) causes a massive change in the decrypted result.
The Result: A small, localized corruption event (e.g., a bad sector on a hard drive flips one bit) which might only damage one word in a normal text file, will cause the decryption process to fail completely.

Interruption During the Process

Power Loss/System Crash: If a power surge, operating system crash, or abrupt shutdown occurs while a file is being actively encrypted or decrypted, the file operation is halted mid-process.
The Result: The file is left in a partially encrypted/decrypted state. It is no longer valid plaintext (original data) and it is no longer valid ciphertext (complete encrypted data), resulting in a corrupted, inaccessible file.

Corruption of Metadata

Critical Components: Encryption often relies on small but vital pieces of data, such as the file header, Initialization Vector (IV), or the stored encryption key metadata.
The Result: If an underlying error (e.g., a faulty memory module or disk write error) corrupts these few critical bytes, the entire file becomes a brick. The algorithm may still be sound, but without the correct starting parameters the file cannot be decrypted.

Software Bugs Corrupting Files

Critical Event: The encryption or decryption process is executed using software that contains an undiscovered bug, a vulnerability, or an implementation flaw.
The Result: The flawed software might incorrectly calculate or apply the cryptographic function. The flaw causes the software to write improperly formed ciphertext or incorrectly reconstruct the file.

Essential Tips Before You Send Files

File Diagnosis & Preparation

Contact us to send a sample file for quick diagnosis. Before transfer, compress files (e.g., using 7-Zip) to reduce size and ensure integrity, and clearly list critical files for prioritization.

Safety and Preservation

Always work with copies or disk images; never operate on the original source files, as recovery attempts can worsen damage. If data loss occurred on a device, immediately cease all use.

Information Gathering

Additionally, list all available backups, regardless of age, as they can provide useful references for recovery. Furthermore, record and report all error messages and provide a brief, accurate description.

Do NOT Install New Software

Avoid installing new programs, recovery tools, or updating your operating system onto the drive or partition containing the corrupted or lost files or overwrite the data sectors.

Our R&D unit and corrupted files

File corruption presents an additional set of challenges for recovering lost data. These challenges are not solved by commercial or free data recovery software utilities.

We have developed our own file repair tools that enable recovery from corrupted files, when commercially available software is ineffective.

Hands-on Expertise

Our skilled professionals combine years of experience and knowledge to recover data quickly & securely.

Secure Recovery

We ensure all data is restored safely using trusted methods, protecting your information from further threats.

Data Protection

Every step of recovery prioritizes safeguarding your sensitive files and preventing future data loss incidents.

Proven Results

With thousands of successful recoveries, our methods consistently deliver reliable outcomes.

Remote Recovery Mode: Fast, Secure, and Convenient

We use the SFTP protocol exclusively for all transfers, making security our top priority. File integrity is checked upon arrival to confirm you receive identical files.

Remote Recovery of Corrupted Files via Upload

You can securely upload your corrupted Acronis backup file (using .zip or .rar with a password) to a designated platform. Avoid the cost and complexity of physically transporting the file. Eliminate the risk of physical damage during shipping and any delays associated with customs issues. Your server can remain online and operational if services are running on it during the transfer process.

Our Recovery Process

Benefit from our 10+ years of hands-on experience in data recovery. Our deep expertise provides you with a top-level response, backed by in-depth knowledge of all ransomware types and the specialized techniques required to combat them.

Secure File Submission

Files are transmitted using fully encrypted channels.

Comprehensive Assessment

We evaluate the extent of the ransomware damage.

Advanced Data Recovery

We apply proprietary technologies to decrypt, restore, and repair.

Integrity Verification

All recovered files undergo thorough validation.

Swift Data Recovery, Your Files, Faster

We offer clear service packages tailored to your deadline and budget.

Emergency (24/7)

One-on-One Communication
In-house engineer, never outsourced
Average Turnaround Time: 1 to 3 Business Days

High-Priority

Service during business hours.
1 Expert Engineer
Average Turnaround Time: 3 to 7 Business Days

Standard

Service during business hours.
1 Shared Engineer
Average Turnaround Time: 7 to 14 Business Days

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Data Recovery FAQs

Frequently asked questions

Get fast, accurate answers to common questions regarding ransomware and data recovery. Find essential information about ransomware attacks, effective decryption, and AS Data Recovery’s expert support. We guide you from prevention to full recovery, showing how to respond swiftly and strengthen your digital defense against future threats.

What is AS Data Recovery's success rate, and is my data recovery guaranteed?

AS Data Recovery has a high success rate for common failures. Our policy is “No Data, No Fee.” You only pay the recovery fee if we successfully recover your specified data. While we cannot guarantee 100% recovery in every scenario, we guarantee you only pay for success.

What is the first thing I should do if my hard drive fails or I realize I've lost data?

Immediately power down the device (PC, laptop, external drive). Do NOT attempt to restart it, install recovery software, or open the casing. Continued operation can cause permanent damage and significantly reduce the chances of a successful recovery. Contact AS Data Recovery right away for a professional evaluation.

How much does data recovery cost, and how long will it take?

The cost and time depend entirely on the type of failure (e.g., logical, electrical, or mechanical), the storage media (HDD, SSD, RAID), and the amount of damage. We offer a free, no-obligation diagnosis. Once the diagnosis is complete, we provide a fixed, all-inclusive quote and estimated turnaround time before any recovery work begins.

Is my recovered data safe and secure during the process?

Yes. Data security and confidentiality are our highest priorities. All recovery work is performed in our secure lab with strict access controls. We adhere to stringent confidentiality agreements (NDAs), and your data is encrypted and transferred back to you on a new storage device.

Can you recover data from devices affected by Ransomware?

Yes. AS Data Recovery specializes in both physical damage recovery and complex logical issues like ransomware encryption. We have advanced tools and techniques to evaluate the integrity of the encrypted files and offer the highest possible chance of successful decryption and full file recovery.