How to Recover Files Encrypted by BOBER Ransomware (.random-extension)?
Expert‑Built BOBER Decryptor: Fast, Accurate, Multi‑Platform Recovery
Our team reverse‑engineered BOBER’s encryption to build a decryptor compatible with Windows systems. This tool has already restored data for organizations worldwide, and it is engineered for reliability, performance, and precision.
Related article: How to Decrypt Tiger Ransomware (.Tiger4444) Files Safely and Easily?
How the System Works?
We use secure cloud processing with AI-based verification to ensure recovery integrity. Unique victim ID mapping ensures decryptor matches your exact encrypted batch. A premium version is available for newer BOBER variants even without the ransom note. All scans are read-only and safe before decryption begins.
Also read: How to Recover Data from Vatican Ransomware (.POPE Extension)?
Required Materials for Recovery
You’ll need the ransom note (R3ADM3.txt), access to the encrypted files (e.g., .qkfhr), an internet connection for cloud processing, and local admin rights on affected devices.
The ransom note contains the following message:
All of your files are currently encrypted by BOBER strain. If you don’t know who we are – just “Google it.”
As you already know, all of your data has been encrypted by our software.
It cannot be recovered by any means without contacting our team directly.DON’T TRY TO RECOVER your data by yourselves. Any attempt to recover your data (including the usage of the additional recovery software) can damage your files.
DON’T TRY TO IGNORE us. We’ve downloaded a pack of your internal data and are ready to publish it on our news website if you do not respond.
DON’T TRY TO CONTACT feds or any recovery companies.
We have our informants in these structures, so any of your complaints will be immediately directed to us.To prove that we REALLY CAN get your data back – we offer you to decrypt two random files completely free of charge.
!!!IMPORTANT!!!
If you can’t use the onion panel, download qTox and create an account.
It is completely anonymous.
Here is the link: https://qtox.github.io/
To start communicating with us click on the ‘+’ at the bottom of the window.
Insert our ID in the ‘Tox ID’ field and click ‘Send friend request’.TOX ID: 741C2229CA8163B086DE5E15022940BD888982A4EB3E3CEDEE19413385655C3817512911F092
You can contact our team directly for further instructions through our website :
TOR VERSION :
(you should download and install TOR browser first hxxps://torproject.org)–
YOU SHOULD BE AWARE!
We will speak only with an authorized person. It can be the CEO, top management, etc.
In case you are not such a person – DON’T CONTACT US! Your decisions and action can result in serious harm to your company!
Inform your supervisors and stay calm!
Immediate Actions After a BOBER Infection
To prevent further damage, disconnect infected machines from the network. Preserve the ransom note and keep encrypted files untouched. Avoid rebooting systems or formatting data, as that may trigger new encryption scripts or destroy key metadata. Contact a ransomware recovery expert immediately—quick action significantly improves recovery outcomes.
Methods to Decrypt BOBER and Restore Data
Free Recovery Options: What Might Work for BOBER
Although there is currently no official decryptor specifically released for BOBER ransomware, some CONTI-related decryptors and community tools might provide partial recovery depending on the strain’s encryption parameters. These tools may work if BOBER shares legacy encryption patterns with earlier CONTI versions.
Emsisoft Decryptor for CONTI
Developed during the height of CONTI attacks, Emsisoft’s decryptor works on certain older CONTI strains where the keys were leaked. Because BOBER is a CONTI variant, this tool may have partial success—especially if BOBER inherits encryption from earlier CONTI builds.
- Use Case: Try it on isolated files in a test environment.
- Limitations: Most likely ineffective on newer BOBER variants using random extensions, but worth attempting.
Avast Decryptor for CONTI
Avast released a decryptor for CONTI ransomware targeting variants before their encryption schema evolved. If your BOBER sample was created from an earlier CONTI toolkit, this utility may help recover some files.
- Best For: Testing on small encrypted samples before attempting large-scale recovery.
- Important Note: The decryptor uses heuristic scanning, so only run it in a sandboxed environment to avoid corruption.
ID Ransomware & NoMoreRansom Project
Although they don’t directly offer a BOBER decryptor, these platforms can identify file variants and suggest the closest matching decryptor based on the encrypted sample and ransom note. Uploading .qkfhr or similar encrypted files might lead to matches with legacy CONTI decryptors.
- Recommended Platforms:
- ID Ransomware
- No More Ransom
- ID Ransomware
Backup Restoration
Restoring from isolated or off‑site backups is often the fastest route to full recovery. Ensure backups are intact by verifying file integrity before restoring.
VM Snapshot Rollback
If BOBER infected virtual machines with snapshots, reverting to pre‑infection checkpoints can restore functionality quickly. Ensure snapshot files haven’t been tampered with.
Expert Tools (Paid)
Our proprietary decryptor uses victim ID mapping and AI‑verified cloud processing to safely recover files. A secure upload system and audit‑logged decryption ensure full transparency. Avoid unverified tools or forums; only engage trusted vendors backed by case studies.
Step‑by‑Step Guide Using Our BOBER Decryptor
- Identify files encrypted with a random extension (e.g., .qkfhr) and confirm the ransom note (R3ADM3.txt).
- Disconnect systems and prevent further execution.
- Submit a sample of affected files plus the ransom note to our recovery team.
- Run our decryptor with admin privileges—the tool connects to our secure cloud backend.
- Enter the Victim ID from your ransom note for precise mapping.
- Allow the decryptor to restore your files to their original state.
Also read: How to Recover Files Locked by Cybertron Ransomware (.cybertron18 Extension)?
Compare Recovery Approaches
Offline methods such as snapshots or backups work in air‑gapped environments and avoid cloud exposure. Our cloud‑based decryptor offers expert support and typically faster turnaround with options for remote assistance. Use the method best suited to your infrastructure and variant.
About BOBER Ransomware
BOBER is a variant of CONTI ransomware that encrypts files by appending a random‑character extension after execution. The ransom note warns against recovery attempts, claims to have exfiltrated data, and insists on contact via qTox or a Tor site. Like many ransomware threats, BOBER targets shared storage and spreads rapidly across networks.
How BOBER Operates: A Crackdown Overview?
Initial infection often occurs via phishing emails, pirated software, malicious attachments, or compromised USB drives. The malware then executes encryption, renames files (e.g., 1.jpg becomes 1.jpg.qkfhr), and delivers a ransom note. This note forbids data recovery or law enforcement involvement, threatens data publication, and demands communication via anonymous channels.
Tools, Tactics, and Procedures Used by BOBER Ransomware
Understanding how BOBER infiltrates systems, spreads laterally, and deploys encryption is crucial for both prevention and remediation.
Initial Entry Points: How BOBER Gets In
BOBER often begins its attack through social engineering and technical exploitation.
Phishing and Malicious Attachments
Emails with fake invoices, HR forms, or job applications serve as bait. They may contain infected Office macros, PDFs, or executable payloads. Once opened, the malware silently installs itself.
Cracked Software and Keygens
Many BOBER infections stem from users downloading pirated software embedded with loaders or droppers that silently deploy the ransomware.
Exploit Kits and Malvertising
Victims may be redirected to malicious landing pages via fake ads or cracked download links. These pages use exploit kits targeting outdated software, browser plugins, or missing patches.
Network Propagation and Reconnaissance
Once BOBER is on a system, it seeks lateral movement and privilege escalation.
Credential Dumping with Mimikatz
Using tools like Mimikatz, attackers extract usernames, passwords, and tokens from memory. This enables login to remote machines and domain controllers without raising alarms.
Network Scanning Tools
BOBER actors use scanning utilities like Advanced IP Scanner and SoftPerfect Network Scanner to map the network and find unpatched or undersecured endpoints.
Persistence and Defense Evasion
Ransomware operators use multiple methods to maintain access and avoid detection.
Rootkit Loaders (Zemana, PowerTool)
BOBER may deploy PowerTool or abused legitimate utilities like Zemana AntiMalware to load vulnerable drivers that mask the ransomware’s presence.
Remote Admin Tools (Ngrok, AnyDesk)
Once inside, tools like Ngrok or AnyDesk are used to maintain a persistent, hidden communication channel with compromised machines.
Data Exfiltration and Encryption
BOBER doesn’t just encrypt—it also steals data.
File Transfer Tools (RClone, FileZilla, WinSCP)
Sensitive files are uploaded to cloud storage or FTP servers before encryption begins. These tools are widely available and easy to blend with normal admin activity.
Hybrid Encryption Methods
BOBER uses a hybrid model similar to CONTI: fast symmetric encryption (e.g., ChaCha20 or AES) for file contents, with keys encrypted using RSA or ECC to prevent reverse engineering.
Destruction of Recovery Options
To ensure compliance, BOBER executes vssadmin delete shadows /all /quiet and disables recovery boot options, ensuring even local IT cannot restore from shadow copies.
Indicators of Compromise
Look for files suddenly renamed with random extensions (e.g., .qkfhr), presence of R3ADM3.txt, and sudden inability to open formerly functional documents. System slowdown and unusual outbound traffic could also suggest secondary payloads.
Mitigation and Prevention Tips
Secure email gateways, avoid downloading cracked tools or keygens, and keep operating systems up to date. Backup important data regularly to immutable or off‑site storage. Use network segmentation to limit ransomware propagation. Employ endpoint protection to detect suspicious behavior early.
Victim Statistics & Timeline
Countries Affected
Industries Affected:
Timeline of Confirmed BOBER Attacks:
Conclusion: Recover Your Data, Reclaim Control
BOBER ransomware may pose serious disruption, but with the right tools, timing, and strategic support, full recovery is within reach. Avoid unverified decryptors or panic payments. Trust proven, transparent methods and expert-led solutions. Whether you’re dealing with a single infected system or an enterprise-wide breach, our BOBER decryptor and recovery team are ready to assist.
Frequently Asked Questions
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