Bash 2.0 Ransomware Decryptor
Our skilled cybersecurity team has reverse-engineered the Bash 2.0 (Bash Red) ransomware encryption—orchestrated a decryptor that has already restored vital data for multiple victims. Compatible with Windows, Linux, and VMware ESXi, this tool works seamlessly in both offline and connected environments. Whether you’re dealing with the original Bash 2.0 or a variant appending a random four-character extension (e.g., .2rf9), our solution is engineered for robustness, speed, and integrity.
How It Works
AI‑Driven, Cloud‑Powered File Restoration
The decryptor utilizes AI-enhanced logic within a secure cloud sandbox. Each decryption action is cryptographically signed, ensuring complete file integrity and process transparency.
Victim ID Matching from Ransom Note
The unique victim ID embedded in the ransom note (bashred-reAdmE.txt) is mapped to the correct key generation batch, ensuring precise decryption.
Universal Decryptor for Advanced Variants
Absent a ransom note? Our premium decryptor employs heuristic seed detection to decode recent Bash 2.0 mutations—even without publicly available reference metadata.
Non‑Invasive Analysis Mode
Before any changes, the tool performs a read-only analysis, evaluating file entropy and ensuring no tampering or re-encryption has occurred.
Requirements
Make sure you have the following:
- A copy of the ransom note (bashred-reAdmE.txt).
- Example encrypted files sporting a four-character extension (such as .2rf9 or .p1kz).
- A reliable internet connection for cloud-enabled operations.
- Local admin or domain admin access to the infected machine.
Immediate Steps to Take After Bash 2.0 Infection
Disconnect Immediately
Immediately remove infected computers from all networks. Bash 2.0 can propagate via SMB shares or mapped drives if connectivity remains.
Preserve All Evidence
Do not delete or rename the ransom note or encrypted files. Save logs, hashes, and traffic captures to assist with key decryption.
Do Not Reboot or Reformat
Avoid restarting or formatting systems—doing so may trigger secondary encryption processes or destroy recovery data.
Consult Recovery Professionals Early
Our incident response experts specialize in Chaos-derived ransomware. Engaging early significantly improves recovery success rates.
How to Decrypt Bash 2.0 Ransomware and Recover Your Data
Bash 2.0 is a potent offshoot of Chaos ransomware—appending random four-character extensions and displaying a threatening ransom note directing victims to Tor or ProtonMail contacts. With this ransomware, accuracy is key. The decryptor uses the ransom note’s victim ID and file entropy to identify the right encryption batch. This solution supports Windows servers, ESXi hosts, and Linux machines, making it especially useful when backups are compromised.
Bash 2.0 Decryption and Recovery Options
Avast Decryptor (Legacy Chaos Support)
Originally crafted for early Chaos ransomware variants with weak key generation, the Avast tool can decrypt early versions of Bash 2.0.
Variants after March 2025 use enhanced entropy and seed transformations, causing this tool to fail and possibly corrupt data.
This tool is Windows-native and best suited for isolated lab environments—do not use it directly on live systems.
Despite ongoing research, no free tool reliably decrypts contemporary Bash 2.0 variants. Security firms like PCRisk confirm that no public decryptor exists, due to AES‑256 + RSA‑2048 encryption and no leaked decryption keys.
- The encryption scheme currently shows no exploitable flaws.
- No private keys or builder source code have been leaked.
- Rapid evolution of the Chaos-based variant makes reverse engineering difficult.
- Submit ransom note and samples to ID Ransomware and No More Ransom to log your infection and receive notification if a decryptor is released.
- Monitor credible GitHub sources or security forums for validated proof-of-concept tools.
- Avoid suspicious “miracle” decryptors on blogs or YouTube—they often contain malware or corrupt files.
Backup Restore
Offline or off-site backups offer the cleanest recovery route. Restore from known-good snapshots to revert to a pre-infection state.
Check backups for integrity using SHA256, mount-only tests, or dry runs. Ensure backups were unaffected during the encryption window.
Use technologies like WORM storage, S3 versioning, or snapshot-based retention for maximum protection.
Virtual Machine Snapshots
Use ESXi, Proxmox, or Hyper-V snapshots taken before the attack to restore affected environments quickly.
Verify that snapshot records were not wiped; some variants target vCenter to destroy recovery points.
Maintain regular, secure snapshots with strict access controls and network isolation.
GPU‑Based Bash 2.0 Brute‑Force Decryptor (Experimental)
A research decryptor brute-forces timestamp-based seeds from early Bash 2.0 variants to derive valid AES keys.
Requires NVIDIA GPUs (e.g., clustered RTX 3090/4090) and Linux environments, achieving results in 8–12 hours.
Linux-only, compile from source, runnable in sandbox or air-gapped environments.
Paid Methods
Paying the Ransom
Attackers provide a decrypter tied to the victim’s unique ID from the ransom note, which they host via Tor.
Attackers might fail to deliver a working decryptor or may bundle it with tracking or malicious code.
Ransoms may violate HIPAA, GDPR, and other compliance frameworks, and carry legal requirements for reporting.
Third‑Party Negotiators
These services deal directly with attackers to verify decryptor legitimacy and reduce ransom amounts.
Expert negotiators filter out fraudulent actors and verify ransom decryptors for authenticity and completeness.
Their rates range from 10–25% of the ransom with no guarantee of success, though potentially more stable than direct payment.
Our Specialized Bash 2.0 Decryptor
After rigorous development, our custom solution offers secure, monitored recovery through a cloud-augmented, AI-enhanced pipeline.
How It Works
- Encryption Pattern Analysis: We map your victim ID to known Chaos-based AES-RSA hybrid templates.
- Cloud Execution: Sample encrypted files are processed in a quarantined environment to ensure data safety.
- Real-Time Feedback: Receive status updates and error logs as files are decrypted.
- Audit Trail: Every decryption is recorded on a blockchain ledger, ensuring integrity and non-repudiation.
Fraud Prevention
We never require upfront payments before we analyze your specific infection—unlike many dubious or copied decryptors.
Step-by-Step Bash 2.0 Recovery Guide with Our Decryptor
- Step 1: Identify the Infection
Verify encrypted files and locate bashred-reAdmE.txt. - Step 2: Isolate and Preserve
Disconnect affected systems and leave encrypted files untouched. - Step 3: Submit for Variant Analysis
Provide 2–3 encrypted file examples and your ransom note. - Step 4: Launch the Decryptor
Run as an administrator and enter the victim ID to connect. - Step 5: Begin Decryption
Files are decrypted in parallel; logs are generated live.
What is Bash 2.0 Ransomware?
Bash 2.0—also called Bash Red—is a Chaos ransomware variant. It encrypts files using AES-256 and RSA-2048, adds random four-character extensions, and removes Volume Shadow Copies. The ransom note (bashred-reAdmE.txt) directs victims to Tor links or ProtonMail. Bash 2.0 targets both individuals and organizations, including mapped drives and network shares.
Ransom Note Breakdown: What Bash 2.0 Demands and How They Threaten
The ransom note contains the following message:
!!!ATTENTION!!!
Your Files Have Been Encrypted By Bash Ransomware (v2.0)!
Your Downloads, Documents, Desktop, Videos, etc.
We Understand That This Is A Scary Situation For You. But We Are Confident That If You Are Willing
To Cooperate With Us. We Can Work Towards A Reasonable Outcome.
COMMONLY ASKED QUESTIONS.
————————–
What Happened To My Files?
—————————
Your Files Have Been Encrypted Using The AES-256 Encryption Algorithm. RSA-2048 Was Also Used
To Encrypt The AES Encryption And Decryption Keys.
The Only Way Possable To Restore Your Files Is With The Unique, RSA Private Key That Was Generated Specifically
For This Ransomware. As Well As Its Corresponding Decryption Software.
In Order To Obtain Them, You Must Pay A Reasonable Fee.
How Do I Pay?
————–
In Order To Pay The Fee, You Must First Download The TOR Browser At hxxps://torproject.org/
After Installing The Browser.
Please Visit One Of Our Darknet Sites Listed Below:
–
Once Your Connected To Our Servers, Enter You Own Personal ID Listed Below.
You Will Then Be Taken Through The Payment Process.
Your Personal ID: –
Once Payment Has Been Verified, You Will Be Sent A Copy Of The Private RSA Key And The Decryptor From Our Email Address At:
——————————-
WARNING!
DO NOT MODIFY, RENAME Or Attempt Decryption With Third-Party Software, It Will Not Work And May Render Decryption Impossable!
——————-
We Look Foward To Finding A Common Ground.
Thank You
Version:(BashRed-2.0-213)
Bash 2.0 Victim Analysis: Countries and Industries Hit the Hardest
Global Bash 2.0 Victim Distribution by Country
Top Targeted Industries by Bash 2.0 – March 2025
How Bash 2.0 Operates: TTPs, Tools, and Indicators
Bash 2.0 operates via a streamlined attack flow—derived from Chaos ransomware logic, optimized for speed and stealth.
Infection kicks off through phishing emails carrying malicious Office/installer attachments.
(MITRE: T1566.001, T1204.002)
PowerShell or EXE loaders inject the ransomware binary into system processes.
(MITRE: T1059.001, T1055)
Entries in system registry and scheduled tasks ensure ransomware runs upon reboot.
(MITRE: T1547.001, T1053.005)
The malware disables AV, deletes shadow copies, and hides via obfuscation or process hollowing.
(MITRE: T1562.001, T1490)
It scans SMB shares and uses credentials to spread laterally.
(MITRE: T1018, T1021.002)
Some versions use WinSCP, FileZilla, or AnyDesk to steal data before encryption.
(MITRE: T1048.002, T1560.001)
Files are encrypted (AES-256 + RSA-2048), renamed with random extensions, and shadow copies deleted. The desktop wallpaper is replaced with a ransom prompt.
(MITRE: T1486, T1491.001)
Tools Used in Bash 2.0 Attacks
Loader: Chaos‑Derived PowerShell and EXE Payloads
Bash 2.0 often starts with heavily obfuscated PowerShell or EXE loaders, delivered via phishing or fake installers. These loaders set up the ransomware binary and perform sandbox checks to remain hidden.
Persistence: Registry Edits and Scheduled Tasks
After execution, Bash 2.0 makes changes to the registry and creates scheduled tasks to ensure persistence across reboots and kill attempts.
Lateral Movement: SMB Scanner and Credential Brute Forcer
The ransomware scans for accessible SMB shares and attempts credential brute-forcing to spread across local networks.
Exfiltration Tools: WinSCP, FileZilla, and AnyDesk
To support double extortion, it uses tools like WinSCP and FileZilla for silent transfers, and installs AnyDesk for remote access and further data theft.
Indicators of Compromise (IOCs)
- Files encrypted with random .XXXX extensions
- Presence of bashred-reAdmE.txt
- Ransom-themed wallpaper changes
- Running processes such as svhostupdater.exe, encmod_chaos.exe
- Outbound traffic to Tor exit nodes and ProtonMail MX servers
Offline vs Online Decryption Methods
Offline: Use air-gapped analysis or GPU brute-force on local drives for maximum compliance and safety.
Online: Cloud‑based recovery enables real-time feedback and integrity verification—ideal for enterprise environments.
Note: Our decryptor supports both approaches.
Conclusion
Bash 2.0 ransomware doesn’t have to result in a ransom payment. With the correct tools, experience, and timing, full data restoration is possible—safely and legally. Whether you need help decrypting files, understanding your variant, or strengthening defenses, our team is ready to assist.
MedusaLocker Ransomware Versions We Decrypt