Beethoven Ransomware Threat Intelligence & Recovery Guide Last Updated: 2024-05-30 Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: .beethoven (exact lower-case string, no variant forms have been documented). • Renaming Convention: – Before: ProjectQ4.docx – After: ProjectQ4.docx.beethoven – Dual extensions (.beethoven.beethoven) have NOT been observed. – Directory wall-paper drops a…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware appends .beer at the end of every encrypted file (after the final dot and the original extension), e.g. Invoice_03_2021.pdf.beer. Renaming Convention: – File names are preserved; only the extension string is added. – When encryption is executed in “double-extension” mode the…

Ransomware Profile: beep Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .beep Renaming Convention: Files are renamed following the pattern: Original name → <OriginalFileName>.<OriginalExtension>.beep (e.g., 2024-Financials.xlsx becomes 2024-Financials.xlsx.beep) 2. Detection & Outbreak Timeline First documented appearance: 14 August 2023 in a regional targeting wave across Eastern Europe. Wider campaign detected: 4…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: “beef” (always lower-case, never upper-case or mixed). Renaming Convention: Files are overwritten in-place rather than being copied and renamed. The encrypted content is re-written back to the original file path and the extension “.beef” is appended. Example: Q3Financials.xlsx becomes Q3Financials.xlsx.beef The last modified…

Beast Ransomware – Comprehensive Threat & Recovery Guide (Ransomware family tied to the “.beast” file extension) Technical Breakdown 1. File Extension & Renaming Patterns File Extension Confirmation: “.beast” Encrypted files retain their original name but have “.beast” appended as the last extension. Example: Project_Doc.docx.beast, family_photos.jpg.beast, db_backups.sql.beast Renaming Convention: The malware does not prepend anything, so…

Technical Breakdown: BEAR Ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: .bear (lower-case, occasionally found appended twice if the file was previously encrypted by another ransomware strain). Renaming Convention: <original_filename>.<random_10_hex_chars>.bear Example: Annual_Report_2023.docx becomes Annual_Report_2023.docx.a3f72c19be.bear. The 10-character hex string is unique per file and serves as an internal ID used during negotiation/key storage.…

Robust Emergency Resource – Ransomware .Beamed Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .beamed Renaming Convention: The malware retains the original filename and all existing extensions, then appends the new extension in lowercase Example: Project2024.xlsx → Project2024.xlsx.beamed No email address, ID string, or “-readme” component is inserted—this minimalist naming is…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files are appended with “.beaf” (all lowercase). Renaming Convention: Original naming: document.docx → Post-encryption: document.docx.beaf If the sample added a random hex 6–8-byte prefix (formerly seen in pre-Q2-2022 strains) you may see 0D7F8A89_document.docx.beaf; however, recent incidents show only the .beaf suffix. A small…

Technical Breakdown – BDKR Ransomware (.bdkr) 1. File Extension & Renaming Patterns • Confirmation of File Extension:   Affected files receive the verbatim suffix .bdkr.   Example: Financial_Q3.xlsx becomes   Financial_Q3.xlsx.bdkr. • Renaming Convention:   The malware prepends a hard-coded actor email and a pseudorandom UID that uniquely identifies the victim, separated by underscores: [locker_email]_[VictimUID]_[OriginalName].bdkr Real-world sample: lockhelp@onionmail[.]org_D1A2F03F_archived.zip.bdkr 2. Detection & Outbreak Timeline…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware appends the fixed six-character extension .bdev to every encrypted file. Example: – Original: Annual_Report.docx – After attack: Annual_Report.docx.bdev Renaming Convention: There is no prefix, no hash/UUID insertion and no folder-name or date-stamp manipulation. The malware simply concatenates .bdev to the existing…