Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The current ransomware wave appends the literal extension .barrel to every targeted file. Renaming Convention: Before encryption the malware rewrites the original extension (e.g., 2024_budget.xlsx → 2024_budget.xlsx.barrel). Some samples have an alternate dual-extension trick observed in lateral-movement propagations: report.pdf.barrel.barrel. Inside every directory the…

Barrax Ransomware Defense & Recovery Guide Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .barrax (always lower-case) Renaming Convention: Original file: Document.docx After encryption: 6FE91234.barrax – a new 8-character hexadecimal name is assigned; original file names are not preserved. Additionally, Barrax drops two ransom notes: !README_ATG!.txt in every folder with encrypted…

Technical Breakdown – Ransomware with .barracuda Extension 1. File Extension & Renaming Patterns Confirmation of File Extension: Files are appended with the fixed extension “.barracuda” (lower-case, no dot separator added; it is simply tacked onto the existing file name). Renaming Convention: Original: QuarterlyReport.xlsx After encryption: QuarterlyReport.xlsx.barracuda In multi-folder attacks a root-level file called README_BARRACUDA.TXT (or…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Barak Ransomware consistently appends “.barak” (all lower-case) to every encrypted file. Example: Document.docx becomes Document.docx.barak. Renaming Convention: The malware normally keeps the original filename + original extension intact and simply concatenates “.barak” as a second extension. In recent samples the entire file path…

Bantana Ransomware – Comprehensive Defense & Recovery Guide Last Updated: 2024-05-28 Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .bantana (in some campaigns also observed as .banana with a typo) Renaming Convention: • Drops a single suffix after the original file extension rather than replacing it. • Typical encrypted file: document.xlsx.bantana…

Technical Breakdown File Extension & Renaming Patterns • Confirmation of File Extension: every encrypted file receives the suffix “.banta” (lower-case, no preceding dot-space). • Renaming Convention: the malware prepends an 8-byte hexadecimal victim-ID enclosed in square brackets to the original file-name, then appends “.banta”. Example: Original: Q3Financial.xlsx After: [A4F7B2C1]Q3Financial.xlsx.banta Detection & Outbreak Timeline • Earliest…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Banks1 appends “.banks1” (lowercase) to every file it encrypts. Example: Annual_Report.xlsx becomes Annual_Report.xlsx.banks1, backup_2024-01-15.sql becomes backup_2024-01-15.sql.banks1. Renaming Convention: Original_Filename + original extension + .banks1 The ransomware does not alter the base filename or destroy the original extension, which makes it easier to inventory…

RANSOMWARE DOSSIER – File-Extension: “.banks” TECHNICAL BREAKDOWN File Extension & Renaming Patterns • Confirmation of extension: .banks (e.g., “invoice.docx.banks”) • Renaming convention: victim files keep their original name and original extension, then “.banks” is appended once. Example: Accounts.xlsx → Accounts.xlsx.banks Note: directories are NOT renamed; only individual files. Detection & Outbreak Timeline • First public…

Comprehensive Guide to Banjo Ransomware (.banjo) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: Files encrypted by Banjo ransomware receive the .banjo extension appended after the original file extension (e.g., document.docx.banjo, presentation.pdf.banjo). Renaming Convention: The malware preserves the original filename but adds .banjo as a secondary extension without altering the base…

banhu Ransomware – Technical Breakdown & Complete Recovery Guide (Community Resource – Last updated 2024-05-28) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .banhu is appended after the original file extension, e.g., Annual_Budget.xlsx.banhu, patient_record.pdf.banhu. Renaming Convention: Original name and the trailing extension are preserved; only .banhu is suffixed. No random prefix…