================================================================================ RANSOMWARE PROFILE – DAVDA Community-based technical dossier & recovery playbook Version 1.0 – 30-May-2024 Technical Breakdown 1. File Extension & Renaming Patterns • Confirmed extension appended: “.davda” (lower-case) • Typical renaming convention: [original-file-name].[extension].davda – in English that means your report.xlsx is turned into report.xlsx.davda and the byte structure is overwritten from offset 0 for…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: DATUN Renaming Convention: After encryption the ransomware appends “.DATUN” as a secondary extension. Original: Invoice_2027.docx → Invoice_2027.docx.DATUN Some early samples also prepend a notice tag: [ID-<16_chr_client_ID>]+email_address+.DATUN (e.g., Invoice2027.docx.[7A9B12CDEF456ABC]+datun@ tuta.io.DATUN). 2. Detection & Outbreak Timeline First Sightings: 6 June 2023 (in-the-wild campaigns against SME…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware appends .dati (exactly four lower-case characters) to every encrypted file. Renaming Convention: Original: Quarterly_Report.xlsx After encryption: Quarterly_Report.xlsx.dati There is no affixed victim-ID or email address in the file-name, which distinguishes .dati from many earlier variants. 2. Detection & Outbreak Timeline Approximate…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: datawait Files that were successfully encrypted are appended with the literal extension .datawait (for example, Invoice.xlsx becomes Invoice.xlsx.datawait). Renaming Convention: – The exact base filename and the original extension are preserved; only the new .datawait layer is appended. – This behavior is consistent…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files encrypted by the ransomware whose ransom-note refers to contact [email protected] are appended with “.042”. Renaming Convention: • On NTFS volumes the pattern is: [original_name] [random-8-char “id”][email protected] Example: [email protected] • On NAS shares (Linux appliances) it may switch the email domain for “.id-[8-chars]”,…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: datastop Renaming Convention: – Typically adds the literal suffix .datastop after the original extension, e.g. Vacation.jpg → Vacation.jpg.datastop. – In a few campaigns it also injects a campaign-specific random 6-character group ID between the original name and the new extension (e.g. Report.xlsx →…

Datarip Ransomware – Definitive Field Guide Variant identifier: .datarip Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Every file encrypted by this strain receives the new suffix “.datarip” (e.g., Report_2024.docx.datarip). Renaming Convention: Original filenames are fully preserved—nothing is appended, truncated, or randomised until the extension is added. In some samples, if…

Datalock Ransomware – Comprehensive Analysis & Recovery Resource ###### Last updated: 2024-06-26 Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .datalock (exact string, lower–case, appended after the last “.” in the original file name). Renaming Convention: original_filename.original_ext.datalock Example: Report_2024_Q2.xlsx becomes Report_2024_Q2.xlsx.datalock. → No email address or random ID inside the new…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: dataleak1 does not simply append a new file extension; instead it prepends the string dataleak1- to the original file name and keeps the original extension intact. Example: invoice_2024_Q1.xlsx becomes dataleak1-invoice_2024_Q1.xlsx. Renaming Convention: Every encrypted file is also accompanied by: a ransom note dropped…

DISCLAIMER – This field-note is compiled from publicly available reversing reports, private IR case notes and the Ransomware-Recovery Tracker. Always verify hashes and tools against current, trusted sources before use. TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns • Confirmation of File Extension: .dataleak (plus an optional 6-digit campaign ID appended as .<campaign> – e.g.,…