────────────────────────────────────────── Bin2 Ransomware Threat Resource ────────────────────────────────────────── Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: After encryption every affected file receives the literal suffix .bin2. • Example: Q1_budget.xlsx → Q1_budget.xlsx.bin2. • Renaming Convention: The original file is overwritten with encrypted data. A new file of identical name plus .bin2 is created.…

Community Ransomware Notes – billingsupp Variant (Last updated: 2024-05-28) Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: “.billingsupp” (always lowercase, always appended after the original extension, e.g., Document.docx becomes Document.docx.billingsupp). • Renaming Convention: – Files are renamed in-place (no folder relocation). – No additional prefix or ransom 6-character substrings are…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: [email protected] The ransomware appends the literal e-mail address “[email protected]” (including the dot) to every encrypted file, e.g., [email protected] Renaming Convention: Original filename is preserved, a dot is added, then the full string [email protected]. No random prefix or hex-ID is added, which is atypical…

bigspermhorseballs – Comprehensive Response Document (Last major update: 2024-06-08) Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: bigspermhorseballs The malware appends this 19-byte string to every encrypted file, after the original extension. Example: report_2024Q2.xlsx → report_2024Q2.xlsx.bigspermhorseballs Renaming Convention: No filename obfuscation or Shuffle-renaming is performed; the victim immediately notices the appended…

BIGLOCK RANSOMWARE – COMMUNITY RESOURCE SHEET Updated: 2024-06-01 Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: .biglock (always lower-case, 8 characters). • Renaming Convention: Original filename + hash derivative + “.biglock”. Example: Budget2024.xlsx ➜ Budget2024.xlsx.[7D29F81B].biglock The eight-character hex string in brackets is the first 8 bytes of SHA-256(file-path + volume…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The malware appends “.bigdata” in lower-case and without a leading dot or additional separator. Renaming Convention: Original: Sales_2024_Q1.xlsx After infection: Sales_2024_Q1.xlsx.bigdata The ransomware preserves the original file name + original extension first, then concatenates “.bigdata”. Nested and long paths are handled in full;…

Technical Breakdown – BIGBOBROSS Ransomware (.bigbobross) 1. File Extension & Renaming Patterns Confirmation of File Extension: Victims will notice every affected file ends with the suffix “.bigbobross”. Renaming Convention: The malware preserves the original filename and simply appends “.bigbobross”. Example: • Before: 2024_Q1_Financial_Report.xlsx • After: 2024_Q1_Financial_Report.xlsx.bigbobross 2. Detection & Outbreak Timeline Approximate Start Date: First…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: big4+ (always written in lower-case, with a leading dot and the ‘+’ symbol). Renaming Convention: Each encrypted file keeps its original base-name but appends “.big4+” twice. Example: Annual_Report_2023.xlsx → Annual_Report_2023.xlsx.big4+.big4+ Directory names are also encrypted and receive the double suffix, contributing to the…

Comprehensive Analysis & Defense Guide – big1 Ransomware Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .big1 (the trailing numeral distinguishes it from unrelated variants and earlier payloads where the malware operator recycled code but changed the suffix). Renaming Convention: After encryption, the file “sales_report.xlsx” becomes sales_report.xlsx.big1 The malware does not…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files hit by this variant receive a verbatim .biden suffix appended after the original extension (ending up with dual extensions such as Report.xlsx.biden or Client_Docs.pdf.biden). Renaming Convention: It does NOT overwrite the original name or add any random characters; victims see an exact…