Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware assigns the literal string “.bitcoinpayment” (lowercase) as a secondary extension. Renaming Convention: Files keep their original name and primary extension (e.g., Report.xlsx becomes Report.xlsx.bitcoinpayment). A high-integrity UTF-8 ransom note (usually named READMETODECRYPT.txt or DECRYPT_INFO.hta) is dropped in every affected directory. 2.…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files encrypted by the bitcoin ransomware variant are appended with .bitcoin. Renaming Convention: OriginalName.docx → OriginalName.docx.bitcoin The malware preserves the original file name and its original extension, then simply tacks .bitcoin to the end. 2. Detection & Outbreak Timeline Approximate Start Date/Period: Campaign…

bitchlock Ransomware Reference Guide Comprehensive community resource for the strain that appends the extension .bitchlock Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .bitchlock (case-insensitive; sometimes .BiTcHlOcK in early samples). Renaming Convention: Original: Project_2024.xlsx → After encryption: Project_2024.xlsx.bitchlock No pre-prending ID strings, but leaving the original file extension visible is deliberate…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: bit Renaming Convention: The ransomware replaces the original extension of every file it encrypts with the generic “.bit” string (e.g., ReportQ32024.xlsx → ReportQ32024.xlsx.bit). It does not prepend or append any unique victim-ID, attacker-ID, or campaign tag, making it impossible to identify an individual…

ransomware.bisquilla – Community Response Guide Security bulletin compiled 2024-06-03 – last updated 2024-06-03 Technical Breakdown: 1. File Extension & Renaming Patterns Exact file extension added: .bisquilla Renaming Convention: Original → [original-name][id-<十六进制 8-chars>].bisquilla Example: Quarterly_Budget.xlsx → Quarterly_Budget.id-4F2A1E9B.bisquilla The 8-byte hexadecimal value is unique per victim (often derived from HDD serial XOR’d with timestamp). 2. Detection &…

bisamware – Comprehensive Technical & Recovery Guide Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .bisamware ‑ This is appended after the original file extension, e.g., Invoice.xlsx → Invoice.xlsx.bisamware. Renaming Convention: Files are never re-named without their original names being preserved; only the additional suffix .bisamware is added. Directory markers: a…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: birbb – each encrypted file receives the suffix .birbb appended immediately after the original extension. Example: Annual_Budget.xlsx.birbb Renaming Convention: The malware preserves the entire original filename and path, only appending .birbb. This is characteristic of Chaos-family derivatives that use single-step renaming instead of…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The .bip extension is appended ONLY after the original file extension (e.g., Report.xlsx becomes Report.xlsx.bip). The original extension is always preserved, making mass identification in logs or file managers straightforward. Renaming Convention: In addition to “filename.extension.bip”, the ransomware drops a second-stage rename when…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware appends the literal string “.biobio” immediately after the original file extension (e.g., Word-Report.docx → Word-Report.docx.biobio). Renaming Convention: Original structure is left intact—no random IDs, ransom e-mails, or UTC timestamp prefixes are added. Only the final “.biobio” is appended once per file.…

Technical Breakdown: File Extension & Renaming Patterns • Confirmation of File Extension: “.bioawards” (lower-case, pronounced “bio-awards”). Example: Sales-Report.xlsx → Sales-Report.xlsx.bioawards • Renaming Convention: Original filename is left intact and the extension is simply appended. No hex-segments, email addresses, or victim IDs are added. Detection & Outbreak Timeline • Approximate Start Date/Period: First telemetry was seen…