arthur Ransomware – Comprehensive Defense & Recovery Guide | Key Details | arthur | |———————–|——–| | Reported First Peak | 16 Jan 2024 (globally clustered outbreak) | | Extension Added | .arthur | | Typical Example | “2024Invoices.xlsx → 2024Invoices.xlsx.arthur” | | Victim Folders | Ransom note: README-arthur.txt and similar variants placed in every encrypted…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .artemy (lowercase – some early samples used upper-case .Artemy, but current strains have settled on lower-case). Renaming Convention: originalName.exOriginalExtension.artemy – the original file name is preserved, the original extension (e.g., .pdf, .xlsx, .docx) remains in place, and .artemy is appended as the FINAL…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension artemis865-20 continues to use the .artemis865-20 suffix for every encrypted file, but unlike many simpler “double-extension” variants, it overwrites the original extension completely. Instead of report.docx.artemis865-20, victims see: report.artemis865-20. Renaming Convention The malware enumerates every logical volume (fixed, removable, network shares). Files are…

Below is a consolidated “everything-you-need-to-know” dossier about the ransomware that appends .artemis. Treat it as a living document—verify dates and URLs when you put it into production. Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of file extension: All successfully encrypted files receive the suffix .artemis immediately after the original extension (e.g., Report.docx →…

Technical Breakdown (Arsium Ransomware) 1. File Extension & Renaming Patterns Confirmation of File Extension: Arsium appends .arsium to every encrypted file. Example: QuarterlyReport.xlsx becomes QuarterlyReport.xlsx.arsium. Renaming Convention: The malware preserves the original file name and simply appends the new extension after the final “dot”. No base-64 or hex obfuscation is used—this makes it trivial for…

Technical Breakdown – “Arrow” Ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: Every file encrypted by Arrow is appended with “.arrow” (example: Photo.jpg → Photo.jpg.arrow). Renaming Convention: Original filename remains intact, only the extension is appended. If a file already has ~20 characters before the extension, Arrow may truncate the original portion…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Every file encrypted by this strain appends .arricklu-v-*. The asterisk placeholder represents a variable component (the victim-ID/UID32 field) that is unique for each deployment—e.g., Budget2024.xlsx.arricklu-v-4A1F672C. Renaming Convention: • Original name is preserved verbatim, then a hyphen delimiter followed by the static tag “arricklu-v-”…

Ransomware Briefing: *.arrepiante Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .arrepiante (all lower-case). Renaming Convention: Encrypts the file in-place, keeping the original filename. Appends .arrepiante only after the encryption is 100 % completed, eliminating obvious network anomalies such as mass file-rename events. Drops a note named Recuperar arquivos.txt (Portuguese for…

ARPT Ransomware – Community Resource Compiled by the Cyber-Security Incident Response Team (CSIRT) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .arpt – every encrypted file is appended “.arpt” after the original file name / extension. Renaming Convention: Victim-file Document.docx becomes Document.docx.arpt. No extra-ID prefix, random string, or double-extension antics are…

Technical Breakdown: armalocky Ransomware (.[[email protected]].ARMA) 1. File Extension & Renaming Patterns Confirmation of File Extension: .[[email protected]].ARMA – This string is always preceded by the victim’s original file name and, in most cases, the original extension (e.g., report.pdf.[[email protected]].ARMA). – Ironically, the “.ARMA” portion is after the email address, so the true outermost extension is still “.ARMA”.…