Technical Breakdown ──────────────── File Extension & Renaming Patterns • Exact extension: “.anon000” (in rare cases appears as “.anon0000”) • Renaming convention: Original name → ..anon000 Example: Quarterly-results.xlsx → Quarterly-results.1697921832.anon000 • The ransomware adds a second file called <OriginalName>.lnk inside every folder, mimicking the real file name but pointing to a “Lonely Voice – HOWTORECOVERY_FILES.txt” ransom…

Technical Breakdown – Anon Ransomware (.ANON) 1. File Extension & Renaming Patterns Confirmation of File Extension: Files encrypted by Anon receive “.ANON”. Example: Project-Q4.xlsx becomes Project-Q4.xlsx.ANON Renaming Convention: Direct suffixing (no e-mail, hash, or ID token inserted in the file name). Directory depth is preserved; Anon does not move files out of their original paths.…

Combatting the “.annoy” Ransomware – Technical Breakdown & Action-Focused Playbook Technical Breakdown 1. File Extension & Renaming Patterns • Exact Extension Used: The ransomware appends “.annoy” to the original file name. • Renaming Convention: OriginalName.ext.annoy – Example: Annual_Budget.xlsx → Annual_Budget.xlsx.annoy – In contrast to older families, no random suffix/hex strings are added before the extension…

Annabelle2 Ransomware Reference Guide Technical Breakdown 1. File Extension & Renaming Patterns File-extension added: .ANNABELLE2 (upper-case, no dot in some versions) Renaming convention: <original_name>.<original_extension>.ANNABELLE2 Example: Presentation.pptx becomes Presentation.pptx.ANNABELLE2 2. Detection & Outbreak Timeline First public appearance: Mid-February 2023 – attributed to a new sub-group (code-name “EternityShield”) believed to have forked the leaked Babuk/Egregor source. Peak…

Technical Breakdown (annabelle 2.1) 1. File Extension & Renaming Patterns Confirmation of File Extension: Every file is appended with .AnnabelleCreate. Example: Invoice_2024-05.xlsx → Invoice_2024-05.xlsx.AnnabelleCreate Renaming Convention: The malware simply appends the extension in UPPER-CASE; no random hex strings, victim IDs, or secondary markers are inserted. 2. Detection & Outbreak Timeline Approximate Start Date/Period: Initial sightings…

────────────────────────────────────────────── Expert Advisory – Ransomware var. “Annabelle” Extension pattern: “.ANNABELLE” ────────────────────────────────────────────── Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .ANNABELLE (upper-case after the dot). Renaming Convention: Original filename remains fully intact; the .ANNABELLE suffix is simply appended – e.g., document.docx → document.docx.ANNABELLE. Emphasis: directory names themselves are not touched, only file…

Technical Breakdown: ANN Ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: .ann Renaming Convention: Encrypted files are renamed using one of two observed patterns: • [original_name].[original_extension].ann (appends the new extension only) • id-[random_8_chars]_[attacker_email].ann (for fully re-named samples such as [email protected]) The extra “id” segment instructs the victim to send the 8-character identifier…

IN-DEPTH RANSOMWARE GUIDE: .anin_by (Last revised: 2024-06-XX) Technical Break-down 1. File Extension & Renaming Patterns • Confirmation of File Extension: All encrypted files are appended with .anin_by (lower-case). • Renaming Convention: Original_Name.jpg → Original_Name.jpg.anin_by Financial.xlsx → Financial.xlsx.anin_by – The base filename remains untouched; only the extra extension is appended. – Files are NOT moved into…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: ANM (suffix appearing after an 8-character token). Renaming Convention: Format = orig_256_HEX.sig → orig_8HEX_token.ANM Example: report.docx becomes report.A1B2C3D4.ANM The token is system-/campaign-specific and is used during the purchase window to validate a victim. 2. Detection & Outbreak Timeline Approximate Start Date/Period: December 2023…

Ransomware Analysis & Response Guide Variant: anilorak* Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: All encrypted files receive a secondary extension of .anilorak. Renaming Convention: The pattern observed is [original_name][.identification_tag][.anilorak]. Example: QuarterlyReport.xlsx becomes QuarterlyReport.xlsx.id-8C2E5186.anilorak. Sometimes the encrypted file is also moved into a newly-created sub-folder named lock@anilorak. 2. Detection &…