Ransomware Deep-Dive – Variant tagged with “.a6f2t” ⚠️ Current Status: NO PUBLIC DECRYPTOR exists; treat every infection as data-loss until proven otherwise. The following information is drawn from publicly available incident reports, telemetry from major SOC / ISAC feeds, and reverse-engineering sessions performed by independent analysts between May 2024 and June 2024. Technical Breakdown 1.…

A604Ransomware Resource (extension: “.a604af9070”) Updated: June 2024 ──────────────────────────────────────────── Technical Breakdown 1. File Extension & Renaming Patterns • Confirmation of File Extension: “.a604af9070” • Renaming Convention: ‑ Original file name is unchanged; the extension is simply appended. Example: QuarterlyReport.xlsx → QuarterlyReport.xlsx.a604af9070 ‑ There is no second-stage rename (no base-64 or randomized hex prefix observed). 2. Detection…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: a5zfn – Always appears in lowercase and is appended after the original file extension. Example: budget.xlsx.a5zfn Renaming Convention: <original_filename>.<original_extension>.a5zfn No prefixes, IDs, or ransom tags are added to the encrypted file names, which complicates quick identification at a glance. 2. Detection & Outbreak…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: a19 Renaming Convention: Files are renamed in the following pattern: <original_filename>.<original_extension>.id-<8_digit_hex_identifier>.[<email_contact>].a19 Example: 2024Budget.xlsx → 2024Budget.xlsx.id-7A3C9E04.[[email protected]].a19 2. Detection & Outbreak Timeline Approximate Start Date/Period: Late-August 2023 (first public submissions to VirusTotal and ID Ransomware), with the first significant surge observed 02 September 2023 when…

Technical & Recovery Resource – Ransomware Extension .a0a82d ⚙️ Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .a0a82d – every encrypted file is appended with this new extension, keeping the original extension in place (e.g., report.xlsx.a0a82d). Renaming Convention: Original → [original filename].[original extension].a0a82d The ransomware does not prepend strings, generate random…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: _zosta Renaming Convention: Typical pattern: <original_filename>.<original_extension>._zosta (e.g., reportQ1.xlsx becomes reportQ1.xlsx._zosta). Older samples sometimes append an additional random 4–6 hex-digit suffix (._zosta-A1B2C3), but this variant has been largely superseded by the single-suffix design since late 2023. 2. Detection & Outbreak Timeline Approximate Start Date/Period:…

Technical Breakdown: _time_is_limited Ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: The strain appends . _time_is_limited – note the leading space character, which many users overlook when manually trying to rename files. Renaming Convention: Original naming pattern → original_name.txt␠_time_is_limited (The ransom note is always dropped as readme_for_unlock.txt in every affected folder.) 2.…

Introduction “secretcode.txt” is not a file-extension that ransomware appends to encrypted documents; it is literally a ransom-note filename that a number of older and more recent families drop at the root of every affected folder (sometimes also placed on the desktop and inside %PUBLIC%). When you are seeing hundreds of files named “secretcode.txt,” the real…

Comprehensive Resource on the “_ryp” Ransomware ────────────────────────────────────────── TECHNICAL BREAKDOWN ────────────────────────────────────────── File Extension & Renaming Patterns • Confirmation of File Extension: The ransomware appends the literal end-of-name suffix “ryp” (no dot, lower-case) to every file it encrypts. • Renaming Convention: The malware does not change the original file name or extension in any other way, only…

Ransomware Alert: “[email protected]_.btc” Technical & Recovery Resource (Last reviewed: 2024-05-18) 1. Technical Breakdown A. File Extension & Renaming Patterns Extension used: .btc Rename template: <original-file-name>.id-<8-hex-chars>.[<email-contact>].btc Real-world sample: Invoice_2024_03.docx → Invoice_2024_03.docx.id-CF1AE284.[[email protected]_].btc B. Detection & Outbreak Timeline First observed: mid-March 2024 (public submissions to ID-Ransomware & VirusTotal spiked 2024-03-16). Wave-to-date: Low-volume, highly targeted (SMBs + healthcare), but…