Comprehensive Resource on the “Crown” Ransomware Family Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The Crown locker appends the .crown extension verbatim (lower-case, no preceding dot if the original file already contained an extension). Renaming Convention: Original file: Report_Q3_2024.xlsx → Encrypted file: Report_Q3_2024.xlsx.crown Very long filenames may be truncated to…

Crow Ransomware – Comprehensive Analysis & Community Resource Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: Crow ransomware appends “.crow” in lowercase without a preceding space or hyphen. Renaming Convention: • Original: Annual_Report_2024.xlsx • After encryption: Annual_Report_2024.xlsx.crow • Some newer variants attempt to wipe shadow copies before renaming, but do not…

CRONI.ZONE Ransomware Analysis & Recovery Guide ( Comprehensive resource for the .CRONI extension ) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: All encrypted files receive the appended extension “.CRONI” (lower-case, with the leading dot). Example: Annual_Report.docx → Annual_Report.docx.CRONI Renaming Convention (static id + strong RNG): The file keeps its original…

Crone Ransomware (a.k.a. Cron86) – Community Resource Last Update: 27 MAY 2024 Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .crone Renaming Convention: OriginalName.ext ⟶ OriginalName.CRYPT.ext.crone In most samples the malware keeps the original filename and its native extension (if any) and appends .CRYPT plus the final .crone. Example: Sales-Report.xlsx becomes…

CrocodileSmile Ransomware – Technical Breakdown 1. File Extension & Renaming Pattern File Extension: .crocodilesmile (sometimes appears in upper-case on Linux targets). Renaming Convention: Example: Budget2024.xlsx → Budget2024.xlsx.crocodilesmile. On servers it also prepends a campaign tag (#SMILE-####:) to the filename once encryption is finished: Q3-Reports.pdf → #SMILE-1047:Q3-Reports.pdf.crocodilesmile. 2. Detection & Outbreak Timeline First Public Sighting: 24…

Last updated: 22 June 2024 Author: S. “CrocWatch” Diaz – Ransomware/Threat-Response SIG Technical Breakdown: Croc Ransomware (.croc) 1. File Extension & Renaming Patterns Confirmation of File Extension: .croc is appended to every encrypted file in lower-case with no dot prefix – e.g., invoice_2024.xlsx becomes invoice_2024.xlsx.croc. Renaming Convention: The malware preserves the complete original file name…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: crlk is appended as a secondary extension after the original file extension (e.g., Budget2024.xlsx.crlk). Renaming Convention: It generates a new, high-entropy random filename for every encrypted object using the pattern — [8 random hex].[8 random hex].[4 random hex].[4 random hex].[12 random hex].crlk Example…

crjoker Ransomware Intelligence Report Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of file extension: Every encrypted file is given the “.crjoker” suffix. Renaming convention: The original filename is left untouched; only the extension is appended (e.g., Report_2024.xlsx.crjoker). Later samples also drop the ransom note READ_ME.txt in every affected folder. 2. Detection & Outbreak…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: crjocker All encrypted files receive the suffix “.crjocker” appended after the original extension. example.docx → example.docx.crjocker Renaming Convention: – Files retain their original name and internal extension (e.g., .docx, .xlsx, .pdf). – The malware does not strip or rewrite the original extension; it…

Ransomware Deep-Dive: “Cris” (a.k.a. “CrySiS”, a.k.a. “Dharma”) Expert reference compiled for defenders who need immediate clarity and step-by-step guidance. 1. Technical Breakdown | Attribute | Cris / CrySiS / Dharma Behavior | |—————————————–|————————————-| | File Extension | .cris (historical); later incarnations append .dharma, .cezar, .arrow, .bip, .combo, .adobe, .{unique-id}.cris, etc. Always look for a double…