Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: *.CRYNOX Renaming Convention: The underlying file name remains intact, but the ransomware injects a 10-byte header and overwrites the original extension so the final pattern becomes original_name.ext → original_name.CRYNOX Example: report_2023.doc → report_2023.doc.CRYNOX 2. Detection & Outbreak Timeline Approximate Start Date/Period: February 2024…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .crylocker Renaming Convention: • Keeps original file name but appends the .crylocker extension (e.g., Q2-Budget.xlsx → Q2-Budget.xlsx.crylocker). • Inside every folder with encrypted content, a file named README_TO_RESTORE_FILES.txt is dropped. • Directory structure, metadata (EXIF, ID3, etc.), and time stamps remain intact—only the…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files affected by Crying ransomware are given the extension .crying in lowercase. Renaming Convention: Encrypted files retain their original file name plus the original extension, with .crying appended. Example: QuarterlyReport.xlsx → QuarterlyReport.xlsx.crying 2. Detection & Outbreak Timeline Approximate Start Date/Period: The first large-scale…

CryForMe Ransomware Threat Dossier (Extension: .cryforme) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .cryforme is appended verbatim to every encrypted file (e.g., Budget2024.xlsx → Budget2024.xlsx.cryforme). Renaming Convention: The malware keeps the original file name and extension intact, then simply suffixes .cryforme. There is no Base64 or hex obfuscation of the…

Comprehensive Guide: CYRFILE Ransomware (victims may first notice the file extension “.cryfile” appended to every encrypted file) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware uses “.cryfile” (lowercase). Renaming Convention: Original → Picture.jpg.cryfile Pattern: OriginalName.OriginalExt.cryfile No additional prefixes or random hex strings are prepended, keeping filenames short but instantly…

Technical Breakdown: CryEye Ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: .cryeye (in lower-case, appended after the final dot of the original file name). Renaming Convention: [original_name].[original_extension].cryeye. Example: Spreadsheet_Q4.xlsx becomes Spreadsheet_Q4.xlsx.cryeye. No preceding e-mail address or random string, which differs from double-ext families like “.id-12345.[address].cryeye”. 2. Detection & Outbreak Timeline Approximate Start…

Comprehensive Guide to the CryCryptor Ransomware (Extension observed: .crycryptor) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The malware appends “.crycryptor” to the base filename without renaming the original file name. Example: Report_Q1.docx becomes Report_Q1.docx.crycryptor. Renaming Convention: – Files retain their original names; only the extra extension is added. – File…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .crybrazil Renaming Convention: Example: report.xlsm → report.xlsm.crybrazil These files are NOT moved to separate directories; the original extension and file name remain visible, making immediate detection more difficult. 2. Detection & Outbreak Timeline Approximate Start Date/Period: First samples submitted to public sandboxes and…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware family known as Cryakl originally added the literal suffix .cryakl (or uppercase .CRYAKL) to every encrypted file and has since added secondary email-based extensions that look similar, e.g.: .lockcryakl@[attacker-domain].com The root “cryakl” string remains, so any of the above variants are…

Ransomware Resource – CRY9 (.cry9) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The exact extension appended to every encrypted file is .cry9 Renaming Convention: Original filename → [original_name].[original_extension].cry9 Example: QuarterlyReport.xlsx becomes QuarterlyReport.xlsx.cry9 No numeric ID, victim ID, or e-mail addresses are inserted; the double-extension pattern alone is the hallmark. 2.…