Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware appends [email protected] to every encrypted file. Example: Budget_2024.xlsx becomes [email protected]. Renaming Convention: Original filename + original extension + fixed string [email protected] (no ransom-note ID, no hexadecimal extension, no appended timestamp). Indicators are the dual “@mail.com” and “.b007” tokens. 2. Detection &…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: [[.colambia]] All encrypted user files receive this exact lower-case extension appended after the original extension—e.g., Report_Q3.xlsx becomes Report_Q3.xlsx.colambia. Renaming Convention: The malware creates a 32-character hexadecimal chunk using the victim’s machine SID and appends “.colambia”. The renamed structure is therefore: BaseFileName.OriginalExtension.colambia 2. Detection…

Ransomware Resource: COKA (.coka) Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .coka Renaming Convention: – Each affected file is appended with the lowercase extension .coka (e.g., report.xlsx → report.xlsx.coka). – No preceding markers, random IDs, or email contacts are added; the original filename and path stay otherwise intact. 2. Detection…

Technical Breakdown – “CoinVault” ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: All encrypted files are given the literal suffix “.coinvault” (e.g., Report_Q4.xlsx.coinvault) – this string is appended; the original extension is preserved in front of it. Renaming Convention: Files remain in their original folder/drive structure. Enumeration happens from the local drives…

Technical Breakdown: COIN LOCKER ransomware (.coin.locker.txt) 1. File Extension & Renaming Patterns Confirmation of File Extension: Files are appended with the double extension .coin.locker.txt (the final “.txt” causes Windows to interpret the file as plain text, which is leveraged by the ransom note auto-display mechanism). Renaming Convention: Encrypted files retain their original base name and…

Technical Breakdown – “Coin Locker” (.coin) 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware consistently appends .coin to every encrypted file. Example: Project_Q2_budget.xlsx → Project_Q2_budget.xlsx.coin Renaming Convention: – Encrypted folders remain in their original tree structure; only the leaf filename is altered. – Long directory paths are NOT truncated or randomized,…

COIN Ransomware Threat Intelligence Report Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .coin (lower-case, without a leading dot in most ransom notes) Renaming Convention: Original file Document.docx becomes Document.docx.coin. In some older samples an additional hexadecimal ID is appended (Document.docx.coin.[A-F0-9]{8}), but this generator is inconsistent across variants—always expect at least…

Coharos Ransomware – Complete Community Resource Guide Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: The exact file extension appended by Coharos is .coharos (lowercase). Renaming Convention: Original files are renamed following the pattern: original_filename.{original extension}.coharos For example, 2024_financials.xlsx becomes 2024_financials.xlsx.coharos. 2. Detection & Outbreak Timeline Approximate Start Date/Period: Coharos was…

Technical Breakdown – Ransomware Identified by the .coffee Extension 1. File Extension & Renaming Patterns Confirmation of File Extension: All encrypted files receive a secondary extension of .coffee appended after the original extension, e.g. Quarterly_Report.xlsx.coffee. Renaming Convention: Encryption is NOT performed in–place. Instead, every file is copied into a new encrypted object with an added…

Community Threat Brief: OVGMA Ransomware (“.ovgm” variant – [email protected]) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .ovgm – placed after the original file name and appended by the string [email protected] Renaming Convention: original_name.ext [[ [email protected] ]].ovgm (Example: 2023-budget.xlsx [[ [email protected] ]].ovgm) 2. Detection & Outbreak Timeline First Public Sightings: Late…