errorwindows Ransomware – Community Resource Technical Breakdown 1. File Extension & Renaming Patterns Confirmed extension: .errorwindows (lower-case, appended to the original name, no additional marker between base-name and extension). Renaming convention: original_name.docx → original_name.docx.errorwindows (i.e., flat, single-level suffix; no e-mail address or ID inserted). Notes: Does NOT touch Windows system files (keeps the machine bootable…

Below is a community-oriented dossier on the ransomware whose calling-card is the appearance of the extension “.error”. Because the malware itself is not new, the guidance is based on the best publicly-verified intelligence available up to June 2024. If newer data emerges, treat this as a living document and refresh the IOCs, decryptor links, and…

Technical Breakdown – erqw Ransomware (STOP/Djvu sub-strain) 1. File Extension & Renaming Patterns Confirmed extension added: .erqw Classic renaming convention: OriginalName.jpg → OriginalName.jpg.erqw (no e-mail, no ID-string in the filename; the victim’s “personal ID” is written into the ransom note only) 2. Detection & Outbreak Timeline First public submissions to ID-ransomware & malware repositories: 25-27…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: Files encrypted by the “erop” ransomware are unequivocally re-suffixed with the lowercase four-letter extension .erop Example: Quarterly_Report.xlsx ➔ Quarterly_Report.xlsx.erop Renaming Convention: – The original file name and every internal extension are preserved; the malware only appends .erop to the right-most position. – Files…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .eris! (note the exclamation mark). Renaming Convention: – Original filename → <original_name>.eris! – Example: Contract.docx becomes Contract.docx.eris! – No e-mail, random string, or victim-ID is inserted—just the single suffix. 2. Detection & Outbreak Timeline Approximate Start Date/Period: – First submitted to ID-Ransomware and…

Ransomware Deep-Dive: “eris” (a.k.a. Eris Ransomware, “.eris” strain) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: – “.eris” is appended to every encrypted file. Example: Quarterly_Report.xlsx → Quarterly_Report.xlsx.eris Renaming Convention: – No e-mail/ID string is inserted; only the original file name followed by the single secondary extension “.eris”. – Files are…

Technical Breakdown 1. File Extension & Renaming Patterns Exact Extension Used: Files are re-written with the single extension “.erif”. Original document.docx → document.docx.erif Original spreadsheet.xls → spreadsheet.xls.erif Naming Convention: No e-mail address or ransom ID is inserted into the file name; only the literal string “.erif” is appended. 2. Detection & Outbreak Timeline First public…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmed Extension: .erica (appended after the original extension, e.g., Document.docx.erica) Renaming Convention: Keeps original file name intact, simply concatenating the new .erica extension Drops the ransom note as README_TO_RESTORE_FILES.txt or README_!!!recover_me!!!.txt in every folder it touches 2. Detection & Outbreak Timeline First Public Sightings: 25-26 May 2021…

Erenahen Ransomware – Community Briefing Technical Breakdown 1. File Extension & Renaming Patterns Confirmed extension: .erenahen (lower-case, no white-space) Renaming convention: original_name.ext → original_name.ext.erenahen The ransomware keeps the original file name and original extension in plain view so that victims can still recognise what was encrypted. 2. Detection & Outbreak Timeline First public samples: 14–15…

Erebus Ransomware – Community Resource Sheet Extension seen in the wild: .erebus Technical Breakdown 1. File Extension & Renaming Patterns Confirmed extension: .erebus (lower-case) Typical rename pattern: [original_name].[original_extension].erebus Example: QuarterlyReport.xlsx → QuarterlyReport.xlsx.erebus 2. Detection & Outbreak Timeline First public submission: February 2017 (South-Korea-based victim sample on ID-Ransomware / MalwareHunterTeam) High-profile campaign: May–June 2017 targeting South…