Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files are NOT re-named with a new suffix. The tell-tale marker is the ransom note that is dropped in every folder and on the desktop: filesaregone.txt. Encrypted files retain their original names and extensions (e.g., budget.xlsx stays budget.xlsx) but the file headers are…

Ransomware Brief: “filesareencrypted.*” (a.k.a. the “Files Are Encrypted” strain, no public family name) TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns Confirmed file extension appended: .files_are_encrypted (nothing after the dot – the string itself is the extension) Renaming convention: Original name and original extension are kept intact; “.files_are_encrypted” is simply concatenated to the very end.…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: …adds the literal suffix “.filerec” (lower-case, 7 bytes) to every encrypted file. Example: Invoice.xlsx → Invoice.xlsx.filerec Renaming Convention: The original file name and internal extension are kept intact; only “.filerec” is appended. No e-mail address, victim-ID, or random hex string is inserted into…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: fileiscryptedhard Renaming Convention: After encryption the file document.docx is transformed into document.docx.fileiscryptedhard. (No e-mail address, random bytes, or numeric ID are inserted – only the literal string is appended.) 2. Detection & Outbreak Timeline First public sighting: 1H-2023 (earliest submissions on ID-Ransomware and…

Ransomware Resource Sheet Variant identified by extension: .filegofprencrp TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns Confirmation of file extension: Every encrypted file receives a second, final extension “.filegofprencrp” (lower-case). Example: Budget2024.xlsx.filegofprencrp Renaming convention: No e-mail, campaign ID, or victim key is inserted; the original name is preserved and only the extra 14-character extension is…

Ransomware Resource Sheet: FILEENCRYPTED (keyword used as placeholder; replace with real extension) Technical Breakdown 1. File extension & renaming patterns Confirmation of file extension: The malware appends “.fileencrypted” (all lower-case, no space) to every file it touches (e.g., Annual_Report.xlsx.fileencrypted). Renaming convention: Original file name is kept intact; only “.fileencrypted” is appended after the original extension,…

File-extortion frequently appears under dozens of aliases, but a consistent marker used by a few low-volume “amateur” strains since 2020 is the literal suffix “.file0locked”. Because the literature on these variants is fragmented (usually just a user post plus a couple of sandbox reports), the write-up below aggregates every verifiable trait plus battle-tested containment tactics.…

It looks like the placeholder {{ $json.extension }} wasn’t replaced with the actual file extension you’re interested in (or you accidentally left the word “file” in place). Please provide the exact extension that the ransomware appends to encrypted files (for example, .ryk, .npsk, .coot, .mallox, etc.). Once I have that single piece of information, I…

Technical Breakdown: “FIASKO” Ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: .fiasko (lower case, appended to the original extension). Renaming Convention: Original: Annual_Report.xlsx Encrypted: Annual_Report.xlsx.fiasko Drops a plain-text ransom note named HOW_TO_RECOVER_FILES.txt (or !README_FIASKO!.txt) in every folder and on the desktop. 2. Detection & Outbreak Timeline Approximate Start Date: First uploaded to…

Ransomware Briefing – “.fhkf” (Last updated: 2024-05-21) TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns Extension appended: .fhkf (lower-case, four letters, no white-space). Renaming convention: Keeps the original filename and original extension, then simply appends .fhkf. Example: Budget2024.xlsx → Budget2024.xlsx.fhkf No e-mail address, no random hex string, no victim-ID inside the name (this helps distinguish…