Ransomware Briefing – Extension “.eaijtp” (Compiled for system owners, DFIR teams, and the wider security community) Technical Breakdown 1. File Extension & Renaming Patterns Confirmed extension appended to every encrypted object: .eaijtp Renaming convention encountered in the wild: OriginalFileName.ext.[victim-ID].[attacker-mail].eaijtp Example: 2023-Report.docx → [email protected] (The victim-ID is a 6-8-byte hex string; the e-mail address is rotated…

eafe Ransomware – Community Defense Guide Technical Breakdown 1. File Extension & Renaming Patterns Confirmed extension: .eafe (always lower-case, 4 letters) Renaming convention: Original: Project.docx After encryption: Project.docx.id-<8-hex-chars>.[[email protected]].eafe Pattern seen in the wild: <original_name>.<original_ext>.id-XXXXXXXX.[attacker-e-mail].eafe The “id-” string is the victim UID generated from MAC address/UID hash. If the malware fails to reach its C2 it…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files are appended with the verbatim, lower-case suffix “.eaf”. Renaming Convention: Original filename → <original_name>.eaf (No e-mail address, UID, or random hex is inserted; only the extension is swapped/added). 2. Detection & Outbreak Timeline Approximate Start Date/Period: Samples bearing the “.eaf” extension were…

Ransomware Brief – “.eaaeee” extension (a STOP/Djvu offshoot) TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns Confirmed extension: .eaaeee Renaming convention: – Original file: report.xlsx → report.xlsx.eaaeee – Victim ID + attacker e-mail are also written into the filename if the “t1” or “t2” build is used, e.g.: report.xlsx.id[14A2F02C-2273].[[email protected]].eaaeee – Same 16-byte file marker is…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The current strain appends the verbatim 4-byte lower-case extension .e4m to every file it encrypts (e.g., Invoice.xlsx → Invoice.xlsx.e4m). A leading space (0x20) is sometimes inserted in the filename, so the file may visually appear as “Invoice.xlsx .e4m” in Explorer – useful for…

DZEN Ransomware – Community Resource Sheet (Last updated: 2024-05-XX) Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .dzen (lower-case, four characters, no space or second extension). Renaming Convention: Plain overwrite: invoice.docx → invoice.docx.dzen No e-mail or ID string is appended, which differentiates DZEN from many “big-brand” families. -Network shares are processed…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .dyna-crypt (lowercase, hyphenated, appended after the original extension). Renaming Convention: original_name.ext.[8_random_hex_chars].dyna-crypt Example: Q4-Report.xls → Q4-Report.xls.4a7f2b91.dyna-crypt 2. Detection & Outbreak Timeline Approximate Start Date/Period: First uploaded to VirusTotal on 2024-02-14; sharp uptick in ID-Ransomware submissions 2024-02-21 ↔ 2024-02-28 (Eastern-European finance & logistics sectors disproportionately…

Technical Brief: dyatel@qq_com Ransomware (Extension: .dyatel@qq_com) TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns Confirmed extension: .dyatel@qq_com (lower-case, 15 chars, includes the literal @ and underscore) Renaming convention: <original_file_name>.dyatel@qq_com – no second original extension is left. Dropping the marker file HOW TO DECRYPT FILES.txt into every folder is universal. Desktop wallpaper is overwritten with !dyatel@qq_com!.bmp.…

Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .dyaaghemy (exact, lower-case, appended AFTER the original extension – e.g. annual_report.xlsx.dyaaghemy) Renaming Convention: Original filename is preserved; only the additional “.dyaaghemy” suffix is added after the last dot. Creates a single-line ransom note “!HOWRECOVERYFILES!.txt” in every folder touched. Deck-top wallpaper is set to…

Ransomware Technical Dossier Variant identified by extension: .dy8wud TECHNICAL BREAKDOWN 1. File Extension & Renaming Patterns Confirmed extension: .dy8wud (lower-case, 6 chars, no second extension). Typical renaming convention: original_name.ext.[victim_ID].dy8wud Example: Project_Q3.xlsx → Project_Q3.xlsx.7D4C91EB.dy8wud The victim_ID is an 8-byte hex string generated from the first 4 bytes of the MD5 hash of the victim’s SID +…