Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware appends the exact extension “.destroy.executioner” to every encrypted file (e.g., Report.docx.destroy.executioner). Renaming Convention: The malware first renames the file’s base name by scrambling high-entropy hexadecimal strings (24 characters) separated by “#”; Immediately appends “.destroy.executioner”; Creates a small helper file in the…

Ransomware Profile: DESTROY* Alternative names: DestroyRansom, DCRYPT, X-File Last major update: Q2-2024 Technical Breakdown 1. File Extension & Renaming Patterns Exact extension: .destroy (sometimes appears as .destroy[VICTIM-ID]) Renaming Convention: Pre-pend + exact suffix pattern picture.jpg → [RECOVERY-ID-XXXXX]_[VICTIM-ID]_.destroy The double underscore and optional victim-ID are distinctive. Locked “dummy” folders (RESTOREFILES.txt, README-FOR-DECRYPT.html) are dropped side-by-side with each…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: The ransomware destr appends “.destr” to every encrypted file once the payload finishes processing. Renaming Convention: Original filename > original.name.destr Example: Report.xlsx → Report.xlsx.destr In most samples the file name, extension, and directory structure are preserved—the only change is the extra .destr suffix…

Technical Breakdown: DESOLATED Ransomware 1. File Extension & Renaming Patterns Confirmation of File Extension: .desolated Renaming Convention: • Standard pattern: <original_name>.<original_extension>.<email>.desolated • Example: [email protected] • Email address varies (latest samples use [email protected], older ones used [email protected], [email protected], [email protected]). • Directory trees are left intact; files at every depth are altered, giving victims an immediate visual…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: Files encrypted by DesktopOSiris (a.k.a. Osiris) receive the extension .osiris (written in lower-case, never highlighted by parentheses or brackets). Renaming Convention: Each file is renamed according to the pattern OriginalFileName.[OriginalExtension].[unique-6-char-ID]-[unique-6-char-ID].[attacker-e-mail#1].osiris Example: [email protected] 2. Detection & Outbreak Timeline Approximate Start Date/Period: Campaigns delivering “.osiris”…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: .derzko – every file that is successfully encrypted by this strain is appended with exactly this six-character extension. Renaming Convention: Victims see: ├── C:\Users\Alice\Documents\invoice.docx.derzko ├── C:\Users\Alice\Pictures\Summer2023.jpg.derzko └── \\HR-DATA\Payroll\q4salaries.xlsx.derzko The original file name and its extension are preserved one layer deeper: the ransomware first…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: DERPSuS Ransomware appends the literal suffix “.derp” to every encrypted file. Example: Project_Q4.xlsx becomes Project_Q4.xlsx.derp. Renaming Convention: In addition to the “.derp” extension, many samples drop a random 8-byte ASCII string right before the extension (e.g., README.pdf → README.pdf.9a7c1bd3.derp). On later iterations, victims…

Comprehensive Resource on derohe Ransomware Technical Breakdown 1. File Extension & Renaming Patterns Confirmation of File Extension: .derohe Renaming Convention: derohe prepends the original file name with the victim ID (eight lowercase hexadecimal characters) and appends .derohe. Example: Original: Q3-Budget.xlsx After encryption: e7f4a1c3_Q3-Budget.xlsx.derohe 2. Detection & Outbreak Timeline Approximate Start Date/Period: First public sightings were…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: derialock appends the exact string .deria to every file it encrypts. Renaming Convention: Encrypted files retain their original base names and their native extension, then simply receive the suffix .deria (e.g., Quarterly_Report.xlsx.deria, EMP_DB_Backup.sql.deria). Unlike other families, it does not prepend an e-mail address…

Technical Breakdown: 1. File Extension & Renaming Patterns Confirmation of File Extension: deria Renaming Convention: Files are kept in their original folder but receive an additional suffix of .deria (e.g., budget-Q1.xlsx → budget-Q1.xlsx.deria). The malware does not change the base filename or apply a victim-specific prefix/ID. 2. Detection & Outbreak Timeline Approximate Start Date/Period: First…