Ransom.Win32.CRYPTXXX.SMYXDLF.note

January 15, 2024

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 Analysis by: John Rainier Navato

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 ALIASES:

Win32/Filecoder.CryptProjectXXX trojan (NOD32)

 PLATFORM:

Windows

 OVERALL RISK RATING:

 DAMAGE POTENTIAL:

 DISTRIBUTION POTENTIAL:

 REPORTED INFECTION:

 INFORMATION EXPOSURE:

• 
  Threat Type: Others
• 
  Destructiveness: No
• 
  Encrypted:
• 
  In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Others arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be dropped by other malware.

  TECHNICAL DETAILS

File Size:

14,193 bytes

File Type:

HTML, HTM

Memory Resident:

No

Initial Samples Received Date:

12 Jan 2024

Arrival Details

This Others arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be dropped by the following malware:

• CRYPTXXX ransomware family

Other Details

This Others does the following:

• This is the Trend Micro detection for:
  • Ransom note dropped by CRYPTXXX malware family

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.930.07

FIRST VSAPI PATTERN DATE:

09 Jan 2024

VSAPI OPR PATTERN File:

18.931.00

VSAPI OPR PATTERN Date:

10 Jan 2024

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as Ransom.Win32.CRYPTXXX.SMYXDLF.note. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:

• Home and Home Office Support
• Business Support

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