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Ransom.HTML.CRYLOCK.A.note

April 13, 2020
 Analysis by: Mohammed Malubay
 ALIASES:

Win32/Filecoder.EQ trojan(NOD32);

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware


This Ransomware may be dropped by other malware.

This is the Trend Micro detection for files that exhibit certain behaviors.

  TECHNICAL DETAILS

File Size:

7,340 bytes

File Type:

HTA

Memory Resident:

No

Initial Samples Received Date:

09 Apr 2020

Payload:

Displays message/message boxes

Arrival Details

This Ransomware may be dropped by the following malware:

  • Ransom.HTML.CRYLOCK

Other Details

This is the Trend Micro detection for:

  • Ransom notes dropped by Ransom.HTML.CRYLOCK malware family

It does the following:

  • It displays the following:
  • It displays the following after timer runs out:

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.794.04

FIRST VSAPI PATTERN DATE:

09 Apr 2020

VSAPI OPR PATTERN File:

15.795.00

VSAPI OPR PATTERN Date:

10 Apr 2020

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Scan your computer with your Trend Micro product to delete files detected as Ransom.HTML.CRYLOCK.A.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:


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