Ransom_LOCKYENC.DLDVFS

October 10, 2016
 Analysis by: Pearl Charlaine Espejo
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware

This Trojan may be downloaded by other malware/grayware from remote sites.

It does not have any propagation routine.

It requires its main component to successfully perform its intended routine. This is the Trend Micro detection for files that exhibit certain behaviors.

  TECHNICAL DETAILS

File Size:

181,252 bytes

File Type:

None

Memory Resident:

No

Initial Samples Received Date:

04 Oct 2016

Arrival Details

This Trojan may be downloaded by the following malware/grayware from remote sites:

  • JS_NEMUCOD.DLDVFS

Propagation

This Trojan does not have any propagation routine.

Other Details

This Trojan requires its main component to successfully perform its intended routine.

This is the Trend Micro detection for:

  • An encrypted Ransom_LOCKY.DLDVFS.
  • Requires to be decrypted by its main component in order to perform its malicious backdoor routines.
  • Functions as Ransom_LOCKY.DLDVFS after it is decrypted and loaded by its main loader.

NOTES:

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.8

FIRST VSAPI PATTERN FILE:

12.816.08

FIRST VSAPI PATTERN DATE:

04 Oct 2016

VSAPI OPR PATTERN File:

12.817.00

VSAPI OPR PATTERN Date:

05 Oct 2016

Step 1

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

Step 2

Remove malware/grayware files that dropped/downloaded Ransom_LOCKYENC.DLDVFS. (Note: Please skip this step if the threats listed below have already been removed.)

     
    • JS_NEMUCOD.DLDVFS

Step 3

Scan your computer with your Trend Micro product to delete files detected as Ransom_LOCKYENC.DLDVFS. 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 this Knowledge Base page for more information.


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