Analysis by: Cris Nowell Pantanilla
ALIASES:

Trojan-Ransom.Win32.Locky.afn (Kaspersky), Ransomware-Locky!enc (McAfee)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet

This is the Trend Micro detection for encrypted malicious ransomware that are downloaded and executed by exploit kits or other malware. Once this malware is decrypted by its component file, it will be executed. As a result, the behavior of the malware is exhibited on the affected machine.

This Trojan may arrive bundled with malware packages as a malware component. It may be downloaded by other malware/grayware/spyware from remote sites.

  TECHNICAL DETAILS

File Size: Varies
File Type: None
Memory Resident: No
Initial Samples Received Date: 01 Jul 2016

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

It may be downloaded by other malware/grayware/spyware from remote sites.

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 12.624.06
FIRST VSAPI PATTERN DATE: 01 Jul 2016
VSAPI OPR PATTERN File: 12.625.00
VSAPI OPR PATTERN Date: 01 Jul 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

Scan your computer with your Trend Micro product to delete files detected as RANSOM_LOCKYENC.SM. 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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