Analysis by: Ryan Gardo
ALIASES:

Ransom.TechSupportScam (Malwarebytes)

 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, Downloaded from the Internet

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

  TECHNICAL DETAILS

File Size: 30,720 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 26 Nov 2016
Payload: Displays message/message boxes, Locks files, Terminates processes

Arrival Details

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

Process Termination

This Trojan terminates the following processes if found running in the affected system's memory:

  • taskmgr
  • explorer

NOTES:

This ransomware shows the following image upon execution:

It also shows the following message box when the correct unlock code is entered:

In which the correct unlock code is: 01548764GHEZG784

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 12.924.05
FIRST VSAPI PATTERN DATE: 27 Nov 2016
VSAPI OPR PATTERN File: 12.925.00
VSAPI OPR PATTERN Date: 28 Nov 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

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

Restart in Safe Mode

[ Learn More ]

Step 4

Scan your computer with your Trend Micro product to delete files detected as RANSOM_FAKELOCK.M. 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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