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Ransom.Win32.GANDCRAB.SMILC

May 09, 2019
 PLATFORM:

Windows

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

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

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

It drops files as ransom note.

  TECHNICAL DETAILS

File Size:

95,232 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

09 May 2019

Arrival Details

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

Installation

This Ransomware drops the following files:

  • {Encrypted Directory}\{Random Characters}.lock

It adds the following processes:

  • cmd.exe /c vssadmin delete shadows /all /quiet

Other Details

This Ransomware connects to the following possibly malicious URL:

  • www.{BLOCKED}orp.link

Ransomware Routine

This Ransomware appends the following extension to the file name of the encrypted files:

  • .{Random Characters}

It drops the following file(s) as ransom note:

  • {Encrypted Folder}\{Random}-MANUAL.txt

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.912.05

FIRST VSAPI PATTERN DATE:

01 Apr 2019

VSAPI OPR PATTERN File:

14.913.00

VSAPI OPR PATTERN Date:

02 Apr 2019

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

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.

Step 4

Scan your computer with your Trend Micro product to delete files detected as Ransom.Win32.GANDCRAB.SMILC. 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:

Step 5

Restore encrypted files from backup.


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