arrow_back
search
close

RANSOM_HIDDENTEARDIKKAT.A

April 14, 2017
 ALIASES:

Ransom:MSIL/Ryzerlo.A(Microsoft)

 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:

Downloaded from the Internet

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 connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

107,008 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

05 Apr 2017

Payload:

Connects to URLs/IPs, Encrypts files, Displays message/message boxes

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.

Other Details

This Ransomware connects to the following website to send and receive information:

  • http://localhost/veri.php?

It encrypts files with the following extensions:

  • .accdb
  • .asp
  • .aspx
  • .css
  • .doc
  • .docx
  • .htm
  • .html
  • .ico
  • .jpg
  • .js
  • .mdb
  • .mp3
  • .php
  • .png
  • .ppt
  • .pptx
  • .psd
  • .rar
  • .sql
  • .ttf
  • .txt
  • .xls
  • .xlsx
  • .xml
  • .zip

It renames encrypted files using the following names:

  • {original filename and extension}.sifreli

It does the following:

  • It encrypts files in the following directories:
    • %Desktop%
    • %Users%\Downloads
    • %Users%\Music
    • %Users%\Pictures
  • Displays the following after execution:

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.322.01

FIRST VSAPI PATTERN DATE:

05 Apr 2017

VSAPI OPR PATTERN File:

13.321.00

VSAPI OPR PATTERN Date:

06 Apr 2017

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

Scan your computer with your Trend Micro product to delete files detected as RANSOM_HIDDENTEARDIKKAT.A. 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.

Step 4

Restore encrypted files from backup.


Did this description help? Tell us how we did.