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Ransom.Win32.FAKEGLOBE.JKPD

September 17, 2019
 Modified by: Arvin Roi Macaraeg
 ALIASES:

GenericRXGH-RE!B50028F2D1EF (McAfee); Ransom.Cryptolocker (Symantec); HEUR:Trojan.Win32.Generic (Kaspersky); Troj/Ransom-EVE (Sophos); Trojan.Win32.Generic!BT (Sunbelt)

 PLATFORM:

Windows

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

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, 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 drops files as ransom note.

  TECHNICAL DETAILS

File Size:

98,816 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

06 Sep 2019

Payload:

Displays message/message boxes, Encrypts files

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 copies of itself into the affected system:

  • %appdatalocal%\{malware file name}.exe

It drops the following files:

  • %Public%\61B2F63700F5F9FC7E82CEAF9D32B0BB72F603423ADD284B001BB4C89ECF6B5937BBEF8D
  • %User Temp%\tmp{random characters}.tmp.bat

(Note: %Public% is the folder that serves as a repository of files or folders common to all users, which is usually C:\Users\Public in Windows Vista, 7, and 8.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Autostart Technique

This Ransomware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
BrowserUpdateCheck = "%appdatalocal%\{malware file name}.exe"

Other Details

This Ransomware does the following:

  • This Ransomware avoids encrypting files with the following strings in their file path/ file name:
    • Windows Microsoft
    • Microsoft Help
    • Windows App Certification Kit
    • Windows Defender
    • ESET
    • COMODO
    • Windows NT
    • Windows Kits
    • Windows Mail
    • Windows Media Player
    • Windows Multimedia Platform
    • Windows Phone Kits
    • Windows Phone Silverlight Kits
    • Windows Photo Viewer
    • Windows Portable Devices
    • Windows Sidebar
    • WindowsPowerShell
    • NVIDIA Corporation
    • Microsoft.NET
    • Internet Explorer
    • Kaspersky Lab
    • McAfee
    • Avira
    • spytech software
    • sysconfig
    • Avast
    • Dr.Web
    • Symantec
    • Symantec_Client_Security
    • system volume information
    • AVG
    • Microsoft Shared
    • Common Files
    • OutlookExpress
    • Movie Maker
    • Chrome
    • Mozilla Firefox
    • Opera
    • YandexBrowser
    • ntldr
    • Wsus
    • ProgramData
  • It checks if the following files containing these extensions are found and avoids encryption if they do:
    • .er
    • .4db
    • .4dd
    • .4d
    • .4mp
    • .Erenahen
    • .How_to_open_files.html
    • .How_to_open_files.html
    • .Erenahen
    • .Erenahen
    • .ciphered
    • .tabufa
    • .saveyoudata
    • .saveyourdata
    • .hotprice8
    • .666decrypt666
    • .libertoned
    • .unlockassistant
    • .shelbyboom
    • .AsabHadare
    • .helpinc
    • .Coockish
    • .rescuerr
    • .supporthelpgood
    • .decrypt019
    • .Saveyourdata
    • .decrypt2019
    • .helprobot
    • .telcomsupp2351
    • .Gamgamga

Ransomware Routine

This Ransomware renames encrypted files using the following names:

  • {encrypted file}.Erenahen

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

  • {encrypted folder}\How_to_open_files.html

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.348.04

FIRST VSAPI PATTERN DATE:

06 Sep 2019

VSAPI OPR PATTERN File:

15.349.00

VSAPI OPR PATTERN Date:

07 Sep 2019

Step 1

Trend Micro products with the XGen technology detect this malware as

[ Learn More ]
 
  • Troj.Win32.TRX.XXPE50FFF031

Step 2

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 3

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 4

Restart in Safe Mode

[ Learn More ]

Step 5

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • BrowserUpdateCheck = %appdatalocal%\{malware file name}.exe

Step 6

Search and delete these files

[ 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. DATA_GENERIC
  • Once located, select the file then press SHIFT+DELETE to delete it.
  • Repeat the said steps for all files listed.
    *Note: Read the following Microsoft page if these steps do not work on Windows 7 and Server 2008 (R2).

    • Step 7

    Restart in normal mode and scan your computer with your Trend Micro product for files detected as Ransom.Win32.FAKEGLOBE.JKPD. 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 8

    Restore encrypted files from backup.


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