Ransom.MSIL.PEWDIEPIE.THABAHAH
Trojan:Win32/Occamy.C (Microsoft); Trojan-Ransom.ShellLocker (Ikarus)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
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 encrypts files found in specific folders.
TECHNICAL DETAILS
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:
- %AppDataLocal%\TempTqykUo3.png
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local on Windows Vista, 7, and 8.)
It drops the following copies of itself into the affected system:
- %User Startup%\svchost.exe
(Note: %User Startup% is the current user's Startup folder, which is usually C:\Windows\Profiles\{user name}\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu\Programs\Startup on Windows NT, C:\Documents and Settings\{User name}\Start Menu\Programs\Startup on Windows XP, or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, and 8.)
Other System Modifications
This Ransomware modifies the following registry entries:
HKEY_CURRENT_USER\Control Panel\Desktop
Wallpaper = C:\Users\dyituser_732\AppData\Local\TempTqykUo3.png
HKEY_CURRENT_USER\Control Panel\Desktop
Wallpaper = C:\Users\DYITUS~1\AppData\Local\Temp\BGInfo.bmp
Process Termination
This Ransomware terminates the following processes if found running in the affected system's memory:
- TaskManager
- cmd
- procexp
- procexp64x
- regedit
- CCleaner64
- msconfig
Other Details
This Ransomware does the following:
- Encrypts the following drive letters:
- Drive Letters A to Y
- Downloads a file from the following URL links:
- http://i.{BLOCKED}r.com/TqykUo3.png
- Disables the following Key Strokes:
- Ctrl +Esc
- Alt + Tab
- Alt + Esc
- It displays the Ransom Note asking the victim to subscribe by following the link : https://www.youtube.com/channel/UC-lHJZR3Gqxm24_Vd_AJ5Yw?sub_confirmation=1
Ransomware Routine
This Ransomware encrypts files found in the following folders:
- %User Profile%\Desktop
- %User Profile%\MyMusic
- %User Profile%\Personal
- %User Profile%\MyVideos
- %User Profile%\Contacts
- %User Profile%\Downloads
- %User Profile%\OneDrive
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista, 7, and 8.)
It appends the following extension to the file name of the encrypted files:
- {File Name}.PewDiePie
SOLUTION
Step 1
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 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
Restart in Safe Mode
Step 4
Restore this modified registry value
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\Control Panel\Desktop
- Wallpaper = "{User Preference}"
- Wallpaper = "{User Preference}"
Step 5
Search and delete these files
- %AppDataLocal%\TempTqykUo3.png
- %User Startup%\svchost.exe
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as Ransom.MSIL.PEWDIEPIE.THABAHAH. 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 7
Restore encrypted files from backup.
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