Trojan.X97M.EMOTET
Windows
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Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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
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.
Installation
This Trojan drops the following files:
- %ProgramData%\{filename}
(Note: %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.)
It adds the following processes:
- wscript %ProgramData%\{filename}
- powershell.exe -command {powershell command}
- %System%\cmd.exe" /c start /B %Windows%\syswow64\regsvr32.exe /s %ProgramData%\{filename}
- cmd /c ""%ProgramData%\{filename}" "
- powershell -enc {base64 encoded command}
- "%System%\cmd.exe" /c start /B %Windows%\syswow64\rundll32.exe %ProgramData%\{filename},{DLL Exported Function}
- wscript %ProgramData%\{filename}
(Note: %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Download Routine
This Trojan saves the files it downloads using the following names:
- %ProgramData%\{filename}
(Note: %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.)
Other Details
This Trojan connects to the following possibly malicious URL:
- {Download URLs}
SOLUTION
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 these files
- %ProgramData%\{filename}
Step 4
Scan your computer with your Trend Micro product to delete files detected as Trojan.X97M.EMOTET. 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:
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