TrojanSpy.MSIL.AZORULT.V
Trojan:MSIL/BladaInjector!MTB (Microsoft); Trojan-FRAX!111E4CE1E61B (McAfee); HEUR:Trojan.MSIL.NetWire.gen (Kaspersky)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan Spy
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan Spy 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
1,114,624 bytes
EXE
Yes
18 Jan 2020
Arrival Details
This Trojan Spy 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 Spy adds the following processes:
- cmd.exe /C type nul > "{malware file path and name}:Zone.Identifier"
- cmd.exe /c copy "{malware file path and name}" "%User Startup%\anewaudiodg.exe"
- cmd.exe /c, "%User Startup%\anewaudiodg.exe"
- "%User Startup%\anewaudiodg.exe"
- cmd.exe /C type nul > "%User Startup%\anewaudiodg.exe:Zone.Identifier"
- %User Startup%\anewaudiodg.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 2003(32-bit), XP and 2000(32-bit), or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit), 10(64-bit).)
Autostart Technique
This Trojan Spy drops the following file(s) in the Windows User Startup folder to enable its automatic execution at every system startup:
- %User Startup%\anewaudiodg.exe:Zone.Identifier
- %User Startup%\anewaudiodg.lnk
(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 2003(32-bit), XP and 2000(32-bit), or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit), 10(64-bit).)
Other System Modifications
This Trojan Spy deletes the following files:
- %User Startup%\anewaudiodg.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 2003(32-bit), XP and 2000(32-bit), or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit), 10(64-bit).)
It adds the following registry keys:
HKEY_CURRENT_USER\SOFTWARE\NetWire
It adds the following registry entries:
HKEY_CURRENT_USER\Software\NetWire
HostId = "HostId-yaseyc"
HKEY_CURRENT_USER\Software\NetWire
Install Date = "2019-06-26 22:35:45"
Dropping Routine
This Trojan Spy drops the following files:
- {malware file path and name}:Zone.Identifier
- %User Startup%\anewaudiodg.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 2003(32-bit), XP and 2000(32-bit), or C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit), 10(64-bit).)
Other Details
This Trojan Spy connects to the following possibly malicious URL:
- http://halwachi50.{BLOCKED}apc.net
This report is generated via an automated analysis system.
SOLUTION
9.850
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
Restart in Safe Mode
Step 3
Identify and terminate files detected as TrojanSpy.MSIL.AZORULT.V
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Delete this registry key
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
- NetWire
Step 5
Delete this 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\Software\NetWire
- HostId = "HostId-yaseyc"
- In HKEY_CURRENT_USER\Software\NetWire
- Install Date = "2019-06-26 22:35:45"
Step 6
Search and delete these components
- {malware file path and name}:Zone.Identifier
- %User Startup%\anewaudiodg.exe
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TrojanSpy.MSIL.AZORULT.V. 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 this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %User Startup%\anewaudiodg.exe
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