Backdoor.Win32.NETWIRED.FBK
Trojan:Win32/AutoInj!MTB (Microsoft); Trojan-AitInject.aq (NAI)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Backdoor 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
1,713,664 bytes
EXE
Yes
24 Mar 2020
Arrival Details
This Backdoor 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 Backdoor drops the following files:
- %User Profile%\bootcfg\bootcfg.vbs
- %Common Startup%\bootcfg.url
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Common Startup% is the startup folder for all users, which is usually C:\Documents and Settings\All Users\Start Menu\Programs\Startup on Windows 2000, XP, and Server 2003, or C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup on Windows Vista, 7, and 8.)
It drops the following copies of itself into the affected system:
- %User Profile%\bootcfg\bitsigd.exe
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other System Modifications
This Backdoor adds the following registry entries:
HKEY_CURRENT_USER\Software\NetWire
HostId = 2020-Clienst
HKEY_CURRENT_USER\Software\NetWire
Install Date = {date of execution}
Other Details
This Backdoor adds the following registry keys:
HKEY_CURRENT_USER\Software\NetWire
It connects to the following possibly malicious URL:
- http://ihracat.{BLOCKED}e.com
SOLUTION
9.850
15.762.06
24 Mar 2020
15.763.00
25 Mar 2020
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
Identify and terminate files detected as Backdoor.Win32.NETWIRED.FBK
- 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
- NetWire
Step 5
Search and delete this file
- %User Profile%\bootcfg\bootcfg.vbs
- %Common Startup%\bootcfg.url
- %User Profile%\bootcfg\bitsigd.exe
Step 6
Scan your computer with your Trend Micro product to delete files detected as Backdoor.Win32.NETWIRED.FBK. 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:
Did this description help? Tell us how we did.