HackTool.Win32.Nbtscan.AC
Windows
Threat Type: Hacking Tool
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Hacking Tool 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
3,702,965 bytes
EXE
Yes
17 Apr 2020
Arrival Details
This Hacking Tool 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 Hacking Tool adds the following processes:
- "{malware file path and name}"
It creates the following folders:
- %User Temp%\_MEI29322
(Note: %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).)
Dropping Routine
This Hacking Tool drops the following files:
- %User Temp%\_MEI29322\unicodedata.pyd
- %User Temp%\_MEI29322\bz2.pyd
- %User Temp%\_MEI29322\msvcr90.dll
- %User Temp%\_MEI29322\select.pyd
- %User Temp%\_MEI29322\_socket.pyd
- %User Temp%\_MEI29322\Microsoft.VC90.CRT.manifest
- %User Temp%\_MEI29322\pnbtscan.exe.manifest
- %User Temp%\_MEI29322\_ssl.pyd
- %User Temp%\_MEI29322\msvcp90.dll
- %User Temp%\_MEI29322\_hashlib.pyd
- %User Temp%\_MEI29322\msvcm90.dll
- %User Temp%\_MEI29322\python27.dll
(Note: %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).)
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
Identify and terminate files detected as HackTool.Win32.Nbtscan.AC
- 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 3
Search and delete these components
- %User Temp%\_MEI29322\unicodedata.pyd
- %User Temp%\_MEI29322\bz2.pyd
- %User Temp%\_MEI29322\msvcr90.dll
- %User Temp%\_MEI29322\select.pyd
- %User Temp%\_MEI29322\_socket.pyd
- %User Temp%\_MEI29322\Microsoft.VC90.CRT.manifest
- %User Temp%\_MEI29322\pnbtscan.exe.manifest
- %User Temp%\_MEI29322\_ssl.pyd
- %User Temp%\_MEI29322\msvcp90.dll
- %User Temp%\_MEI29322\_hashlib.pyd
- %User Temp%\_MEI29322\msvcm90.dll
- %User Temp%\_MEI29322\python27.dll
Step 4
Search and delete this folder
- %User Temp%\_MEI29322
Step 5
Scan your computer with your Trend Micro product to delete files detected as HackTool.Win32.Nbtscan.AC. 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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