TSPY_KEYLOG.NTS
Infostealer.Lemir.Gen (Symantec), Backdoor:Win32/Bifrose (Microsoft), Artemis!0E783C9EA50C (McAfee), Win32.Worm.Regin.D (BitDefender)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Spyware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This spyware may arrive bundled with malware packages as a malware component. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It logs a user's keystrokes to steal information.
It sends gathered information to a predetermined email address using its own Simple Mail Transfer Protocol (SMTP) engine.
TECHNICAL DETAILS
473,088 bytes
EXE
Yes
08 Sep 2015
Logs keystrokes, Steals information
Arrival Details
This spyware may arrive bundled with malware packages as a malware component.
It 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 spyware drops the following copies of itself into the affected system:
- %System%\ntsvc.exe
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
NetService = "%System%\ntsvc.exe"
Process Termination
This spyware terminates the following processes if found running in the affected system's memory:
- QQ.exe
- RavMon.exe
Dropping Routine
This spyware drops the following file(s), which it uses for its keylogging routine:
- {random path}\{random filename}.exe
Information Theft
This spyware logs a user's keystrokes to steal information.
Stolen Information
This spyware sends gathered information to a predetermined email address using its own Simple Mail Transfer Protocol (SMTP) engine.
SOLUTION
9.200
11.910.03
10 Sep 2015
11.911.00
11 Sep 2015
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 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
Restart in Safe Mode
Step 4
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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
- NetService = %System%\ntsvc.exe
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_KEYLOG.NTS. 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.
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