BKDR_PLEAD.ZTCK-A
Windows
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.
It uses icons similar to those of legitimate applications to entice a user to click them.
TECHNICAL DETAILS
462,848 bytes
EXE
27 Nov 2015
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 copies of itself into the affected system:
- %Application Data%\Microsoft\Windows\Themes\nvidia.exe
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Autostart Technique
This backdoor adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
NVIDIA Corporation = %Application Data%\Microsoft\Windows\Themes\nvidia.exe
Propagation
This backdoor uses icons similar to those of legitimate applications to entice a user to click them.
Other Details
This backdoor connects to the following possibly malicious URL:
- http://{BLOCKED}y.serverpit.com:443/Pages/2775329865.asp