MSIL/LockScreen [Threat Name] go to Threat
MSIL/LockScreen.A [Threat Variant Name]
| Category | trojan |
| Size | 65536 B |
Short description
MSIL/LockScreen.A is a trojan that blocks access to the Windows operating system. To regain access to the operating system the user is asked to send an SMS message to a specified telephone number in exchange for a password. When the correct password is entered the trojan is deactivated.
Installation
The trojan is probably a part of other malware.
The trojan does not create any copies of itself.
The trojan may create copies of the following files (source, destination):
- c:\windows\down\driver.exe, c:\windows\graphic\driver.exe
The following files are deleted:
- c:\windows\down\driver.exe
In order to be executed on every system start, the trojan sets the following Registry entry:
- [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
- "graphic" = "c:\windows\graphic\driver.exe"
Other information
The trojan displays the following dialog box:
When the correct password is entered the trojan is deactivated.
The password to regain access to the operating system is one of the following:
- kWPi
Some examples follow.
The trojan creates the following files:
- c:\windows\graphic\startdvr.dll
- c:\windows\graphic\starttim.dll
Trojan requires the Microsoft .NET Framework to run.