Win32/Regil [Threat Name] go to Threat

Win32/Regil.BC [Threat Variant Name]

Category trojan
Size 170496 B
Aliases Trojan.Win32.Fsysna.cbvd (Kaspersky)
Short description

Win32/Regil.BC installs a backdoor that can be controlled remotely.


When executed, the trojan copies itself into the following location:

  • %localappdata%\­VirtualStore\­mxtswkc.exe

The trojan creates the following file:

  • %localappdata%\­VirtualStore\­iexplore.exe (93184 B)

In order to be executed on every system start, the trojan sets the following Registry entry:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "cftvcn" = "%localappdata%\­VirtualStore\­mxtswkc.exe"
Other information

The trojan contains the program code of the following malware:

  • Win32/Regil.AZ

The trojan executes the following files:

  • %localappdata%\­VirtualStore\­iexplore.exe

The trojan creates and runs a new thread with its own code within these running processes.

The malware configuration is passed as command line parameters when the malware executable is launched.

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