MSIL/Agent.AV [Threat Name] go to Threat

MSIL/Agent.AV [Threat Variant Name]

Category worm
Size 22016 B
Short description

MSIL/Agent.AV is a worm which tries to download other malware from the Internet.

Installation

When executed the worm copies itself in the following locations:

  • %appdata%\­lWyWpByYuAxScAkJuTlKxHbLuAcJlCsJpJoXiYlFgHnPaAaQgVqNkXuUyPhLsWlCoNmKbWcB.exe
  • %userprofile%\­Start Menu\­Programsexplorer.exe
  • C:\­%malwarefilename%

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

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "Windows Defender" = "%appdata%\­lWyWpByYuAxScAkJuTlKxHbLuAcJlCsJpJoXiYlFgHnPaAaQgVqNkXuUyPhLsWlCoNmKbWcB.exe"
Spreading on removable media

The worm copies itself into the root folders of removable drives using the following name:

  • JlAvZ.exe

The file(s) may have the System (S) and Hidden (H) attributes present in attempt to hide the file in Windows Explorer.


The worm creates the following files:

  • %variable%.lnk

A string with variable content is used instead of %variable% .


The name of the file may be based on the name of an existing file or folder.


The file is a shortcut to a malicious file.

Other information

The worm contains an URL address.


It tries to download a file from the address.


The file is stored in the following location:

  • %temp%\­uLcVeAoWkMuUiN.exe

The file is then executed. The HTTP protocol is used.


The worm may display the following message:

  • This Program Has Known Compaitablility Issues In Sandboxie. Please Run It Normally. The Application Will Now Close. Thankyou.

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