MSIL/Arcdoor [Threat Name] go to Threat
MSIL/Arcdoor.AH [Threat Variant Name]
| Category | trojan,worm |
| Size | 40960 B |
| Aliases | Trojan.Win32.Jorik.Arcdoor.jt (Kaspersky) |
| Backdoor:MSIL/Pontoeb.B (Microsoft) | |
| W32.SillyFDC (Symantec) |
Short description
The trojan serves as a backdoor. It can be controlled remotely.
Installation
When executed the trojan copies itself in the following locations:
- %appdata%\audiohd.exe
- %system%\WUDHosts.exe
In order to be executed on every system start, the trojan sets the following Registry entries:
- [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
- "Windows Audio Driver" = "%appdata%\audiohd.exe"
- "Windows-Network Component" = "%system%\WUDHosts.exe"
- [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
- "Windows Audio Driver" = "%appdata%\audiohd.exe"
- "Windows-Network Component" = "%system%\WUDHosts.exe"
The following Registry entry is set:
- [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]
- "Hidden" = 2
The trojan executes the following command:
- cmd.exe /C netsh firewall add allowedprogram %malwarefilepath% http-bot ENABLE
The performed command creates an exception in the Windows Firewall.
Information stealing
The trojan collects the following information:
- operating system version
- computer name
- user name
The trojan attempts to send gathered information to a remote machine.
Other information
The trojan serves as a backdoor. It can be controlled remotely.
The trojan acquires data and commands from a remote computer or the Internet.
The trojan contains an URL address. The HTTP protocol is used.
It can execute the following operations:
- download files from a remote computer and/or the Internet
- run executable files
- update itself to a newer version
- uninstall itself
- open a specific URL address