Win32/Agent.XRR [Threat Name] go to Threat
Win32/Agent.XRR [Threat Variant Name]
| Category | trojan |
| Size | 64512 B |
| Detection created | Dec 05, 2015 |
| Detection database version | 12677 |
| Aliases | Trojan.Inject2.57861 (Dr.Web) |
| Trojan:Win32/Ruandmel.A!bit (Microsoft) |
Short description
The trojan serves as a backdoor. It can be controlled remotely.
Installation
When executed, the trojan copies itself into the following location:
- %appdata%\Win Defender.exe
In order to be executed on every system start, the trojan sets the following Registry entry:
- [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
- "Windows Defender " = "%appdata%\Win Defender.exe"
After the installation is complete, the trojan deletes the original executable file.
The trojan terminates its execution if it detects that it's running in a specific virtual environment.
The trojan launches the following processes:
- explorer.exe
The trojan creates and runs a new thread with its own code within these running processes.
The trojan can create and run a new thread with its own program code within the following processes:
- explorer.exe
- wininit.exe
- csrss.exe
- lsass.exe
Information stealing
Win32/Agent.XRR is a trojan that steals sensitive information.
The trojan collects the following information:
- CPU information
- operating system version
- information about the operating system and system settings
- user name
- computer name
- the path to specific folders
- BIOS version
- current screen resolution
- amount of operating memory
- installed antivirus software
- Microsoft .NET framework version
- screenshots
The trojan attempts to send gathered information to a remote machine.
Other information
The trojan acquires data and commands from a remote computer or the Internet.
The trojan contains a list of (2) URLs. The HTTP protocol is used in the communication.
It can execute the following operations:
- download files from a remote computer and/or the Internet
- run executable files
- uninstall itself
- send gathered information
The trojan hides its presence in the system.
The trojan hooks the following Windows APIs:
- NtQueryDirectoryFile (ntdll.dll)
- NtCreateFile (ntdll.dll)