Win32/TrojanDownloader.Wauchos [Threat Name] go to Threat
Win32/TrojanDownloader.Wauchos.AK [Threat Variant Name]
| Category | trojan |
| Size | 75776 B |
| Aliases | Backdoor.Win32.Androm.gxgn (Kaspersky) |
| Worm:Win32/Gamarue.AR (Microsoft) | |
| Trojan.MulDrop5.53534 (Dr.Web) |
Short description
Win32/TrojanDownloader.Wauchos.AK is a trojan which tries to download other malware from the Internet. It can be controlled remotely.
Installation
When executed, the trojan copies itself into the following location:
- %allusersprofile%\ms%variable1%.exe
In order to be executed on every system start, the trojan sets the following Registry entry:
- [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run]
- "%variable2%" = "%allusersprofile%\ms%variable1%.exe"
The trojan may set the following Registry entries:
- [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
- "%variable2%" = "%allusersprofile%\ms%variable1%.exe"
A string with variable content is used instead of %variable1-2% .
The trojan launches the following processes:
- %windir%\system32\msiexec.exe
- %windir%\SysWOW64\msiexec.exe
The trojan creates and runs a new thread with its own code within these running processes.
The following Registry entries are set:
- [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
- "TaskbarNoNotification" = 1
- "HideSCAHealth" =1
- [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]
- "TaskbarNoNotification" = 1
- "HideSCAHealth" = 1
The trojan creates and runs a new thread with its own program code within the following processes:
- explorer.exe
The trojan quits immediately if it detects a running process containing one of the following strings in its name:
- netmon.exe
- procmon.exe
- VMUSrvc.exe
- wireshark.exe
Information stealing
Win32/TrojanDownloader.Wauchos.AK is a trojan that steals sensitive information.
The trojan collects the following information:
- operating system version
- volume serial number
- the IP address of the router in the local network
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 (8) URLs. 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
- send gathered information
The following services are disabled:
- wscsvc
- SharedAccess
- MpsSvc
- WinDefend
- wuauserv
The trojan terminates its execution if it detects that it's running in a specific virtual environment.