HackTool.Win32.Radmin.GD
RiskWare.RemoteAdmin (Malwarebytes), Application.RemoteAdmin.RHU (BitDefender), SPR/RemoteAdmin.AO (Avira)
Windows
Threat Type: Hacking Tool
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be dropped by other malware.
TECHNICAL DETAILS
1,460,224 bytes
Other
No
28 Sep 2018
Drops files, Connects to URLs/IPs, Hides files and processes
Arrival Details
This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It may be dropped by the following malware:
Installation
This Hacking Tool drops the following files:
- %Program Files%\RDP Wrapper\rdpwrap.ini
- %Program Files%\RDP Wrapper\rdpwrap.dll
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It creates the following folders:
- %Program Files%\RDP Wrapper
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other System Modifications
This Hacking Tool modifies the following registry entries:
HKLM\SYSTEM\ControlSet001\
services\TermService\Parameters
ServiceDll = %ProgramFiles%\RDP Wrapper\rdpwrap.dll
HKLM\SYSTEM\ControlSet001\
Control\Terminal Server
fDenyTSConnections = 0
HKLM\SYSTEM\ControlSet001\
Control\Terminal Server\Licensing Core
EnableConcurrentSessions = 1
HKLM\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Winlogon
AllowMultipleTSSessions = 1
Download Routine
This Hacking Tool connects to the following URL(s) to download its configuration file:
- https://{BLOCKED}.{BLOCKED}usercontent.com/stascorp/rdpwrap/master/res/rdpwrap.ini
Other Details
This Hacking Tool sets the attributes of the following file(s) to Hidden and System:
- %AppDataLocal%\Microsoft\Windows\Temporary Internet Files\Content.IE5
- %Application Data%\Microsoft\Windows\Cookies
- %AppDataLocal%\Microsoft\Windows\History\History.IE5
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It does the following:
- Executes the following command to add itself to firewall allowed profiles:
- netsh advfirewall firewall add rule name="Remote Desktop" dir=in protocol=tcp localport=3389 profile=any action=allow
- It has capabilities of the following depending on its configuration:
- General Settings:
- Single user per session
- Hide users on logon screen
- Allow to start custom programs
- Authentication Mode:
- GUI Authentication Only
- Default RDP Authentication
- Network Level Authentication
- Session Shadowing Mode:
- Disable Shadowing
- Full access with user's permission
- Full access without permission
- View only with user's permission
- View only without permission
- General Settings:
SOLUTION
9.850
2.117.00
07 Nov 2018
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Identify and terminate files detected as HackTool.Win32.Radmin.GD
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Scan your computer with your Trend Micro product to delete files detected as HackTool.Win32.Radmin.GD. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
Step 5
Restore this modified registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
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