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Trojan.Siggen10.22432
Added to the Dr.Web virus database:
2020-09-17
Virus description added:
2020-09-19
Technical Information
Malicious functions
Executes the following
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="STARCAT TCP" dir=in action=allow protocol=TCP localport=25001-25010
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="STARCAT UDP" dir=in action=allow protocol=UDP localport=25000,25001,26000
Modifies file system
Creates the following files
<Current directory>\moscii\config\log.cfg
<Current directory>\moscii\logs\<File name>.exe.log
%TEMP%\tmp_44091.6621055556
%WINDIR%\<File name>.exe
%WINDIR%\moscii\config\log.cfg
%WINDIR%\moscii\logs\<File name>.exe.log
%TEMP%\tmp_44091.6621591782
%WINDIR%\vistamnt.exe
%WINDIR%\moscii\logs\vistamnt.exe.log
%TEMP%\tmp_44091.6622296875
%WINDIR%\moscii\inventory\46b3ca58-2286-4284-9f05-3bf58e2e2eff_swinv.xml
%WINDIR%\moscii\inventory\46b3ca58-2286-4284-9f05-3bf58e2e2eff_hwinv.xml
%WINDIR%\moscii\inventory\46b3ca58-2286-4284-9f05-3bf58e2e2eff_info.xml
Deletes the following files
%TEMP%\tmp_44091.6621055556
%TEMP%\tmp_44091.6621591782
%TEMP%\tmp_44091.6622296875
Miscellaneous
Creates and executes the following
'%WINDIR%\<File name>.exe'
'%WINDIR%\vistamnt.exe'
'%WINDIR%\syswow64\cmd.exe' ^/C del %TEMP%\tmp_*.* >%TEMP%\\tmp_44091.6621055556' (with hidden window)
'%WINDIR%\<File name>.exe' ' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' ^/C del %TEMP%\tmp_*.* >%TEMP%\\tmp_44091.6621591782' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' ^/C hostname >%TEMP%\\tmp_44091.6622296875' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C hostname' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="RMC9"' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="StarCat Agent"' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="STARCAT TCP"' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall delete rule name="STARCAT TCP"' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall add rule name="STARCAT TCP" dir=in action=allow protocol=TCP localport=25001-25010' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="STARCAT UDP"' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall delete rule name="STARCAT UDP"' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall add rule name="STARCAT UDP" dir=in action=allow protocol=UDP localport=25000,25001,26000' (with hidden window)
Executes the following
'%WINDIR%\syswow64\cmd.exe' ^/C del %TEMP%\tmp_*.* >%TEMP%\\tmp_44091.6621055556
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall delete rule name="STARCAT UDP"
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall show rule name="STARCAT UDP"
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="STARCAT UDP"
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall add rule name="STARCAT TCP" dir=in action=allow protocol=TCP localport=25001-25010
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall delete rule name="STARCAT TCP"
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall delete rule name="STARCAT TCP"
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall show rule name="STARCAT TCP"
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="STARCAT TCP"
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall show rule name="StarCat Agent"
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="StarCat Agent"
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall show rule name="RMC9"
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall show rule name="RMC9"
'%WINDIR%\syswow64\cmd.exe' /C hostname
'%WINDIR%\syswow64\hostname.exe'
'%WINDIR%\syswow64\cmd.exe' ^/C hostname >%TEMP%\\tmp_44091.6622296875
'<SYSTEM32>\rundll32.exe' <SYSTEM32>\FirewallControlPanel.dll,ShowNotificationDialog /configure /ETOnly 0 /OnProfiles 6 /OtherAllowed 0 /OtherBlocked 0 /OtherEdgeAllowed 0 /NewBlocked 4 "%WINDIR%\<File name>.exe"
'%WINDIR%\syswow64\cmd.exe' ^/C del %TEMP%\tmp_*.* >%TEMP%\\tmp_44091.6621591782
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall delete rule name="STARCAT UDP"
'%WINDIR%\syswow64\cmd.exe' /C netsh advfirewall firewall add rule name="STARCAT UDP" dir=in action=allow protocol=UDP localport=25000,25001,26000
Curing recommendations
Windows
macOS
Linux
Android
If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space .
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
Switch off your device and turn it on as normal.
Find out more about Dr.Web for Android
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