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Trojan.Siggen18.30103
Added to the Dr.Web virus database:
2022-08-01
Virus description added:
2022-08-02
Technical Information
Malicious functions
Executes the following
'<SYSTEM32>\taskkill.exe' /t /f /IM osppsvc.exe
Terminates or attempts to terminate
the following system processes:
Miscellaneous
Creates and executes the following
'%TEMP%\nasiboot_active\run.exe'
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\Setup\Scripts\Winact\Windows_Loader.exe"
'%WINDIR%\setup\scripts\winact\aact.exe' /ofsgvlk /ofs=act /taskofs /auto
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\Setup\Scripts\Winact\Enterprise.exe"
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\Setup\Scripts\Winact\Ultimate.exe"
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\AAct.exe"
'%TEMP%\364fb09b-4637-4898-bb52-48a23ae4fa69\dismhost.exe' {186C7588-D7FE-4AB4-946A-3B1C9DC689BB}
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\Setup\Scripts\Winact\AAct.exe"
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\Setup\Scripts\Winact\ConsoleAct.exe"
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\ConsoleAct.exe"
'%TEMP%\nasiboot_active\7z.exe' x -o"%WINDIR%\Setup\Scripts\Winact" -y Config.sys -pCubin@181281
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\Setup\Scripts\Winact\W10DigitalActivation.exe"
'%WINDIR%\setup\scripts\winact\dinjector.exe' /A "%WINDIR%\Setup\Scripts"
'<SYSTEM32>\cmd.exe' /c cscript.exe "%ProgramFiles%\Microsoft Office\Office14\ospp.vbs" //NoLogo /dstatusall' (with hidden window)
'<SYSTEM32>\cmd.exe' /c cscript.exe "%ProgramFiles%\Microsoft Office\Office14\ospp.vbs" //NoLogo /inpkey:VYBBJ-TRJPB-QFQRF-QFT4D-H3GVB' (with hidden window)
'<SYSTEM32>\cmd.exe' /c taskkill.exe /t /f /IM osppsvc.exe' (with hidden window)
'<SYSTEM32>\cmd.exe' /c %WINDIR%\Setup\Scripts\Winact\Add_Defender_Exclusion.cmd' (with hidden window)
'<SYSTEM32>\cmd.exe' /C @7z.exe x -o"%WINDIR%\Setup\Scripts\Winact" -y Config.sys -pCubin@181281' (with hidden window)
'<SYSTEM32>\cmd.exe' /c REG QUERY HKLM\Software\Microsoft\Office /s /v Path /reg:64' (with hidden window)
'<SYSTEM32>\cmd.exe' /c net.exe start osppsvc' (with hidden window)
'<SYSTEM32>\cmd.exe' /c Netsh.exe Advfirewall Firewall delete rule name=0pen_Port_KMS protocol=TCP' (with hidden window)
Executes the following
'<SYSTEM32>\cmd.exe' /C @7z.exe x -o"%WINDIR%\Setup\Scripts\Winact" -y Config.sys -pCubin@181281
'<SYSTEM32>\cmd.exe' /c taskkill.exe /t /f /IM osppsvc.exe
'<SYSTEM32>\cscript.exe' "%ProgramFiles%\Microsoft Office\Office14\ospp.vbs" //NoLogo /inpkey:VYBBJ-TRJPB-QFQRF-QFT4D-H3GVB
'<SYSTEM32>\cmd.exe' /c cscript.exe "%ProgramFiles%\Microsoft Office\Office14\ospp.vbs" //NoLogo /inpkey:VYBBJ-TRJPB-QFQRF-QFT4D-H3GVB
'<SYSTEM32>\cscript.exe' "%ProgramFiles%\Microsoft Office\Office14\ospp.vbs" //NoLogo /dstatusall
'<SYSTEM32>\cmd.exe' /c cscript.exe "%ProgramFiles%\Microsoft Office\Office14\ospp.vbs" //NoLogo /dstatusall
'<SYSTEM32>\net1.exe' start osppsvc
'<SYSTEM32>\net.exe' start osppsvc
'<SYSTEM32>\cmd.exe' /c net.exe start osppsvc
'<SYSTEM32>\reg.exe' QUERY HKLM\Software\Microsoft\Office /s /v Path /reg:64
'<SYSTEM32>\cmd.exe' /c REG QUERY HKLM\Software\Microsoft\Office /s /v Path /reg:64
'<SYSTEM32>\dism.exe' /Online /Get-CurrentEdition
'<SYSTEM32>\findstr.exe' "Enterprise"
'<SYSTEM32>\cmd.exe' /S /D /c" start "" /b /w dism /Online /Get-CurrentEdition "
'<SYSTEM32>\cmd.exe' /c ver
'<SYSTEM32>\attrib.exe' -R -A -S -H *.*
'<SYSTEM32>\cmd.exe' /c %WINDIR%\Setup\Scripts\Winact\activation.cmd
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -nologo -noninteractive -windowStyle hidden -noprofile -command Add-MpPreference -ThreatIDDefaultAction_Ids 2147685180 -ThreatIDDefaultAction_Actions Allow -Force; Add-MpPreference -ThreatIDDef...
'<SYSTEM32>\reg.exe' query "HKU\S-1-5-19\Environment"
'<SYSTEM32>\cmd.exe' /c %WINDIR%\Setup\Scripts\Winact\Add_Defender_Exclusion.cmd
'<SYSTEM32>\cmd.exe' /c Netsh.exe Advfirewall Firewall delete rule name=0pen_Port_KMS protocol=TCP
'<SYSTEM32>\netsh.exe' Advfirewall Firewall delete rule name=0pen_Port_KMS protocol=TCP
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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