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Trojan.Siggen32.65307

Added to the Dr.Web virus database: 2026-07-16

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'SystemUpdate' = '<Full path to file>'
Creates or modifies the following files
  • %APPDATA%\microsoft\windows\start menu\programs\startup\stealer.exe
Malicious functions
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="ReverseShell" dir=in action=allow protocol=TCP localport=4444
Terminates or attempts to terminate
the following system processes:
  • %WINDIR%\syswow64\cmd.exe
Modifies file system
Sets the 'hidden' attribute to the following files
  • <Full path to file>
Network activity
Connects to
  • 'di##ord.com':443
  • '<LOCALNET>.1.1':445
  • 'sk#.com':443
  • 'bb#.co.uk':80
  • 'sk#.com':80
  • 'nh#.uk':80
  • 'nh#.uk':443
  • 'bb#.co.uk':443
  • 'go#.uk':443
  • 'go#.uk':80
  • 'th###ardian.com':80
  • 'th###ardian.com':443
  • 'bu####regierung.de':80
  • 'bu####regierung.de':443
  • 'go##rno.it':80
  • 'go##rno.it':443
  • 'kr##lin.ru':80
  • 'kr##lin.ru':443
  • 'go###nment.ru':80
  • 'go###nment.ru':443
  • 'mi#.ru':443
  • 'mi#.ru':80
  • 'ri#.ru':80
  • 'ri#.ru':443
  • 'ta#s.ru':443
  • 'ta#s.ru':80
  • 'la###ncloa.es':80
  • 'la###ncloa.es':443
  • 'pr####ent.gov.ua':443
  • 'pr####ent.gov.ua':80
  • 'ra##.gov.ua':80
  • 'ra##.gov.ua':443
  • '<LOCALNET>.1.2':445
  • 'st##e.gov':80
  • 'st##e.gov':443
  • 'mf#.gov.ua':80
  • 'mf#.gov.ua':443
  • 'de##nse.gov':80
  • 'de##nse.gov':443
  • 'ap##e.com':80
  • 'ap##e.com':443
  • 'microsoft.com':443
  • 'microsoft.com':80
  • 'fo##ews.com':443
  • 'fo##ews.com':80
  • 'cn#.com':80
  • 'cn#.com':443
  • 'wh###house.gov':80
  • 'wh###house.gov':443
  • 'ny##mes.com':80
  • 'ny##mes.com':443
  • 'google.com':80
  • 'google.com':443
  • 'wa####gtonpost.com':443
  • 'wa####gtonpost.com':80
  • 'am##on.com':80
  • 'am##on.com':443
  • '<LOCALNET>.1.3':445
  • '<LOCALNET>.1.4':445
TCP
HTTP GET requests
  • http://bu####regierung.de/admin
  • http://pr####ent.gov.ua/index.php
  • http://nh#.uk/wp-admin
  • http://sk#.com/wp-admin
  • http://ny##mes.com/dashboard
  • http://google.com/dashboard
  • http://wa####gtonpost.com/dashboard
  • http://am##on.com/dashboard
  • http://go##rno.it/admin
  • http://th###ardian.com/api
  • http://go#.uk/wp-admin
  • http://bu####regierung.de/api
  • http://mf#.gov.ua/index.php
  • http://ri#.ru/admin
  • http://st##e.gov/index.php
  • http://fo##ews.com/index.php
  • http://ap##e.com/index.php
  • http://microsoft.com/index.php
  • http://de##nse.gov/index.php
  • http://ta#s.ru/admin
  • http://wh###house.gov/index.php
  • http://bb#.co.uk/wp-admin
  • http://ny##mes.com/index.php
  • http://wa####gtonpost.com/index.php
  • http://am##on.com/index.php
  • http://th###ardian.com/wp-admin
  • http://google.com/index.php
  • http://go##rno.it/api
  • http://bu####regierung.de/wp-admin
  • http://ta#s.ru/api
  • http://go###nment.ru/admin
  • http://mi#.ru/admin
  • http://pr####ent.gov.ua/admin
  • http://ri#.ru/api
  • http://ap##e.com/admin
  • http://fo##ews.com/admin
  • http://st##e.gov/admin
  • http://mi#.ru/api
  • http://wh###house.gov/admin
  • http://ta#s.ru/wp-admin
  • http://microsoft.com/admin
  • http://wa####gtonpost.com/admin
  • http://go###nment.ru/api
  • http://cn#.com/index.php
  • http://de##nse.gov/admin
  • http://th###ardian.com/
  • http://ri#.ru/wp-admin
  • http://google.com/admin
  • http://ap##e.com/api
  • http://am##on.com/admin
  • http://bu####regierung.de/
  • http://wh###house.gov/api
  • http://fo##ews.com/api
  • http://st##e.gov/api
  • http://go##rno.it/wp-admin
  • http://sk#.com/
  • http://pr####ent.gov.ua/api
  • http://microsoft.com/api
  • http://nh#.uk/
  • http://mi#.ru/wp-admin
  • http://wa####gtonpost.com/api
  • http://go###nment.ru/wp-admin
  • http://de##nse.gov/api
  • http://ap##e.com/wp-admin
  • http://google.com/api
HTTP POST requests
  • http://go###nment.ru/index.php
  • http://bu####regierung.de/admin
  • http://pr####ent.gov.ua/index.php
  • http://nh#.uk/wp-admin
  • http://sk#.com/wp-admin
  • http://ny##mes.com/dashboard
  • http://google.com/dashboard
  • http://wa####gtonpost.com/dashboard
  • http://am##on.com/dashboard
  • http://go##rno.it/admin
  • http://th###ardian.com/api
  • http://go#.uk/wp-admin
  • http://bu####regierung.de/api
  • http://mf#.gov.ua/index.php
  • http://ri#.ru/admin
  • http://st##e.gov/index.php
  • http://fo##ews.com/index.php
  • http://ap##e.com/index.php
  • http://microsoft.com/index.php
  • http://de##nse.gov/index.php
  • http://ta#s.ru/admin
  • http://wh###house.gov/index.php
  • http://bb#.co.uk/wp-admin
  • http://ny##mes.com/index.php
  • http://wa####gtonpost.com/index.php
  • http://am##on.com/index.php
  • http://th###ardian.com/wp-admin
  • http://google.com/index.php
  • http://go##rno.it/api
  • http://bu####regierung.de/wp-admin
  • http://ta#s.ru/api
  • http://go###nment.ru/admin
  • http://mi#.ru/admin
  • http://pr####ent.gov.ua/admin
  • http://kr##lin.ru/index.php
  • http://ri#.ru/api
  • http://ap##e.com/admin
  • http://fo##ews.com/admin
  • http://st##e.gov/admin
  • http://mi#.ru/api
  • http://wh###house.gov/admin
  • http://ta#s.ru/wp-admin
  • http://microsoft.com/admin
  • http://wa####gtonpost.com/admin
  • http://go###nment.ru/api
  • http://cn#.com/index.php
  • http://de##nse.gov/admin
  • http://th###ardian.com/
  • http://ri#.ru/wp-admin
  • http://google.com/admin
  • http://ap##e.com/api
  • http://am##on.com/admin
  • http://bu####regierung.de/
  • http://wh###house.gov/api
  • http://fo##ews.com/api
  • http://st##e.gov/api
  • http://go##rno.it/wp-admin
  • http://sk#.com/
  • http://pr####ent.gov.ua/api
  • http://microsoft.com/api
  • http://nh#.uk/
  • http://mi#.ru/wp-admin
  • http://wa####gtonpost.com/api
  • http://go###nment.ru/wp-admin
  • http://de##nse.gov/api
  • http://ap##e.com/wp-admin
  • http://google.com/api
Other
  • 'di##ord.com':443
UDP
  • DNS ASK di##ord.com
  • DNS ASK bb#.co.uk
  • DNS ASK sk#.com
  • DNS ASK nh#.uk
  • DNS ASK go#.uk
  • DNS ASK th###ardian.com
  • DNS ASK bu####regierung.de
  • DNS ASK go#v.fr
  • DNS ASK go##rno.it
  • DNS ASK la###ncloa.es
  • DNS ASK kr##lin.ru
  • DNS ASK go###nment.ru
  • DNS ASK mi#.ru
  • DNS ASK ri#.ru
  • DNS ASK ta#s.ru
  • DNS ASK pr####ent.gov.ua
  • DNS ASK ra##.gov.ua
  • DNS ASK km#.gov.ua
  • DNS ASK mf#.gov.ua
  • DNS ASK wh###house.gov
  • DNS ASK st##e.gov
  • DNS ASK de##nse.gov
  • DNS ASK pe###gon.gov
  • DNS ASK cn#.com
  • DNS ASK fo##ews.com
  • DNS ASK ny##mes.com
  • DNS ASK wa####gtonpost.com
  • DNS ASK microsoft.com
  • DNS ASK google.com
  • DNS ASK ap##e.com
  • DNS ASK am##on.com
Miscellaneous
Searches for the following windows
  • ClassName: '#32768' WindowName: ''
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c reg add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v SystemUpdate /t REG_SZ /d "<Full path to file>" /f 2>nul
  • '%WINDIR%\syswow64\reg.exe' add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v SystemUpdate /t REG_SZ /d "<Full path to file>" /f
  • '%WINDIR%\syswow64\cmd.exe' /c start cmd /c "echo SYSTEM ERROR & echo Press any key to continue... & pause" 2>nul
  • '%WINDIR%\syswow64\cmd.exe' /c netsh advfirewall firewall add rule name="ReverseShell" dir=in action=allow protocol=TCP localport=4444 2>nul
  • '%WINDIR%\syswow64\cmd.exe' /c rundll32.exe user32.dll,UpdatePerUserSystemParameters 2>nul
  • '%WINDIR%\syswow64\cmd.exe' /c netsh wlan show profile name=* key=clear
  • '%WINDIR%\syswow64\netsh.exe' wlan show profile name=* key=clear
  • '%WINDIR%\syswow64\cmd.exe' /c "echo SYSTEM ERROR & echo Press any key to continue... & pause"
  • '%WINDIR%\syswow64\rundll32.exe' user32.dll,UpdatePerUserSystemParameters
  • '%WINDIR%\syswow64\cmd.exe' /c start cmd /c "color 0a & dir C:\ /s /b & pause" 2>nul
  • '%WINDIR%\syswow64\cmd.exe' /c "color 0a & dir C:\ /s /b & pause"
  • '%WINDIR%\syswow64\cmd.exe' /c start cmd /c "color 0c & ping 8.#.8.8 -t" 2>nul
  • '%WINDIR%\syswow64\cmd.exe' /c "color 0c & ping 8.#.8.8 -t"
  • '%WINDIR%\syswow64\cmd.exe' /c start cmd /c "color 0e & tracert google.com" 2>nul

Curing recommendations

  1. 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.
  2. 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.
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After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. 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.
  2. 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.

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