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Trojan.Siggen11.44473
Added to the Dr.Web virus database:
2020-11-22
Virus description added:
2020-11-24
Technical Information
Malicious functions
Searches for registry branches where third party applications store passwords
[<HKCU>\Software\ORL\WinVNC3]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 6 Professional\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 7 Home\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 7 Professional\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 8 Home\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 8 Professional\QCToolbar]
[<HKCU>\Software\FlashFXP\3]
[<HKCU>\Software\FlashFXP]
[<HKLM>\Software\Wow6432Node\FlashFXP\3]
[<HKLM>\Software\FlashFXP\3]
[<HKLM>\Software\Wow6432Node\FlashFXP]
[<HKLM>\Software\FlashFXP]
[<HKCU>\Software\FileZilla]
[<HKCU>\Software\BPFTP\Bullet Proof FTP\Main]
[<HKCU>\Software\BulletProof Software\BulletProof FTP Client\Main]
[<HKCU>\Software\BPFTP\Bullet Proof FTP\Options]
[<HKCU>\Software\BulletProof Software\BulletProof FTP Client\Options]
[<HKCU>\Software\BPFTP]
[<HKCU>\Software\TurboFTP]
[<HKCU>\Software\Sota\FFFTP\Options]
[<HKCU>\Software\CoffeeCup Software\Internet\Profiles]
[<HKCU>\Software\FTPWare\COREFTP\Sites]
[<HKCU>\Software\FTP Explorer\Profiles]
[<HKCU>\Software\VanDyke\SecureFX]
[<HKCU>\Software\Cryer\WebSitePublisher]
[<HKCU>\Software\ExpanDrive\Sessions]
[<HKCU>\Software\NCH Software\ClassicFTP\FTPAccounts]
[<HKLM>\SOFTWARE\Wow6432Node\NCH Software\Fling\Accounts]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 6 Home\QCToolbar]
[<HKCU>\Software\Martin Prikryl\WinSCP 2\Sessions]
[<HKLM>\Software\Ghisler\Total Commander]
[<HKLM>\Software\Ghisler\Windows Commander]
[<HKLM>\SOFTWARE\Wow6432Node\Miranda]
[<HKLM>\SOFTWARE\Miranda]
[<HKCU>\SOFTWARE\Mirabilis\ICQ\NewOwners]
[<HKCU>\Software\Microsoft\MSNMessenger]
[<HKCU>\Software\Yahoo\Pager]
[<HKCU>\Software\America Online\AOL Instant Messenger (TM)\CurrentVersion\Users]
[<HKCU>\Software\Google\Google Talk\Accounts]
[<HKCU>\Software\Paltalk]
[<HKCU>\Software\AIM\AIMPro]
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Trillian]
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Trillian]
[<HKCU>\Software\RimArts\B2\Settings]
[<HKCU>\SOFTWARE\RIT\The Bat!]
[<HKCU>\SOFTWARE\RIT\The Bat!\Users depot]
[<HKCU>\Software\Microsoft\Internet Account Manager\Accounts]
[<HKLM>\Software\Wow6432Node\Microsoft\Internet Account Manager]
[<HKLM>\Software\Microsoft\Internet Account Manager]
[<HKCU>\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Microsoft Outlook Internet Settings]
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook]
[<HKCU>\SOFTWARE\Far\Plugins\FTP\Hosts]
[<HKCU>\SOFTWARE\Far2\Plugins\FTP\Hosts]
[<HKCU>\Software\Far\SavedDialogHistory\FTPHost]
[<HKCU>\Software\Far2\SavedDialogHistory\FTPHost]
[<HKCU>\Software\Ghisler\Windows Commander]
[<HKCU>\Software\Ghisler\Total Commander]
[<HKLM>\Software\Wow6432Node\Ghisler\Windows Commander]
[<HKLM>\Software\Wow6432Node\Ghisler\Total Commander]
[<HKCU>\Software\South River Technologies\WebDrive\Connections]
Reads files which store third party applications passwords
%APPDATA%\mozilla\firefox\profiles.ini
%APPDATA%\opera software\opera stable\login data
%LOCALAPPDATA%\google\chrome\user data\default\web data
%LOCALAPPDATA%\google\chrome\user data\default\login data
%APPDATA%\thunderbird\profiles.ini
%LOCALAPPDATA%\google\chrome\user data\default\cookies
Modifies file system
Creates the following files
%ProgramFiles%\a3d90235e113.dll
%TEMP%\1105657.tmp
%TEMP%\1105641.tmp
%TEMP%\1105423.tmp-shm
%TEMP%\1105423.tmp
%TEMP%\1105407.tmp-shm
%TEMP%\1105407.tmp
%TEMP%\1105376.tmp-shm
%TEMP%\1105376.tmp
%TEMP%\1105345.tmp-shm
%TEMP%\1105345.tmp
%TEMP%\1105657.tmp-shm
%TEMP%\1105267.tmp
%TEMP%\1105142.tmp
%TEMP%\1105126.tmp
%TEMP%\1104923.tmp-shm
%TEMP%\1104923.tmp
%TEMP%\1104674.tmp-shm
%TEMP%\1104674.tmp
%TEMP%\tmpd2ea.tmp.ps1
%TEMP%\tmpace1.tmp.ps1
%TEMP%\1092615.tmp
%TEMP%\1087342.tmp
%TEMP%\1105251.tmp
%TEMP%\1105735.tmp
Deletes the following files
%TEMP%\tmpd2ea.tmp.ps1
%TEMP%\1104674.tmp-shm
%TEMP%\1104923.tmp-shm
%TEMP%\1105345.tmp-shm
%TEMP%\1105376.tmp-shm
%TEMP%\1105407.tmp-shm
%TEMP%\1105423.tmp-shm
%TEMP%\1105657.tmp-shm
Deletes itself.
Network activity
Connects to
'37.##0.222.107':443
'79.##0.52.194':443
'16#.#14.188.47':443
Miscellaneous
Searches for the following windows
ClassName: 'TrayNotifyWnd' WindowName: ''
ClassName: 'SysPager' WindowName: ''
ClassName: 'ToolbarWindow32' WindowName: ''
Creates and executes the following
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -Executionpolicy bypass -File "%TEMP%\tmpACE1.tmp.ps1"
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -Executionpolicy bypass -File "%TEMP%\tmpD2EA.tmp.ps1"
'%WINDIR%\syswow64\rundll32.exe' C:\PROGRA~3\A3D902~1.DLL,zz <Full path to file>' (with hidden window)
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -Executionpolicy bypass -File "%TEMP%\tmpACE1.tmp.ps1"' (with hidden window)
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -Executionpolicy bypass -File "%TEMP%\tmpD2EA.tmp.ps1"' (with hidden window)
Executes the following
'%WINDIR%\syswow64\rundll32.exe' C:\PROGRA~3\A3D902~1.DLL,zz <Full path to file>
'%WINDIR%\syswow64\rundll32.exe' C:\PROGRA~3\A3D902~1.DLL,dlkdHJ8=
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
Download Dr.Web for Android
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