Pour le fonctionnement correct du site, vous devez activer JavaScript dans votre navigateur.
Trojan.Siggen21.43702
Added to the Dr.Web virus database:
2023-10-17
Virus description added:
2024-03-29
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[HKLM\Software\Classes\cfxxefile\shell\open\command] '' = '"%1" %*'
[HKLM\Software\Classes\exefile\shell\open\command] '' = '"%1" %*'
[HKLM\Software\Classes\.com] '' = 'comfile'
[HKLM\Software\Classes\.exe] '' = 'exefile'
[HKLM\Software\Classes\.bat] '' = 'batfile'
[HKLM\Software\Classes\.cmd] '' = 'cmdfile'
[HKLM\Software\Classes\.pif] '' = 'piffile'
[HKLM\Software\Classes\comfile\shell\open\command] '' = '"%1" %*'
[HKLM\Software\Classes\batfile\shell\open\command] '' = '"%1" %*'
[HKLM\Software\Classes\cmdfile\shell\open\command] '' = '"%1" %*'
[HKLM\Software\Classes\piffile\shell\open\command] '' = '"%1" %*'
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] '' = ''
[HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'GrpConv' = 'grpconv -o'
Malicious functions
To complicate detection of its presence in the operating system,
blocks the following features:
Modifies file system
Creates the following files
Sets the 'hidden' attribute to the following files
C:\32788r22fwjfw\thumbs.db
Deletes the following files
C:\32788r22fwjfw\winnt00
C:\32788r22fwjfw\md5sum00.pif
C:\32788r22fwjfw\pv.txt
C:\32788r22fwjfw\nlscodepageacp00
C:\32788r22fwjfw\nlslanguage00
C:\32788r22fwjfw\cfversionold00
Moves the following files
from C:\32788r22fwjfw\ncmd.cfxxe to C:\32788r22fwjfw\ncmd.com
from C:\32788r22fwjfw\pv.exe to C:\32788r22fwjfw\pv.cfxxe
Miscellaneous
Searches for the following windows
ClassName: 'EDIT' WindowName: ''
Creates and executes the following
'C:\32788r22fwjfw\iexplore.exe' win close ititle " Security"
'C:\32788r22fwjfw\swreg.cfxxe' DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Option
'C:\32788r22fwjfw\grep.cfxxe' -isq "ProductType.*WinNT" WinNT00
'C:\32788r22fwjfw\swreg.exe' QUERY "HKLM\System\Currentcontrolset\Control\ProductOptions" /v ProductType
'C:\32788r22fwjfw\n.pif' cmdwait 2500 exec hide "32788R22FWJFW\cmd.cfxxe" /c 32788R22FWJFW\p.cmd
'C:\32788r22fwjfw\nircmd.cfxxe' WIN CLOSE CLASS "#32770"
'C:\32788r22fwjfw\swreg.exe' QUERY "HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000\Control" /v ActiveService
'C:\32788r22fwjfw\grep.cfxxe' -F "5.1.2" OsVer
'C:\32788r22fwjfw\cmd.cfxxe' /c 32788R22FWJFW\p.cmd
'C:\32788r22fwjfw\nircmd.cfxxe' cmdwait 1700 exec hide "32788R22FWJFW\cmd.cfxxe" /c 32788R22FWJFW\p.cmd
'C:\32788r22fwjfw\swreg.cfxxe' QUERY "HKCU\Console_combofixbackup"
'C:\32788r22fwjfw\nircmd.cfxxe' exec hide 32788R22FWJFW\GSAR.cfxxe -if -s\:000M:000i:000c:000r:000o -r\:001M:000i:000c:000r:000o "<SYSTEM32>\cmd.exe" "32788R22FWJFW\cmd.cfxxe"
'C:\32788r22fwjfw\gsar.cfxxe' -if -s\:000M:000i:000c:000r:000o -r\:001M:000i:000c:000r:000o "<SYSTEM32>\cmd.exe" "32788R22FWJFW\cmd.cfxxe"
'C:\32788r22fwjfw\n.pif' exec hide 32788R22FWJFW\GSAR.cfxxe -if -s\:000M:000i:000c:000r:000o -r\:001M:000i:000c:000r:000o "<SYSTEM32>\cmd.exe" "32788R22FWJFW\cmd.cfxxe"
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32" /reset /q
'C:\32788r22fwjfw\swreg.cfxxe' COPY "HKCU\Console" "HKCU\Console_combofixbackup" /s
'C:\32788r22fwjfw\n.pif' cmdwait 1000 exec hide "32788R22FWJFW\cmd.cfxxe" /c 32788R22FWJFW\p.cmd
'C:\32788r22fwjfw\swreg.cfxxe' ADD "HKCU\Console" /v "QuickEdit" /T REG_DWORD /D 0
'C:\32788r22fwjfw\swreg.cfxxe' ADD HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\procexp90.Sys /D Driver
'C:\32788r22fwjfw\swreg.cfxxe' QUERY "HKLM\SYSTEM\CurrentControlSet\Control\Nls\CodePage" /V ACP
'C:\32788r22fwjfw\sed.cfxxe' "/.* /!d; s//@CHCP.com /" NlsCodePageACP00
'C:\32788r22fwjfw\swreg.cfxxe' ADD HKCU\Console /V CodePage /T REG_DWORD /D "1252"
'C:\32788r22fwjfw\swreg.cfxxe' ADD HKU\S-1-5-18\Console /V CodePage /T REG_DWORD /D "1252"
'C:\32788r22fwjfw\swreg.cfxxe' ADD "HKCU\Console" /V "InsertMode" /T REG_DWORD /D 1
'C:\32788r22fwjfw\sed.cfxxe' "/.* /!d; s///" NlsLanguage00
'C:\32788r22fwjfw\grep.cfxxe' -isq "09$" NlsLanguageDefault
'C:\32788r22fwjfw\swreg.cfxxe' QUERY HKLM\Software\Swearware /v combofix_wow
'C:\32788r22fwjfw\sed.cfxxe' "/.* /!d; s/// " CFVersionOld00
'C:\32788r22fwjfw\swreg.cfxxe' QUERY "HKLM\Software\Swearware" /V LastDir
'C:\32788r22fwjfw\swreg.cfxxe' ADD HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\procexp90.Sys /D Driver
'C:\32788r22fwjfw\swreg.cfxxe' QUERY HKLM\System\CurrentControlSet\Control\NLS\Language /V Default
'C:\32788r22fwjfw\nircmd.cfxxe' LOOP 2 80 BEEP 3000 200
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\SWXCACLS.cfxxe "<SYSTEM32>\cmd.exe" /P /GA:F /GS:F /GU:X /GP:X /I ENABLE /Q
'C:\32788r22fwjfw\nircmd.cfxxe' KILLPROCESS "<Full path to file>"
'C:\32788r22fwjfw\iexplore.exe' win close ititle "Security Central"
'C:\32788r22fwjfw\pev.exe' UZIP License\pv_5_2_2.zip .\
'C:\32788r22fwjfw\n.pif' shellcopy <SYSTEM32>\en-us\cmd.exe.mui 32788R22FWJFW\EN-US\cmd.cfxxe.mui yestoall noerrorui silent nosecattr
'C:\32788r22fwjfw\nircmd.cfxxe' shellcopy <SYSTEM32>\en-us\cmd.exe.mui 32788R22FWJFW\EN-US\cmd.cfxxe.mui yestoall noerrorui silent nosecattr
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\swreg.exe acl "HKLM\SOFTWARE\Microsoft\Command Processor" /reset /q
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\swreg.exe acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options" /reset /q
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\swreg.exe acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32" /da:r /q
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\PEV.exe RIMPORT 32788R22FWJFW\EXE.reg
'C:\32788r22fwjfw\pev.exe' RIMPORT 32788R22FWJFW\EXE.reg
'C:\32788r22fwjfw\n.pif' exec hide 32788R22FWJFW\PEV.exe RIMPORT 32788R22FWJFW\EXE.reg
'C:\32788r22fwjfw\n.pif' shexec install 32788R22FWJFW\Prep.inf
'C:\32788r22fwjfw\pev.cfxxe' -outputtemp00 -rtf -c:##5# .\* and { License.exe or 32788R22FWJFW.exe or OsVer.exe or WinNT.exe or N_.exe }
'C:\32788r22fwjfw\license\iexplore.exe' -k * and -preg"\\(.{3,}tssd|\d{3,}|svch[^o]st|sv[^c]host|.)\.exe$|%temp:\=\\%\\.*" and not ComboFix.exe
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\pev.exe -k * and -preg"\\(.{3,}tssd|\d{3,}|svch[^o]st|sv[^c]host|.)\.exe$|%temp:\=\\%\\.*" and not ComboFix.exe
'C:\32788r22fwjfw\iexplore.exe' exec hide 32788R22FWJFW\License\iexplore.exe -k * and -preg"\\(.{3,}tssd|\d{3,}|svch[^o]st|sv[^c]host|.)\.exe$|%temp:\=\\%\\.*" and not ComboFix.exe
'C:\32788r22fwjfw\sed.cfxxe' -r "/.* (.:\\[^\\]*)$/!d; s//\1/"
'C:\32788r22fwjfw\pev.exe' -k * and -preg"\\(.{3,}tssd|\d{3,}|svch[^o]st|sv[^c]host|.)\.exe$|%temp:\=\\%\\.*" and not ComboFix.exe
'C:\32788r22fwjfw\iexplore.exe' win close ititle "Security Tool"
'C:\32788r22fwjfw\n.pif' exec hide 32788R22FWJFW\SWREG.exe acl "hklm\software\microsoft\windows nt\currentversion\windows" /O Guest /Q
'C:\32788r22fwjfw\iexplore.exe' win close ititle "Security essentials"
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\SWREG.exe acl "hklm\software\microsoft\windows nt\currentversion\windows" /O Guest /Q
'C:\32788r22fwjfw\swreg.exe' acl "hklm\software\microsoft\windows nt\currentversion\windows" /O Guest /Q
'C:\32788r22fwjfw\swxcacls.cfxxe' "<SYSTEM32>\cmd.exe" /P /GA:F /GS:F /GU:X /GP:X /I ENABLE /Q
'C:\32788r22fwjfw\n.pif' cmdwait 150 exec hide 32788R22FWJFW\SWREG.exe acl "hklm\software\microsoft\windows nt\currentversion\windows" /DE:F /Q
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Command Processor" /reset /q
'C:\32788r22fwjfw\swreg.exe' acl "hklm\software\microsoft\windows nt\currentversion\windows" /DE:F /Q
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options" /reset /q
'C:\32788r22fwjfw\nircmdc.cfxxe' QBOXCOMTOP "The following websites are not in any way affiliated to ComboFix:~n~n http://www.combofix.org/~n http://www.combofixdownload.com/~n~nIf you have purchased anything from them,...
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32" /da:r /q
'C:\32788r22fwjfw\n.pif' cmdwait 3000 exec hide 32788R22FWJFW\swreg.exe acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32" /reset /q
'C:\32788r22fwjfw\iexplore.exe' win close ititle "SysInternals"
'C:\32788r22fwjfw\hidec.exe' 32788R22FWJFW\SWREG.exe acl "hklm\software\microsoft\windows nt\currentversion\windows" /DE:F /Q
'C:\32788r22fwjfw\pev.exe' RIMPORT 32788R22FWJFW\EXE.reg' (with hidden window)
'C:\32788r22fwjfw\cmd.cfxxe' /c 32788R22FWJFW\p.cmd' (with hidden window)
'C:\32788r22fwjfw\swreg.exe' acl "hklm\software\microsoft\windows nt\currentversion\windows" /O Guest /Q' (with hidden window)
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32" /da:r /q' (with hidden window)
'C:\32788r22fwjfw\pev.exe' -k * and -preg"\\(.{3,}tssd|\d{3,}|svch[^o]st|sv[^c]host|.)\.exe$|%temp:\=\\%\\.*" and not ComboFix.exe' (with hidden window)
'C:\32788r22fwjfw\gsar.cfxxe' -if -s\:000M:000i:000c:000r:000o -r\:001M:000i:000c:000r:000o "<SYSTEM32>\cmd.exe" "32788R22FWJFW\cmd.cfxxe"' (with hidden window)
'C:\32788r22fwjfw\swxcacls.cfxxe' "<SYSTEM32>\cmd.exe" /P /GA:F /GS:F /GU:X /GP:X /I ENABLE /Q' (with hidden window)
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32" /reset /q' (with hidden window)
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options" /reset /q' (with hidden window)
'C:\32788r22fwjfw\license\iexplore.exe' -k * and -preg"\\(.{3,}tssd|\d{3,}|svch[^o]st|sv[^c]host|.)\.exe$|%temp:\=\\%\\.*" and not ComboFix.exe' (with hidden window)
'C:\32788r22fwjfw\swreg.exe' acl "HKLM\SOFTWARE\Microsoft\Command Processor" /reset /q' (with hidden window)
'C:\32788r22fwjfw\swreg.exe' acl "hklm\software\microsoft\windows nt\currentversion\windows" /DE:F /Q' (with hidden window)
Executes the following
'<SYSTEM32>\rundll32.exe' setupapi,InstallHinfSection DefaultInstall 132 C:\32788R22FWJFW\Prep.inf
'<SYSTEM32>\runonce.exe' -r
'<SYSTEM32>\grpconv.exe' -o
'<SYSTEM32>\verclsid.exe' /C {2559A1F4-21D7-11D4-BDAF-00C04F60B9F0} /I {000214E6-0000-0000-C000-000000000046} /X 0x401
'<SYSTEM32>\verclsid.exe' /C {2559A1F5-21D7-11D4-BDAF-00C04F60B9F0} /I {000214E6-0000-0000-C000-000000000046} /X 0x401
'<SYSTEM32>\chcp.com' 1252
Recommandations pour le traitement
Windows
macOS
Linux
Android
Si le système d'exploitation peut être démarré (en mode normal ou en mode sans échec), téléchargez Dr.Web Security Space et lancez un scan complet de votre ordinateur et de tous les supports amovibles que vous utilisez. En savoir plus sur Dr.Web Security Space .
Si le démarrage du système d'exploitation est impossible, veuillez modifier les paramètres du BIOS de votre ordinateur pour démarrer votre ordinateur via CD/DVD ou clé USB. Téléchargez l'image du disque de secours de restauration du système Dr.Web® LiveDisk ou l'utilitaire pour enregistrer Dr.Web® LiveDisk sur une clé USB, puis préparez la clé USB appropriée. Démarrez l'ordinateur à l'aide de cette clé et lancez le scan complet et le traitement des menaces détectées.
Si votre appareil mobile fonctionne correctement, veuillez télécharger et installer sur votre appareil mobile Dr.Web pour Android . Lancez un scan complet et suivez les recommandations sur la neutralisation des menaces détectées.
Si l'appareil mobile est bloqué par le Trojan de la famille Android.Locker (un message sur la violation grave de la loi ou la demande d'une rançon est affiché sur l'écran de l'appareil mobile), procédez comme suit:
démarrez votre Smartphone ou votre tablette en mode sans échec (si vous ne savez pas comment faire, consultez la documentation de l'appareil mobile ou contactez le fabricant) ;
puis téléchargez et installez sur votre appareil mobile Dr.Web pour Android et lancez un scan complet puis suivez les recommandations sur la neutralisation des menaces détectées ;
Débranchez votre appareil et rebranchez-le.
En savoir plus sur Dr.Web pour Android
Téléchargez Dr.Web pour Android
Gratuit pour 3 mois
Tous les composants de protection
Renouvellement de la démo via AppGallery/Google Pay
Nous utilisons des cookies sur notre site web à des fins uniques d’analyse de la fréquentation et de récolte de données statistiques. En naviguant sur notre site, vous pouvez accepter ou refuser l’utilisation de ces fichiers cookies.
En savoir plus : Politique de confidentialité
Accepter
Refuser