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Trojan.Inject3.34781
Added to the Dr.Web virus database:
2020-02-13
Virus description added:
2020-02-16
Technical Information
To ensure autorun and distribution
Changes the following executable system files
Malicious functions
To complicate detection of its presence in the operating system,
blocks the following features:
deletes volume shadow copies.
Executes the following
'<SYSTEM32>\net.exe' stop "audioendpointbuilder" /y
'<SYSTEM32>\net.exe' stop "samss" /y
Injects code into
the following system processes:
Modifies file system
Creates the following files
<Current directory>\iuphyco.exe
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\appli...
%ALLUSERSPROFILE%\application data\adobe\arm\reader_15.007.20033\readerdcmanifest.msi
%ALLUSERSPROFILE%\application data\application data\adobe\arm\reader_15.007.20033\acrordrdcupd1500920077.msp
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\docum...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\micro...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\oracl...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\start...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\event viewer...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\assistance\c...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\documents\my music\sam...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\documents\my pictures\...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\officesoftwa...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\search\data\...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\user account...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\windows\devi...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\windows\powe...
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\windows defe...
%ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\windows nt\m...
%ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab
%ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acrordrdcupd1500820082.msp
%PROGRAMDATA%\microsoft\crypto\rsa\machinekeys\08e575673cce10c72090304839888e02_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
%TEMP%\ryukreadme.html
D:\ryukreadme.html
D:\$recycle.bin\ryukreadme.html
D:\$recycle.bin\s-1-5-21-1960123792-2022915161-3775307078-1001\ryukreadme.html
C:\ryukreadme.html
C:\documents and settings\ryukreadme.html
%ALLUSERSPROFILE%\ryukreadme.html
%ALLUSERSPROFILE%\adobe\ryukreadme.html
%ALLUSERSPROFILE%\adobe\arm\ryukreadme.html
%ALLUSERSPROFILE%\adobe\arm\reader_15.007.20033\ryukreadme.html
%ALLUSERSPROFILE%\adobe\arm\reader_15.008.20082\ryukreadme.html
%ALLUSERSPROFILE%\adobe\arm\s\ryukreadme.html
%ALLUSERSPROFILE%\adobe\arm\s\10428\ryukreadme.html
%ALLUSERSPROFILE%\adobe\arm\{291aa914-a987-4ce9-bd63-ac0a92d435e5}\ryukreadme.html
%ALLUSERSPROFILE%\adobe\setup\ryukreadme.html
%ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\ryukreadme.html
%ALLUSERSPROFILE%\adobe\arm\s\armmanifest.msi
%ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\netframework...
Moves the following files
from %ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab to %ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab.ryk
from %ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi to %ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi.ryk
from %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\appli... to %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\appli...
from %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\docum... to %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\docum...
from %ALLUSERSPROFILE%\adobe\arm\s\armmanifest.msi to %ALLUSERSPROFILE%\adobe\arm\s\armmanifest.msi.ryk
from %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\micro... to %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\micro...
from %ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acrordrdcupd1500820082.msp to %ALLUSERSPROFILE%\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acrordrdcupd1500820082.msp.ryk
from %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\oracl... to %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\application data\oracl...
from %ALLUSERSPROFILE%\application data\application data\adobe\arm\reader_15.007.20033\acrordrdcupd1500920077.msp to %ALLUSERSPROFILE%\application data\application data\adobe\arm\reader_15.007.20033\acrordrdcupd1500920077.msp.ryk
from %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\assistance\c... to %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\assistance\c...
from %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\documents\my pictures\... to %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\documents\my pictures\...
from %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\documents\my music\sam... to %ALLUSERSPROFILE%\application data\application data\application data\application data\application data\application data\application data\application data\application data\documents\my music\sam...
Network activity
UDP
'<LOCALNET>.54.1':7
'22#.0.0.22':7
'22#.0.0.252':7
'23#.#55.255.250':7
Miscellaneous
Creates and executes the following
'<Current directory>\iuphyco.exe' 8 LAN
'<Current directory>\iuphyco.exe' 8 LAN' (with hidden window)
'<SYSTEM32>\net.exe' stop "audioendpointbuilder" /y' (with hidden window)
'<SYSTEM32>\net.exe' stop "samss" /y' (with hidden window)
'<SYSTEM32>\icacls.exe' "A:\*" /grant Everyone:F /T /C /Q' (with hidden window)
'<SYSTEM32>\icacls.exe' "C:\*" /grant Everyone:F /T /C /Q' (with hidden window)
'<SYSTEM32>\icacls.exe' "D:\*" /grant Everyone:F /T /C /Q' (with hidden window)
'<SYSTEM32>\icacls.exe' "E:\*" /grant Everyone:F /T /C /Q' (with hidden window)
'<SYSTEM32>\icacls.exe' "<Drive name for removable media>:\*" /grant Everyone:F /T /C /Q' (with hidden window)
'<SYSTEM32>\cmd.exe' /c "WMIC.exe shadowcopy delet"' (with hidden window)
'<SYSTEM32>\vssadmin.exe' Delete Shadows /all /quiet' (with hidden window)
'<SYSTEM32>\bcdedit.exe' /set {default} recoveryenabled No & bcdedit /set {default}' (with hidden window)
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<SYSTEM32>\Dwm.exe" /f' (with hidden window)
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Full path to file>" /f' (with hidden window)
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Current directory>\iUPHycO.exe" /f' (with hidden window)
Executes the following
'<SYSTEM32>\net1.exe' stop "audioendpointbuilder" /y
'<SYSTEM32>\net1.exe' stop "samss" /y
'<SYSTEM32>\icacls.exe' "A:\*" /grant Everyone:F /T /C /Q
'<SYSTEM32>\icacls.exe' "C:\*" /grant Everyone:F /T /C /Q
'<SYSTEM32>\icacls.exe' "D:\*" /grant Everyone:F /T /C /Q
'<SYSTEM32>\icacls.exe' "E:\*" /grant Everyone:F /T /C /Q
'<SYSTEM32>\icacls.exe' "<Drive name for removable media>:\*" /grant Everyone:F /T /C /Q
'<SYSTEM32>\cmd.exe' /c "WMIC.exe shadowcopy delet"
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<SYSTEM32>\Dwm.exe" /f
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Full path to file>" /f
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Current directory>\iUPHycO.exe" /f
'<SYSTEM32>\wbem\wmic.exe' shadowcopy delet
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
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