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Trojan.Siggen11.51855

Added to the Dr.Web virus database: 2020-11-30

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'WindowsUpdateCheck' = '%WINDIR%\Microsoft.NET\Framework\v4.0.30319\CasPol.exe'
Creates or modifies the following files
  • %APPDATA%\microsoft\windows\start menu\programs\aust\chinaa.exe
Creates the following files on removable media
  • <Drive name for removable media>:\.c4d1664ef40ce18f8d41
  • <Drive name for removable media>:\applicantform_en.doc
  • <Drive name for removable media>:\fi51.doc
  • <Drive name for removable media>:\testee.cer
  • <Drive name for removable media>:\contosoroot.cer
  • <Drive name for removable media>:\sdksampleunprivdeveloper.cer
  • <Drive name for removable media>:\sdksampleprivdeveloper.cer
  • <Drive name for removable media>:\contoso.cer
  • <Drive name for removable media>:\contoso_1.cer
  • <Drive name for removable media>:\tileimage.bmp
  • <Drive name for removable media>:\dashborder_120.bmp
  • <Drive name for removable media>:\dashborder_192.bmp
  • <Drive name for removable media>:\dial.bmp
  • <Drive name for removable media>:\archer.avi
  • <Drive name for removable media>:\000814251_video_01.avi
  • <Drive name for removable media>:\split.avi
  • <Drive name for removable media>:\delete.avi
  • <Drive name for removable media>:\correct.avi
  • <Drive name for removable media>:\lisp_success.doc
  • <Drive name for removable media>:\cveuropeo.doc
Malicious functions
Executes the following
  • '%WINDIR%\syswow64\taskkill.exe' /IM tomcat9.exe /F
  • '%WINDIR%\syswow64\net.exe' stop XenSvc
  • '%WINDIR%\syswow64\net.exe' stop UFIDAWebService
  • '%WINDIR%\syswow64\net.exe' stop wanxiao-monitor
  • '%WINDIR%\syswow64\net.exe' stop Apache2.2
  • '%WINDIR%\syswow64\net.exe' stop MSComplianceAudit
  • '%WINDIR%\syswow64\net.exe' stop WebAttendServer
  • '%WINDIR%\syswow64\net.exe' stop "Synology Drive VSS Service x64"
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeADTopology
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeAntispamUpdate
  • '%WINDIR%\syswow64\net.exe' stop DellDRLogSvc
  • '%WINDIR%\syswow64\net.exe' stop mysqltransport
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeCompliance
  • '%WINDIR%\syswow64\net.exe' stop FirebirdGuardianDeafaultInstance
  • '%WINDIR%\syswow64\net.exe' stop VMnetDHCP
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeDagMgmt
  • '%WINDIR%\syswow64\net.exe' stop VMAuthdService
  • '%WINDIR%\syswow64\net.exe' stop JWEM3DBAUTORun
  • '%WINDIR%\syswow64\net.exe' stop Apache2.4
  • '%WINDIR%\syswow64\net.exe' stop xenlite
  • '%WINDIR%\syswow64\taskkill.exe' /IM VBoxSDS.exe /F
  • '%WINDIR%\syswow64\net.exe' stop U8WorkerService1
  • '%WINDIR%\syswow64\net.exe' stop HaoZipSvc
  • '%WINDIR%\syswow64\taskkill.exe' /IM sqlservr.exe /F
  • '%WINDIR%\syswow64\net.exe' stop UIODetect
  • '%WINDIR%\syswow64\taskkill.exe' /IM pg_ctl.exe /F
  • '%WINDIR%\syswow64\taskkill.exe' /IM ThunderPlatform.exe /F
  • '%WINDIR%\syswow64\taskkill.exe' /IM BackupExec.exe /F
  • '%WINDIR%\syswow64\taskkill.exe' /IM ReportingServicesService.exe /F
  • '%WINDIR%\syswow64\net.exe' stop U8WorkerService2
  • '%WINDIR%\syswow64\net.exe' stop "igfxCUIService2.0.0.0"
  • '%WINDIR%\syswow64\net.exe' stop VMwareHostd
  • '%WINDIR%\syswow64\net.exe' stop "memcached Server"
  • '%WINDIR%\syswow64\net.exe' stop Realtek11nSU
  • '%WINDIR%\syswow64\net.exe' stop TeamViewer8
  • '%WINDIR%\syswow64\net.exe' stop VMUSBArbService
  • '%WINDIR%\syswow64\net.exe' stop "VMware NAT Service"
Injects code into
the following system processes:
  • %WINDIR%\microsoft.net\framework\v4.0.30319\caspol.exe
Terminates or attempts to terminate
the following system processes:
  • %WINDIR%\microsoft.net\framework\v4.0.30319\caspol.exe
Modifies file system
Creates the following files
  • %TEMP%\killer.bat
  • %TEMP%\ywikoaptapxf.vbs
  • %ALLUSERSPROFILE%\local\.c4d1664ef40ce18f8d41
  • %WINDIR%\microsoft.net\framework\v4.0.30319\ids.txt
  • C:\.c4d1664ef40ce18f8d41
  • D:\.c4d1664ef40ce18f8d41
  • z:\.c4d1664ef40ce18f8d41
  • D:\$recycle.bin\.c4d1664ef40ce18f8d41
  • z:\system volume information\.c4d1664ef40ce18f8d41
  • C:\$recycle.bin\.c4d1664ef40ce18f8d41
  • C:\how to back your files.txt
  • D:\system volume information\.c4d1664ef40ce18f8d41
  • <Current directory>\.c4d1664ef40ce18f8d41
Sets the 'hidden' attribute to the following files
  • %ALLUSERSPROFILE%\local\.c4d1664ef40ce18f8d41
  • C:\.c4d1664ef40ce18f8d41
  • <Drive name for removable media>:\.c4d1664ef40ce18f8d41
  • D:\.c4d1664ef40ce18f8d41
  • z:\.c4d1664ef40ce18f8d41
  • z:\system volume information\.c4d1664ef40ce18f8d41
  • D:\$recycle.bin\.c4d1664ef40ce18f8d41
  • C:\$recycle.bin\.c4d1664ef40ce18f8d41
  • D:\system volume information\.c4d1664ef40ce18f8d41
  • <Current directory>\.c4d1664ef40ce18f8d41
Moves itself
  • from <Full path to file> to <Full path to file>.globeimposter-alpha865qqz
Miscellaneous
Searches for the following windows
  • ClassName: '' WindowName: ''
Creates and executes the following
  • '%WINDIR%\syswow64\wscript.exe' "%TEMP%\Ywikoaptapxf.vbs"
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\killer.bat" "' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\killer.bat" "
  • '%WINDIR%\syswow64\sc.exe' delete qemu-ga
  • '%WINDIR%\syswow64\sc.exe' delete SPAdminV4
  • '%WINDIR%\syswow64\sc.exe' delete "wanxiao-monitor"
  • '%WINDIR%\syswow64\sc.exe' delete VGAuthService
  • '%WINDIR%\syswow64\sc.exe' delete wwbizsrv
  • '%WINDIR%\syswow64\sc.exe' delete ProjectQueueService16
  • '%WINDIR%\syswow64\sc.exe' delete MCService
  • '%WINDIR%\syswow64\net1.exe' stop MSComplianceAudit
  • '%WINDIR%\syswow64\net1.exe' stop Apache2.2
  • '%WINDIR%\syswow64\net1.exe' stop wanxiao-monitor
  • '%WINDIR%\syswow64\sc.exe' delete UIODetect
  • '%WINDIR%\syswow64\sc.exe' delete VMTools
  • '%WINDIR%\syswow64\sc.exe' delete JhTask
  • '%WINDIR%\syswow64\sc.exe' delete "ZTE FileTranS"
  • '%WINDIR%\syswow64\sc.exe' delete XT800Service_Personal
  • '%WINDIR%\syswow64\net1.exe' stop UFIDAWebService
  • '%WINDIR%\syswow64\net1.exe' stop XenSvc
  • '%WINDIR%\syswow64\net1.exe' stop VMAuthdService
  • '%WINDIR%\syswow64\sc.exe' delete WebAttendServer
  • '%WINDIR%\syswow64\sc.exe' delete MSSQLServerOLAPService
  • '%WINDIR%\syswow64\sc.exe' delete "ZTE USBIP Client"
  • '%WINDIR%\syswow64\sc.exe' delete RTCCDR
  • '%WINDIR%\syswow64\sc.exe' delete ImeDictUpdateService
  • '%WINDIR%\syswow64\sc.exe' delete TCPIDDAService
  • '%WINDIR%\syswow64\sc.exe' delete QcSoftService
  • '%WINDIR%\syswow64\sc.exe' delete "ZTE USBIP Client Guard"
  • '%WINDIR%\syswow64\sc.exe' delete ProjectEventService16
  • '%WINDIR%\syswow64\sc.exe' delete RTCDATAMCU
  • '%WINDIR%\syswow64\sc.exe' delete MSDTC
  • '%WINDIR%\syswow64\net1.exe' stop mysqltransport
  • '%WINDIR%\syswow64\sc.exe' delete MMRHookService
  • '%WINDIR%\syswow64\sc.exe' delete OSearch16
  • '%WINDIR%\syswow64\sc.exe' delete "UWS HiPriv Services"
  • '%WINDIR%\syswow64\net1.exe' stop VMnetDHCP
  • '%WINDIR%\syswow64\net1.exe' stop FirebirdGuardianDeafaultInstance
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeCompliance
  • '%WINDIR%\syswow64\sc.exe' delete "vm-agent"
  • '%WINDIR%\syswow64\sc.exe' delete RabbitMQ
  • '%WINDIR%\syswow64\sc.exe' delete kbasesrv
  • '%WINDIR%\syswow64\sc.exe' delete SPTraceV4
  • '%WINDIR%\syswow64\sc.exe' delete "Kiwi Syslog Server"
  • '%WINDIR%\syswow64\sc.exe' delete VMwareHostd
  • '%WINDIR%\syswow64\net1.exe' stop WebAttendServer
  • '%WINDIR%\syswow64\sc.exe' delete VMAuthdService
  • '%WINDIR%\syswow64\net1.exe' stop DellDRLogSvc
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeAntispamUpdate
  • '%WINDIR%\syswow64\sc.exe' delete ZTEVdservice
  • '%WINDIR%\syswow64\sc.exe' delete SPTimerV4
  • '%WINDIR%\syswow64\sc.exe' delete "Flash Helper Service"
  • '%WINDIR%\syswow64\sc.exe' delete VMUSBArbService
  • '%WINDIR%\syswow64\sc.exe' delete TeamViewer
  • '%WINDIR%\syswow64\sc.exe' delete AlibabaProtect
  • '%WINDIR%\syswow64\sc.exe' delete SPSearchHostController
  • '%WINDIR%\syswow64\sc.exe' delete allpass_redisservice_port21160
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeADTopology
  • '%WINDIR%\syswow64\net1.exe' stop "Synology Drive VSS Service x64"
  • '%WINDIR%\syswow64\sc.exe' delete ReportServer
  • '%WINDIR%\syswow64\net1.exe' stop Apache2.4
  • '%WINDIR%\syswow64\net1.exe' stop xenlite
  • '%WINDIR%\syswow64\net1.exe' stop VMUSBArbService
  • '%WINDIR%\syswow64\sc.exe' delete ftnlsv3
  • '%WINDIR%\syswow64\sc.exe' delete REPLICA
  • '%WINDIR%\syswow64\sc.exe' delete OracleOraDb11g_home1ClrAgent
  • '%WINDIR%\syswow64\net1.exe' stop UIODetect
  • '%WINDIR%\syswow64\net1.exe' stop HaoZipSvc
  • '%WINDIR%\syswow64\net1.exe' stop U8WorkerService1
  • '%WINDIR%\syswow64\sc.exe' delete "DAService_TCP"
  • '%WINDIR%\syswow64\sc.exe' delete "XT800Service_Personal"
  • '%WINDIR%\syswow64\sc.exe' delete MSCRMAsyncService
  • '%WINDIR%\syswow64\sc.exe' delete "UWS LoPriv Services"
  • '%WINDIR%\syswow64\cmd.exe' /c "color e & @taskkill /IM VBoxSDS.exe /F & @taskkill /IM mysqld.exe /F & @taskkill /IM TeamViewer_Service.exe /F & @taskkill /IM TeamViewer.exe /F & @taskkill /IM CasLicenceServer.exe /F & @t...
  • '%WINDIR%\syswow64\sc.exe' delete "eCard-TTransServer"
  • '%WINDIR%\syswow64\cmd.exe' /c "color e & @taskkill /IM BackupExec.exe /F & @taskkill /IM Att.exe /F & @taskkill /IM mdm.exe /F & @taskkill /IM BackupExecManagementService.exe /F & @taskkill /IM bengine.exe /F & @taskkill...
  • '%WINDIR%\syswow64\cmd.exe' /c "color e & @taskkill /IM ThunderPlatform.exe /F & @taskkill /IM iexplore.exe /F & @taskkill /IM vm-agent.exe /F & @taskkill /IM vm-agent-daemon.exe /F & @taskkill /IM eSightService.exe /F & ...
  • '%WINDIR%\syswow64\cmd.exe' /c "color e & @taskkill /IM sqlservr.exe /F & @taskkill /IM httpd.exe /F & @taskkill /IM java.exe /F & @taskkill /IM fdhost.exe /F & @taskkill /IM fdlauncher.exe /F & @taskkill /IM reportingser...
  • '%WINDIR%\syswow64\cmd.exe' /c "color a & @net stop UIODetect & @net stop VMwareHostd & @net stop TeamViewer8 & @net stop VMUSBArbService & @net stop VMAuthdService & @net stop wanxiao-monitor & @net stop WebAttendServer ...
  • '%WINDIR%\syswow64\cmd.exe' /c "color a & @net stop HaoZipSvc & @net stop "igfxCUIService2.0.0.0" & @net stop Realtek11nSU & @net stop xenlite & @net stop XenSvc & @net stop Apache2.2 & @net stop "Synology Drive VSS Servi...
  • '%WINDIR%\syswow64\cmd.exe' /c "color a & @net stop U8WorkerService1 & @net stop U8WorkerService2 & @net stop "memcached Server" & @net stop Apache2.4 & @net stop UFIDAWebService & @net stop MSComplianceAudit & @net stop ...
  • '%WINDIR%\syswow64\cmd.exe' /c "color b & @taskkill /IM ReportingServicesService.exe /F & @sc delete "SQL Server Reporting Services" & @sc delete MSSQLFDLauncher & @taskkill /IM U8CEServer.exe /F & @taskkill /IM ServerNT....
  • '%WINDIR%\syswow64\cmd.exe' /c "@color b & sc delete MSCRMAsyncService & @sc delete REPLICA & @sc delete RTCATS & @sc delete RTCAVMCU & @sc delete RtcQms & @sc delete RTCMEETINGMCU & @sc delete RTCIMMCU & @sc delete RTCDA...
  • '%WINDIR%\syswow64\cmd.exe' /c "color b & @sc delete "UWS LoPriv Services" & @sc delete ftnlsv3 & @sc delete ftnlses3 & @sc delete FxService & @sc delete "UtilDev Web Server Pro" & @sc delete ftusbrdwks & @sc delete ftusb...
  • '%WINDIR%\syswow64\cmd.exe' /c "color b & @sc delete OracleOraDb11g_home1ClrAgent & @sc delete OracleOraDb11g_home1TNSListener & @sc delete OracleVssWriterORCL & @sc delete OracleServiceORCL & @sc delete aspnet_state @sc ...
  • '%WINDIR%\syswow64\cmd.exe' /c "color b & @sc delete "DAService_TCP" & @sc delete "eCard-TTransServer" & @sc delete eCardMPService & @sc delete EnergyDataService & @sc delete UI0Detect & @sc delete K3MobileService & @sc d...
  • '%WINDIR%\syswow64\cmd.exe' /c "color b & @sc delete "XT800Service_Personal" & @sc delete SQLSERVERAGENT & @sc delete SQLWriter & @sc delete SQLBrowser & @sc delete MSSQLFDLauncher & @sc delete MSSQLSERVER & @sc delete Qc...
  • '%WINDIR%\syswow64\cmd.exe' /c "color b & @taskkill /IM tomcat9.exe /F & @sc delete "SiebelApplicationContainer_Siebel_Home_d_Siebel_sai" & @taskkill /IM ReportingServicesService.exe /F & @sc delete "ReportServer$SQLEXPRE...
  • '%WINDIR%\syswow64\cmd.exe' /c "color e & @taskkill /IM pg_ctl.exe /F & @taskkill /IM rcrelay.exe /F & @taskkill /IM SogouImeBroker.exe /F & @taskkill /IM CCenter.exe /F & @taskkill /IM ScanFrm.exe /F & @taskkill /IM d_ma...
  • '%WINDIR%\syswow64\sc.exe' delete ftnlses3
  • '%WINDIR%\syswow64\sc.exe' delete SQLSERVERAGENT
  • '%WINDIR%\syswow64\sc.exe' delete RTCATS
  • '%WINDIR%\syswow64\sc.exe' delete K3MobileService
  • '%WINDIR%\syswow64\sc.exe' delete OracleServiceORCL
  • '%WINDIR%\syswow64\sc.exe' delete MSSQLSERVER
  • '%WINDIR%\syswow64\sc.exe' delete ftusbrdsrv
  • '%WINDIR%\syswow64\sc.exe' delete RTCIMMCU
  • '%WINDIR%\syswow64\cmd.exe' /c @echo off sc config browser sc config browser start=enabled vssadmin delete shadows /all /quiet sc stop vss sc config vss start=disabled sc stop MongoDB sc config MongoDB start=disabl...
  • '%WINDIR%\syswow64\net1.exe' stop Realtek11nSU
  • '%WINDIR%\syswow64\net1.exe' stop "memcached Server"
  • '%WINDIR%\syswow64\net1.exe' stop TeamViewer8
  • '%WINDIR%\syswow64\sc.exe' delete aspnet_state @sc delete Redis
  • '%WINDIR%\syswow64\sc.exe' delete RTCMEETINGMCU
  • '%WINDIR%\syswow64\sc.exe' delete ftusbrdwks
  • '%WINDIR%\syswow64\sc.exe' delete MSSQLFDLauncher
  • '%WINDIR%\syswow64\sc.exe' delete UI0Detect
  • '%WINDIR%\syswow64\sc.exe' delete RtcQms
  • '%WINDIR%\syswow64\sc.exe' delete OracleOraDb11g_home1TNSListener
  • '%WINDIR%\syswow64\sc.exe' delete "UtilDev Web Server Pro"
  • '%WINDIR%\syswow64\sc.exe' delete EnergyDataService
  • '%WINDIR%\syswow64\sc.exe' delete SQLBrowser
  • '%WINDIR%\syswow64\sc.exe' delete OracleVssWriterORCL
  • '%WINDIR%\syswow64\sc.exe' delete RTCAVMCU
  • '%WINDIR%\syswow64\sc.exe' delete FxService
  • '%WINDIR%\microsoft.net\framework\v4.0.30319\caspol.exe'
  • '%WINDIR%\syswow64\sc.exe' delete eCardMPService
  • '%WINDIR%\syswow64\sc.exe' delete SQLWriter
  • '%WINDIR%\syswow64\net1.exe' stop VMwareHostd
  • '%WINDIR%\syswow64\net1.exe' stop "igfxCUIService2.0.0.0"
  • '%WINDIR%\syswow64\net1.exe' stop U8WorkerService2
  • '%WINDIR%\syswow64\sc.exe' delete "AHS SERVICE"
  • '%WINDIR%\syswow64\sc.exe' delete VmAgentDaemon

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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  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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