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Trojan.Encoder.34149

Added to the Dr.Web virus database: 2021-07-15

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\mscorsvw.exe'
Creates the following files on removable media
  • <Drive name for removable media>:\.c4d1664ef40ce18f8d41
  • <Drive name for removable media>:\lisp_success.doc
  • <Drive name for removable media>:\applicantform_en.doc
  • <Drive name for removable media>:\february_catalogue__2015.doc
  • <Drive name for removable media>:\ovp25012015.doc
  • <Drive name for removable media>:\sdksampleunprivdeveloper.cer
  • <Drive name for removable media>:\testee.cer
  • <Drive name for removable media>:\testcertificate.cer
  • <Drive name for removable media>:\sdksampleprivdeveloper.cer
  • <Drive name for removable media>:\pmd.cer
  • <Drive name for removable media>:\contoso_1.cer
  • <Drive name for removable media>:\contosoroot.cer
  • <Drive name for removable media>:\dashborder_144.bmp
  • <Drive name for removable media>:\dashborder_96.bmp
  • <Drive name for removable media>:\tileimage.bmp
  • <Drive name for removable media>:\toolbar.bmp
  • <Drive name for removable media>:\dashborder_192.bmp
  • <Drive name for removable media>:\dial.bmp
  • <Drive name for removable media>:\default.bmp
  • <Drive name for removable media>:\correct.avi
  • <Drive name for removable media>:\000814251_video_01.avi
  • <Drive name for removable media>:\delete.avi
  • <Drive name for removable media>:\hanni_umami_chapter.doc
  • <Drive name for removable media>:\508softwareandos.doc
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
  • Windows Defender
Executes the following
  • '%WINDIR%\syswow64\taskkill.exe' /IM VBoxSDS.exe /F
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeADTopology
  • '%WINDIR%\syswow64\net.exe' stop "Synology Drive VSS Service x64"
  • '%WINDIR%\syswow64\net.exe' stop mysqltransport
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeAntispamUpdate
  • '%WINDIR%\syswow64\net.exe' stop DellDRLogSvc
  • '%WINDIR%\syswow64\net.exe' stop VMnetDHCP
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeCompliance
  • '%WINDIR%\syswow64\net.exe' stop FirebirdGuardianDeafaultInstance
  • '%WINDIR%\syswow64\net.exe' stop U8WorkerService2
  • '%WINDIR%\syswow64\net.exe' stop "VMware NAT Service"
  • '%WINDIR%\syswow64\net.exe' stop JWEM3DBAUTORun
  • '%WINDIR%\syswow64\net.exe' stop Tomcat8
  • '%WINDIR%\syswow64\net.exe' stop JWRinfoClientService
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeDelivery
  • '%WINDIR%\syswow64\net.exe' stop TeamViewer
  • '%WINDIR%\syswow64\net.exe' stop JWService
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeDiagnostics
  • '%WINDIR%\syswow64\net.exe' stop QPCore
  • '%WINDIR%\syswow64\net.exe' stop Apache2.2
  • '%WINDIR%\syswow64\net.exe' stop WebAttendServer
  • '%WINDIR%\syswow64\net.exe' stop MSComplianceAudit
  • '%WINDIR%\syswow64\net.exe' stop wanxiao-monitor
  • '%WINDIR%\syswow64\net.exe' stop XenSvc
  • '%WINDIR%\syswow64\taskkill.exe' /IM ThunderPlatform.exe /F
  • '%WINDIR%\syswow64\taskkill.exe' /IM pg_ctl.exe /F
  • '%WINDIR%\syswow64\net.exe' stop UIODetect
  • '%WINDIR%\syswow64\taskkill.exe' /IM sqlservr.exe /F
  • '%WINDIR%\syswow64\net.exe' stop U8WorkerService1
  • '%WINDIR%\syswow64\net.exe' stop HaoZipSvc
  • '%WINDIR%\syswow64\taskkill.exe' /IM BackupExec.exe /F
  • '%WINDIR%\syswow64\taskkill.exe' /IM ReportingServicesService.exe /F
  • '%WINDIR%\syswow64\net.exe' stop Service2
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeDagMgmt
  • '%WINDIR%\syswow64\net.exe' stop VMwareHostd
  • '%WINDIR%\syswow64\net.exe' stop TeamViewer8
  • '%WINDIR%\syswow64\net.exe' stop "memcached Server"
  • '%WINDIR%\syswow64\net.exe' stop Realtek11nSU
  • '%WINDIR%\syswow64\net.exe' stop VMUSBArbService
  • '%WINDIR%\syswow64\net.exe' stop Apache2.4
  • '%WINDIR%\syswow64\net.exe' stop xenlite
  • '%WINDIR%\syswow64\net.exe' stop VMAuthdService
  • '%WINDIR%\syswow64\net.exe' stop UFIDAWebService
  • '%WINDIR%\syswow64\taskkill.exe' /IM DDSoftPwsTomcat9.exe /F
  • '%WINDIR%\syswow64\net.exe' stop "igfxCUIService2.0.0.0"
  • '%WINDIR%\syswow64\net.exe' stop MSExchangeEdgeSync
Injects code into
the following system processes:
  • %WINDIR%\microsoft.net\framework\v4.0.30319\mscorsvw.exe
Modifies file system
Creates the following files
  • C:\users\public\documents\killer.bat
  • %HOMEPATH%\videos\.c4d1664ef40ce18f8d41
  • %HOMEPATH%\voip\how to back your files.txt
  • %HOMEPATH%\voip\.c4d1664ef40ce18f8d41
  • %HOMEPATH%\how to back your files.txt
  • %HOMEPATH%\.c4d1664ef40ce18f8d41
  • C:\users\how to back your files.txt
  • D:\system volume information\.c4d1664ef40ce18f8d41
  • C:\users\.c4d1664ef40ce18f8d41
  • C:\how to back your files.txt
  • C:\$recycle.bin\.c4d1664ef40ce18f8d41
  • D:\$recycle.bin\.c4d1664ef40ce18f8d41
  • C:\.c4d1664ef40ce18f8d41
  • D:\.c4d1664ef40ce18f8d41
  • z:\system volume information\.c4d1664ef40ce18f8d41
  • z:\.c4d1664ef40ce18f8d41
  • %WINDIR%\microsoft.net\framework\v4.0.30319\ids.txt
  • %ALLUSERSPROFILE%\local\.c4d1664ef40ce18f8d41
  • %HOMEPATH%\videos\how to back your files.txt
  • %HOMEPATH%\templates\.c4d1664ef40ce18f8d41
Sets the 'hidden' attribute to the following files
  • %ALLUSERSPROFILE%\local\.c4d1664ef40ce18f8d41
  • z:\.c4d1664ef40ce18f8d41
  • z:\system volume information\.c4d1664ef40ce18f8d41
  • D:\.c4d1664ef40ce18f8d41
  • C:\.c4d1664ef40ce18f8d41
  • D:\$recycle.bin\.c4d1664ef40ce18f8d41
  • C:\$recycle.bin\.c4d1664ef40ce18f8d41
  • <Drive name for removable media>:\.c4d1664ef40ce18f8d41
  • D:\system volume information\.c4d1664ef40ce18f8d41
  • C:\users\.c4d1664ef40ce18f8d41
  • %HOMEPATH%\.c4d1664ef40ce18f8d41
  • %HOMEPATH%\voip\.c4d1664ef40ce18f8d41
  • %HOMEPATH%\videos\.c4d1664ef40ce18f8d41
  • %HOMEPATH%\templates\.c4d1664ef40ce18f8d41
Modifies the following files
Modifies user data files (Trojan.Encoder).
Changes user data files extensions (Trojan.Encoder).
Miscellaneous
Searches for the following windows
  • ClassName: '' WindowName: ''
Creates and executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c, "C:\Users\Public\Documents\killer.bat"' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c, "C:\Users\Public\Documents\killer.bat"
  • '%WINDIR%\syswow64\sc.exe' delete wwbizsrv
  • '%WINDIR%\syswow64\sc.exe' delete TeamViewer
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeAntispamUpdate
  • '%WINDIR%\syswow64\net1.exe' stop DellDRLogSvc
  • '%WINDIR%\syswow64\sc.exe' delete allpass_redisservice_port21160
  • '%WINDIR%\syswow64\sc.exe' delete SPAdminV4
  • '%WINDIR%\syswow64\sc.exe' delete qemu-ga
  • '%WINDIR%\syswow64\sc.exe' delete RabbitMQ
  • '%WINDIR%\syswow64\net1.exe' stop VMnetDHCP
  • '%WINDIR%\syswow64\sc.exe' delete ReportServer
  • '%WINDIR%\syswow64\sc.exe' delete "Flash Helper Service"
  • '%WINDIR%\syswow64\sc.exe' delete SPSearchHostController
  • '%WINDIR%\syswow64\sc.exe' delete VMwareHostd
  • '%WINDIR%\syswow64\sc.exe' delete AlibabaProtect
  • '%WINDIR%\syswow64\net1.exe' stop mysqltransport
  • '%WINDIR%\syswow64\sc.exe' delete VMUSBArbService
  • '%WINDIR%\syswow64\sc.exe' delete ProjectQueueService16
  • '%WINDIR%\syswow64\sc.exe' delete "wanxiao-monitor"
  • '%WINDIR%\syswow64\net1.exe' stop Apache2.2
  • '%WINDIR%\syswow64\sc.exe' delete RTCCDR
  • '%WINDIR%\syswow64\sc.exe' delete XT800Service_Personal
  • '%WINDIR%\microsoft.net\framework\v4.0.30319\mscorsvw.exe'
  • '%WINDIR%\syswow64\sc.exe' delete "ZTE USBIP Client"
  • '%WINDIR%\syswow64\sc.exe' delete VGAuthService
  • '%WINDIR%\syswow64\net1.exe' stop WebAttendServer
  • '%WINDIR%\syswow64\sc.exe' delete MSDTC
  • '%WINDIR%\syswow64\sc.exe' delete ProjectEventService16
  • '%WINDIR%\syswow64\sc.exe' delete MCService
  • '%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 MSExchangeADTopology
  • '%WINDIR%\syswow64\net1.exe' stop "Synology Drive VSS Service x64"
  • '%WINDIR%\syswow64\sc.exe' delete "ZTE FileTranS"
  • '%WINDIR%\syswow64\sc.exe' delete VMAuthdService
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeCompliance
  • '%WINDIR%\syswow64\net1.exe' stop FirebirdGuardianDeafaultInstance
  • '%WINDIR%\syswow64\net1.exe' stop "VMware NAT Service"
  • '%WINDIR%\syswow64\net1.exe' stop JWService
  • '%WINDIR%\syswow64\sc.exe' delete ProjectCalcService16
  • '%WINDIR%\syswow64\sc.exe' delete SSSyncService
  • '%WINDIR%\syswow64\sc.exe' delete OracleJobSchedulerORCL
  • '%WINDIR%\syswow64\sc.exe' delete eSightService
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeDelivery
  • '%WINDIR%\syswow64\net1.exe' stop TeamViewer
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeDiagnostics
  • '%WINDIR%\syswow64\sc.exe' delete IpOverUsbSvc
  • '%WINDIR%\syswow64\net1.exe' stop QPCore
  • '%WINDIR%\syswow64\sc.exe' delete apachezt
  • '%WINDIR%\syswow64\net1.exe' stop Service2
  • '%WINDIR%\syswow64\sc.exe' delete AppFabricCachingService
  • '%WINDIR%\syswow64\sc.exe' delete c2wts
  • '%WINDIR%\syswow64\sc.exe' delete TPlusStdAppService1300
  • '%WINDIR%\syswow64\sc.exe' delete OpenSSHd
  • '%WINDIR%\syswow64\sc.exe' delete MMRHookService
  • '%WINDIR%\syswow64\sc.exe' delete SSMonitorService
  • '%WINDIR%\syswow64\sc.exe' delete SPTimerV4
  • '%WINDIR%\syswow64\sc.exe' delete "vm-agent"
  • '%WINDIR%\syswow64\sc.exe' delete ZTEVdservice
  • '%WINDIR%\syswow64\sc.exe' delete "AHS SERVICE"
  • '%WINDIR%\syswow64\net1.exe' stop JWEM3DBAUTORun
  • '%WINDIR%\syswow64\sc.exe' delete "UWS HiPriv Services"
  • '%WINDIR%\syswow64\sc.exe' delete "Kiwi Syslog Server"
  • '%WINDIR%\syswow64\net1.exe' stop MSExchangeDagMgmt
  • '%WINDIR%\syswow64\sc.exe' delete VmAgentDaemon
  • '%WINDIR%\syswow64\sc.exe' delete "Sense Shield Service"
  • '%WINDIR%\syswow64\sc.exe' delete kbasesrv
  • '%WINDIR%\syswow64\net1.exe' stop Tomcat8
  • '%WINDIR%\syswow64\net1.exe' stop JWRinfoClientService
  • '%WINDIR%\syswow64\sc.exe' delete OSearch16
  • '%WINDIR%\syswow64\sc.exe' delete SPTraceV4
  • '%WINDIR%\syswow64\net1.exe' stop MSComplianceAudit
  • '%WINDIR%\syswow64\sc.exe' delete MSSQL$SQL2008
  • '%WINDIR%\syswow64\net1.exe' stop wanxiao-monitor
  • '%WINDIR%\syswow64\sc.exe' delete VMTools
  • '%WINDIR%\syswow64\sc.exe' delete MSCRMAsyncService
  • '%WINDIR%\syswow64\net1.exe' stop UIODetect
  • '%WINDIR%\syswow64\net1.exe' stop U8WorkerService1
  • '%WINDIR%\syswow64\net1.exe' stop HaoZipSvc
  • '%WINDIR%\syswow64\sc.exe' delete "UWS LoPriv Services"
  • '%WINDIR%\syswow64\sc.exe' delete SQLSERVERAGENT
  • '%WINDIR%\syswow64\sc.exe' delete OracleOraDb11g_home1TNSListener
  • '%WINDIR%\syswow64\net1.exe' stop VMwareHostd
  • '%WINDIR%\syswow64\sc.exe' delete REPLICA
  • '%WINDIR%\syswow64\sc.exe' delete ftnlsv3
  • '%WINDIR%\syswow64\sc.exe' delete SQLWriter
  • '%WINDIR%\syswow64\sc.exe' delete eCardMPService
  • '%WINDIR%\syswow64\sc.exe' delete OracleVssWriterORCL
  • '%WINDIR%\syswow64\sc.exe' delete RTCATS
  • '%WINDIR%\syswow64\sc.exe' delete OracleOraDb11g_home1ClrAgent
  • '%WINDIR%\syswow64\sc.exe' delete "eCard-TTransServer"
  • '%WINDIR%\syswow64\sc.exe' delete "DAService_TCP"
  • '%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 & @taskkill /IM DDSoftPwsTomcat9.exe /F & @taskkill /IM U8SmartClient.exe /F & @taskkill /IM U8SmartClientMonitor.exe /F & @taskkill /IM tomcat9.exe /F & @taskkill /IM SqlManagement...
  • '%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 & @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 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 "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 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 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 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\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 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 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 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 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\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\sc.exe' delete "XT800Service_Personal"
  • '%WINDIR%\syswow64\net1.exe' stop U8WorkerService2
  • '%WINDIR%\syswow64\net1.exe' stop "igfxCUIService2.0.0.0"
  • '%WINDIR%\syswow64\sc.exe' delete ftnlses3
  • '%WINDIR%\syswow64\sc.exe' delete QcSoftService
  • '%WINDIR%\syswow64\sc.exe' delete TCPIDDAService
  • '%WINDIR%\syswow64\sc.exe' delete RTCIMMCU
  • '%WINDIR%\syswow64\sc.exe' delete JhTask
  • '%WINDIR%\syswow64\net1.exe' stop VMAuthdService
  • '%WINDIR%\syswow64\sc.exe' delete RTCMEETINGMCU
  • '%WINDIR%\syswow64\sc.exe' delete ftusbrdwks
  • '%WINDIR%\syswow64\net1.exe' stop UFIDAWebService
  • '%WINDIR%\syswow64\sc.exe' delete MSSQLServerOLAPService
  • '%WINDIR%\syswow64\sc.exe' delete WebAttendServer
  • '%WINDIR%\syswow64\sc.exe' delete RTCDATAMCU
  • '%WINDIR%\syswow64\sc.exe' delete ImeDictUpdateService
  • '%WINDIR%\syswow64\sc.exe' delete "ZTE USBIP Client Guard"
  • '%WINDIR%\syswow64\net1.exe' stop XenSvc
  • '%WINDIR%\syswow64\sc.exe' delete ftusbrdsrv
  • '%WINDIR%\syswow64\net1.exe' stop xenlite
  • '%WINDIR%\syswow64\net1.exe' stop Apache2.4
  • '%WINDIR%\syswow64\net1.exe' stop VMUSBArbService
  • '%WINDIR%\syswow64\sc.exe' delete EnergyDataService
  • '%WINDIR%\syswow64\sc.exe' delete OracleServiceORCL
  • '%WINDIR%\syswow64\sc.exe' delete RTCAVMCU
  • '%WINDIR%\syswow64\net1.exe' stop TeamViewer8
  • '%WINDIR%\syswow64\net1.exe' stop "memcached Server"
  • '%WINDIR%\syswow64\net1.exe' stop Realtek11nSU
  • '%WINDIR%\syswow64\sc.exe' delete SQLBrowser
  • '%WINDIR%\syswow64\sc.exe' delete FxService
  • '%WINDIR%\syswow64\sc.exe' delete UI0Detect
  • '%WINDIR%\syswow64\sc.exe' delete aspnet_state @sc delete Redis
  • '%WINDIR%\syswow64\sc.exe' delete RtcQms
  • '%WINDIR%\syswow64\sc.exe' delete "UtilDev Web Server Pro"
  • '%WINDIR%\syswow64\sc.exe' delete MSSQLSERVER
  • '%WINDIR%\syswow64\sc.exe' delete K3MobileService
  • '%WINDIR%\syswow64\sc.exe' delete MSSQLFDLauncher
  • '%WINDIR%\syswow64\sc.exe' delete UIODetect
  • '%WINDIR%\syswow64\sc.exe' delete MsDtsServer100

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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Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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

Download Dr.Web

Download by serial number

  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.

Find out more about Dr.Web for Android