Ransom.Win32.SADOGO.A
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It deletes itself after execution.
It drops files as ransom note.
TECHNICAL DETAILS
Arrival Details
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Ransomware adds the following processes:
- vssadmin delete shadows /all /quiet
Process Termination
This Ransomware terminates the following services if found on the affected system:
- vmickvpexchange
- vmicguestinterface
- vmicshutdown
- vmicheartbeat
- vmicrdv
- storflt
- vmictimesync
- vmicvss
- MSSQLFDLauncher
- MSSQLSERVER
- SQLSERVERAGENT
- SQLBrowser
- SQLTELEMETRY
- MsDtsServer130
- SSISTELEMETRY130
- SQLWriter
- MSSQL
- SQLAgent
- MSSQLServerADHelper100
- MSSQLServerOLAPService
- MsDtsServer100
- ReportServer
- TMBMServer
- postgresql-x64-9.4
- WRSVC
- ekrn
- klim6
- AVP18.0.0
- KLIF
- klpd
- klflt
- klbackupdisk
- klbackupflt
- klkbdflt
- klmouflt
- klhk
- KSDE1.0.0
- kltap
- TmFilter
- TMLWCSService
- tmusa
- TmPreFilter
- TMSmartRelayService
- TMiCRCScanService
- VSApiNt
- TmCCSF
- tmlisten
- TmProxy
- ntrtscan
- ofcservice
- UniFi
- armsvc
- IntelCpHDCPSvc
- OfficeClickToRun
- DellOSDService
- DymoPnpService
- Agent
- FJTWMKSV
- IPROSetMonitor
- IRMTService
- MBCloudEA
- QBCFMonitorService
- QBIDPService
- RstMwService
- TeamViewer_Service
- dasHost
- IntelCpHeciSvc
- RAVBg64
- vds
- unsecapp
- TodoBackupService
- MediaButtons
- IAStorDataMgrSvc
- jhi_service
- LMS
- DDVDataCollector
- DDVCollectorSvcApi
- TeamViewer
- tv_w32
- tv_x64
- Microsoft.Photos
It terminates the following processes if found running in the affected system's memory:
- sqlbrowser.exe
- sqlwriter.exe
- sqlservr.exe
- msmdsrv.exe
- MsDtsSrvr.exe
- sqlceip.exe
- fdlauncher.exe
- Ssms.exe
- SQLAGENT.exe
- fdhost.exe
- fdlauncher.exe
- sqlservr.exe
- ReportingServicesService.exe
- msftesql.exe
- pg_ctl.exe
- postgres.exe
- UniFi.exe
- armsvc.exe
- IntelCpHDCPSvc.exe
- OfficeClickToRun.exe
- DellOSDService.exe
- DymoPnpService.exe
- Agent.exe
- FJTWMKSV.exe
- IPROSetMonitor.exe
- IRMTService.exe
- MBCloudEA.exe
- QBCFMonitorService.exe
- QBIDPService.exe
- RstMwService.exe
- TeamViewer_Service.exe
- dasHost.exe
- IntelCpHeciSvc.exe
- RAVBg64.exe
- RAVBg64.exe
- vds.exe
- unsecapp.exe
- TodoBackupService.exe
- MediaButtons.exe
- IAStorDataMgrSvc.exe
- jhi_service.exe
- LMS.exe
- .DDVDataCollector.exe
- DDVCollectorSvcApi.exe
- TeamViewer.exe
- tv_w32.exe
- tv_x64.exe
- Microsoft.Photos.exe
- MicrosoftEdge.exe
- ApplicationFrameHost.exe
- browser_broker.exe
- MicrosoftEdgeSH.exe
- MicrosoftEdgeCP.exe
- RtkNGUI64.exe
- RAVBg64.exe
- WavesSvc64.exe
- OneDrive.exe
- DYMO.DLS.Printing.Host.exe
- FtLnSOP.exe
- FjtwMkup.exe
- FTPWREVT.exe
- FTErG.ing.Host.exe
- FtLnSOP.exe
- FjtwMkup.exe
- FTPWREVT.exe
- FTErG
- vmickvpexchange
- vmicguestinterface
- vmicshutdown
- vmicheartbeat
- vmicrdv
- storflt
- vmictimesync
- vmicvss
- MSSQLFDLauncher
- MSSQLSERVER
- SQLSERVERAGENT
- SQLBrowser
- SQLTELEMETRY
- MsDtsServer130
- SSISTELEMETRY130
- SQLWriter
- MSSQL
- SQLAgent
- MSSQLServerADHelper100
- MSSQLServerOLAPService
- MsDtsServer100
- ReportServer
- TMBMServer
- postgresql-x64-9.4
- WRSVC
- ekrn
- klim6
- AVP18.0.0
- KLIF
- klpd
- klflt
- klbackupdisk
- klbackupflt
- klkbdflt
- klmouflt
- klhk
- KSDE1.0.0
- kltap
- TmFilter
- TMLWCSService
- tmusa
- TmPreFilter
- TMSmartRelayService
- TMiCRCScanService
- VSApiNt
- TmCCSF
- tmlisten
- TmProxy
- ntrtscan
- ofcservice
- UniFi
- armsvc
- IntelCpHDCPSvc
- OfficeClickToRun
- DellOSDService
- DymoPnpService
- Agent
- FJTWMKSV
- IPROSetMonitor
- IRMTService
- MBCloudEA
- QBCFMonitorService
- QBIDPService
- RstMwService
- TeamViewer_Service
- dasHost
- IntelCpHeciSvc
- RAVBg64
- vds
- unsecapp
- TodoBackupService
- MediaButtons
- IAStorDataMgrSvc
- jhi_service
- LMS
- DDVDataCollector
- DDVCollectorSvcApi
- TeamViewer
- tv_w32
- tv_x64
- Microsoft.Photos
- ataCollector
- DDVCollectorSvcApi
- TeamViewer
- tv_w32
- tv_x64
- Microsoft.Photo
Information Theft
This Ransomware gathers the following data:
- Computer Name
- Memory Information
Other Details
This Ransomware deletes itself after execution.
Ransomware Routine
This Ransomware avoids encrypting files with the following strings in their file path:
- Windows
- System Volume Information
It appends the following extension to the file name of the encrypted files:
- .encrypted
It drops the following file(s) as ransom note:
- {Encypted Directory}\readme.txt
It leaves text files that serve as ransom notes containing the following text:
SOLUTION
Step 1
Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:
- Troj.Win32.TRX.XXPE50FFF034
Step 2
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 3
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 4
Restart in Safe Mode
Step 5
Search and delete this file
- {Encrypted Directory}\readme.txt
Step 6
Restore encrypted files from backup.
Step 7
Scan your computer with your Trend Micro product to delete files detected as Ransom.Win32.SADOGO.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:
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