Ransom.BAT.CORTEX.B
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This Ransomware may arrive bundled with malware packages as a malware component. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It is used to load and execute a file.
TECHNICAL DETAILS
15,072 bytes
BAT
No
04 May 2019
Arrival Details
This Ransomware may arrive bundled with malware packages as a malware component.
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Process Termination
This Ransomware terminates the following services if found on the affected system:
- AcronisAgent
- AcrSch2Svc
- ARSM
- BackupExecAgentAccelerator
- BackupExecAgentBrowser
- BackupExecDeviceMediaService
- BackupExecJobEngine
- BackupExecManagementService
- BackupExecRPCService
- BackupExecVSSProvider
- bedbg
- DCAgent
- EPSecurityService
- EPUpdateService
- EraserSvc11710
- EsgShKernel
- FA_Scheduler
- IISAdmin
- IMAP4Svc
- macmnsvc
- masvc
- MBAMService
- mfemms
- mfevtp
- MMS
- mozyprobackup
- MsDtsServer
- MsDtsServer100
- MsDtsServer110
- MSExchangeES
- MSExchangeIS
- MSExchangeMGMT
- MSExchangeMTA
- MSExchangeSA
- MSExchangeSRS
- MSOLAP$SQL_2008
- MSOLAP$SYSTEM_BGC
- MSOLAP$TPS
- MSOLAP$TPSAMA
- MSSQL$BKUPEXEC
- MSSQL$ECWDB2
- MSSQL$PRACTICEMGT
- MSSQL$PRACTTICEBGC
- MSSQL$PROFXENGAGEMENT
- MSSQL$SBSMONITORING
- MSSQL$SHAREPOINT
- MSSQL$SQL_2008
- MSSQL$SYSTEM_BGC
- MSSQL$TPS
- MSSQL$TPSAMA
- MSSQL$VEEAMSQL2008R2
- MSSQL$VEEAMSQL2012
- MSSQLFDLauncher
- MSSQLFDLauncher$PROFXENGAGEMENT
- MSSQLFDLauncher$SBSMONITORING
- MSSQLFDLauncher$SHAREPOINT
- MSSQLFDLauncher$SQL_2008
- MSSQLFDLauncher$SYSTEM_BGC
- MSSQLFDLauncher$TPS
- MSSQLFDLauncher$TPSAMA
- MSSQLSERVER
- MSSQLServerADHelper100
- MSSQLServerOLAPService
- MySQL57
- ntrtscan
- OracleClientCache80
- PDVFSService
- POP3Svc
- ReportServer
- ReportServer$SQL_2008
- ReportServer$SYSTEM_BGC
- ReportServer$TPS
- ReportServer$TPSAMA
- RESvc
- sacsvr
- SamSs
- SAVSAMBervice
- SAVService
- SDRSVC
- SepMasterService
- ShMonitor
- Smcinst
- SmcService
- SMTPSvc
- SNAC
- SntpService
- sophossps
- SQLAgent$BKUPEXEC
- SQLAgent$ECWDB2
- SQLAgent$PRACTTICEBGC
- SQLAgent$PRACTTICEMGT
- SQLAgent$PROFXENGAGEMENT
- SQLAgent$SBSMONITORING
- SQLAgent$SHAREPOINT
- SQLAgent$SQL_2008
- SQLAgent$SYSTEM_BGC
- SQLAgent$TPS
- SQLAgent$TPSAMA
- SQLAgent$VEEAMSQL2008R2
- SQLAgent$VEEAMSQL2012
- SQLBrowser
- SQLSafeOLRService
- SQLSERVERAGENT
- SQLTELEMETRY
- SQLTELEMETRY$ECWDB2
- SQLWriter
- "Acronis VSS Provider"
- "Enterprise Client Service"
- "SQLsafe Backup Service"
- "SQLsafe Filter Service"
- "Symantec System Recovery"
- "Veeam Backup Catalog Data Service"
- SstpSvc
- svcGenericHost
- swi_filter
- swi_service
- swi_update_64
- TmCCSF
- tmlisten
- TrueKey
- TrueKeyScheduler
- TrueKeyServiceHelper
- UI0Detect
- VeeamBackupSvc
- VeeamBrokerSvc
- VeeamCatalogSvc
- VeeamCloudSvc
- VeeamDeploymentService
- VeeamDeploySvc
- VeeamEnterpriseManagerSvc
- VeeamMountSvc
- VeeamNFSSvc
- VeeamRESTSvc
- VeeamTransportSvc
- W3Svc
- wbengine
- WRSVC
- MSSQL$VEEAMSQL2008R2
- SQLAgent$VEEAMSQL2008R2
- VeeamHvIntegrationSvc
- swi_update
- SQLAgent$CXDB
- SQLAgent$CITRIX_METAFRAME
- "SQL Backups"
- MSSQL$PROD
- "Zoolz 2 Service"
- MSSQLServerADHelper
- SQLAgent$PROD
- msftesql$PROD
- NetMsmqActivator
- EhttpSrv
- ekrn
- ESHASRV
- MSSQL$SOPHOS
- SQLAgent$SOPHOS
- AVP
- klnagent
- MSSQL$SQLEXPRESS
- SQLAgent$SQLEXPRESS
- wbengine
- kavfsslp
- KAVFSGT
- KAVFS
- mfefire
- mfewc
- Telemetryserver
- WdNisSvc
- WinDefend
- MSSQLFDLauncher$ITRIS
- MSSQL$EPOSERVER
- MSSQL$ITRIS
- SQLAgent$EPOSERVER
- SQLAgent$ITRIS
- SQLTELEMETRY$ITRIS
- MsDtsServer130
- SSISTELEMETRY130
- MSSQLLaunchpad$ITRIS
- BITS
- BrokerInfrastructure
- epag
- EPIntegrationService
- EPProtectedService
- epredline
- EPSecurityService
- EPUpdateService
- TmPfw
- SentinelAgent
- SentinelHelperService
- LogProcessorService
- SentinelStaticEngine
It terminates the following processes if found running in the affected system's memory:
- zoolz.exe
- agntsvc.exe
- dbeng50.exe
- dbsnmp.exe
- encsvc.exe
- excel.exe
- firefoxconfig.exe
- infopath.exe
- isqlplussvc.exe
- msaccess.exe
- msftesql.exe
- mspub.exe
- mydesktopqos.exe
- mydesktopservice.exe
- mysqld.exe
- mysqld-nt.exe
- mysqld-opt.exe
- ocautoupds.exe
- ocomm.exe
- ocssd.exe
- onenote.exe
- oracle.exe
- outlook.exe
- powerpnt.exe
- sqbcoreservice.exe
- sqlagent.exe
- sqlbrowser.exe
- sqlservr.exe
- sqlwriter.exe
- steam.exe
- synctime.exe
- tbirdconfig.exe
- thebat.exe
- thebat64.exe
- thunderbird.exe
- visio.exe
- winword.exe
- wordpad.exe
- xfssvccon.exe
- tmlisten.exe
- PccNTMon.exe
- CNTAoSMgr.exe
- Ntrtscan.exe
- mbamtray.exe
Other Details
This Ransomware is used to load and execute the following file:
- %WINDOWS%\Temp\winnit.exe {B64 encoded string} <- detected as Ransom.Win32.CORTEX.A
It does the following:
- Disables the start of the following services:
- SentinelAgent
- SentinelHelperService
- LogProcessorService
- SentinelStaticEngine
- TmPfw
- EPSecurityService
- EPUpdateService
- epredline
- EPProtectedService
- EPIntegrationService
- epag
- BITS
- BrokerInfrastructure
- EPSecurityService
- SQLAgent$SQLEXPRESS
- MSSQL$SQLEXPRESS
- klnagent
- AVP
- SQLAgent$SOPHOS
- MSSQL$SOPHOS
- EhttpSrv
- ekrn
- ESHASRV
- NetMsmqActivator
- msftesql$PROD
- SQLAgent$PROD
- MSSQLServerADHelper
- "Zoolz 2 Service"
- MSSQL$PROD
- "SQL Backups"
- SQLAgent$CITRIX_METAFRAME
- "Acronis VSS Provider"
- "Enterprise Client Service"
- "SQLsafe Backup Service"
- "SQLsafe Filter Service"
- "Symantec System Recovery"
- "Veeam Backup Catalog Data Service"
- AcronisAgent
- AcrSch2Svc
- Antivirus
- ARSM
- BackupExecAgentAccelerator
- BackupExecAgentBrowser
- BackupExecDeviceMediaService
- BackupExecJobEngine
- BackupExecManagementService
- BackupExecRPCService
- BackupExecVSSProvider
- bedbg
- DCAgent
- EPSecurityService
- EPUpdateService
- EraserSvc11710
- EsgShKernel
- FA_Scheduler
- IISAdmin
- IMAP4Svc
- macmnsvc
- masvc
- MBAMService
- MBEndpointAgent
- mfemms
- mfevtp
- MMS
- mozyprobackup
- MsDtsServer
- MsDtsServer100
- MsDtsServer110
- MSExchangeES
- MSExchangeIS
- MSExchangeMGMT
- MSExchangeMTA
- MSExchangeSA
- MSExchangeSRS
- MSOLAP$SQL_2008
- MSOLAP$SYSTEM_BGC
- MSOLAP$TPS
- MSOLAP$TPSAMA
- MSSQL$BKUPEXEC
- MSSQL$ECWDB2
- MSSQL$PRACTICEMGT
- MSSQL$PRACTTICEBGC
- MSSQL$PROFXENGAGEMENT
- MSSQL$SBSMONITORING
- MSSQL$SHAREPOINT
- MSSQL$SQL_2008
- MSSQL$SYSTEM_BGC
- MSSQL$TPS
- MSSQL$TPSAMA
- MSSQL$VEEAMSQL2008R2
- MSSQL$VEEAMSQL2012
- MSSQLFDLauncher
- MSSQLFDLauncher$PROFXENGAGEMENT
- MSSQLFDLauncher$SBSMONITORING
- MSSQLFDLauncher$SHAREPOINT
- MSSQLFDLauncher$SQL_2008
- MSSQLFDLauncher$SYSTEM_BGC
- MSSQLFDLauncher$TPS
- MSSQLFDLauncher$TPSAMA
- MSSQLSERVER
- MSSQLServerADHelper100
- MSSQLServerOLAPService
- MySQL57
- ntrtscan
- OracleClientCache80
- PDVFSService
- POP3Svc
- ReportServer
- ReportServer$SQL_2008
- ReportServer$SYSTEM_BGC
- ReportServer$TPS
- ReportServer$TPSAMA
- RESvc
- sacsvr
- SamSs
- SAVSAMBervice
- SAVService
- EPUpdateService
- MSSQLLaunchpad$ITRIS
- SSISTELEMETRY130
- MsDtsServer130
- SQLTELEMETRY$ITRIS
- SQLAgent$ITRIS
- SQLAgent$EPOSERVER
- MSSQL$ITRIS
- MSSQL$EPOSERVER
- MSSQLFDLauncher$ITRIS
- MCAFEEEVENTPARSERSRV
- MCAFEETOMCATSRV530
- WdNisSvc
- WinDefend
- Telemetryserver
- mfewc
- mfefire
- KAVFS
- KAVFSGT
- kavfsslp
- wbengine
- SDRSVC
- SepMasterService
- ShMonitor
- Smcinst
- SmcService
- SMTPSvc
- SNAC
- SntpService
- SQLAgent$BKUPEXEC
- SQLAgent$ECWDB2
- SQLAgent$PRACTTICEBGC
- SQLAgent$PRACTTICEMGT
- SQLAgent$PROFXENGAGEMENT
- SQLAgent$SBSMONITORING
- SQLAgent$SHAREPOINT
- SQLAgent$SQL_2008
- SQLAgent$SYSTEM_BGC
- SQLAgent$TPS
- SQLAgent$TPSAMA
- SQLAgent$VEEAMSQL2008R2
- SQLAgent$VEEAMSQL2012
- SQLBrowser
- SQLSafeOLRService
- SQLSERVERAGENT
- SQLTELEMETRY
- SQLTELEMETRY$ECWDB2
- SQLWriter
- SstpSvc
- svcGenericHost
- swi_filter
- swi_service
- swi_update_64
- TmCCSF
- tmlisten
- TrueKey
- TrueKeyScheduler
- TrueKeyServiceHelper
- UI0Detect
- VeeamBackupSvc
- VeeamBrokerSvc
- VeeamCatalogSvc
- VeeamCloudSvc
- VeeamDeploymentService
- VeeamDeploySvc
- VeeamEnterpriseManagerSvc
- VeeamMountSvc
- VeeamNFSSvc
- VeeamRESTSvc
- VeeamTransportSvc
- W3Svc
- wbengine
- WRSVC
- MSSQL$VEEAMSQL2008R2
- SQLAgent$VEEAMSQL2008R2
- VeeamHvIntegrationSvc
- swi_update
- SQLAgent$CXDB
- Stops all IIS services
SOLUTION
9.850
14.980.01
04 May 2019
14.981.00
05 May 2019
Step 1
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 2
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 3
Terminate the malware/grayware/spyware process:
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Scan your computer with your Trend Micro product to delete files detected as Ransom.BAT.CORTEX.B. 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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