Ransom.BAT.CORTEX.B

 Analysis by: Janus Agcaoili

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:

  • 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

File Size:

15,072 bytes

File Type:

BAT

Memory Resident:

No

Initial Samples Received Date:

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:

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

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.980.01

FIRST VSAPI PATTERN DATE:

04 May 2019

VSAPI OPR PATTERN File:

14.981.00

VSAPI OPR PATTERN Date:

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:

[ Learn More ]
  1. 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.
  2. 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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