Ransom.MSIL.TARGETCOMP.THHBBBB

March 17, 2023

Analysis by: Kurt Paolo de Leon

ALIASES:

UDS:Trojan-Downloader.MSIL.PsDownload.gen (KASPERSKY)

PLATFORM:

Windows

OVERALL RISK RATING:

DAMAGE POTENTIAL:

DISTRIBUTION POTENTIAL:

REPORTED INFECTION:

INFORMATION EXPOSURE:

Threat Type: Ransomware
Destructiveness: No
Encrypted:
In the wild: Yes

OVERVIEW

Infection Channel:

Dropped by other malware

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.

TECHNICAL DETAILS

File Size:

9216 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

17 Jan 2023

Payload:

Deletes files, Drops files, Modifies system registry, Terminates processes, Connects to URLs/IPs,, Disables services

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 drops the following copies of itself into the affected system:

%Application Data%\Syfwfpwux\Lcudsgjlb.exe

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It drops and executes the following files:

%User Temp%\Logrpaqfriixribkill$.bat

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following processes:

start https://{BLOCKED}er.org/1NRk35
takeown /f %SystemRoot%\system32\cmd.exe /a
"%System32%\WindowsPowerShell\v1.0\powershell.exe" -Start -Sleep -Seconds 20
cmd /c ""%Temp%\Logrpaqfriixribkill$.bat" "
reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor" /v "AutoRun" /f
"%Program Files%\Internet Explorer\iexplore.exe" -nohome
"%Program Files%\Internet Explorer\iexplore.exe" SCODEF:3332 CREDAT:71937
%Windows%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"%System32%\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
"%System32%\cmd.exe" /c bcdedit /set {current} recoveryenabled no
\sysnative\vssadmin.exe delete shadows /all /quiet
tasklist /fi "imagename eq {String}
- where String:
takeown /f %ProgramData%\ /a
takeown /f %Public User%\ /a
takeown /f %Windows%\SysWOW64\{String} /a
takeown /f %System32%\{String} /a
- where {String}:
cacls {String} /g Administrators:f
cacls {String} /e /g Users:r
cacls {String} /e /g Administrators:r
cacls {String} /e /d SERVICE
cacls {String} /e /d mssqlserver
cacls {String} /e /d "network service"
cacls {String} /e /d system
cacls {String} /e /d mssql$sqlexpress
- where {String}:
cacls %System32%\{String} /g Administrators:f
cacls %System32%\{String} /e /g Users:r
cacls %System32%\{String} /e /g Administrators:r
cacls %System32%\{String} /e /d SERVICE
cacls %System32%\{String} /e /d mssqlserver
cacls %System32%\{String} /e /d "network service"
cacls %System32%\{String} /e /g system:r
cacls %System32%\{String} /e /d mssql$sqlexpress
- where {String}:
cacls %Windows%\SysWOW64\{String} /g Administrators:f
cacls %Windows%\SysWOW64\{String} /e /g Users:r
cacls %Windows%\SysWOW64\{String} /e /g Administrators:r
cacls %Windows%\SysWOW64\{String} /e /d SERVICE
cacls %Windows%\SysWOW64\{String} /e /d mssqlserver
cacls %Windows%\SysWOW64\{String} /e /d "network service"
cacls %Windows%\SysWOW64\{String} /e /g system:r
cacls %Windows%\SysWOW64\{String} /e /d mssql$sqlexpress
- where {String}:
net stop {Stopped Services 1}
%System32%\net1 stop {Stopped Services 2}
sc delete {Services Deleted}
taskkill /f /im {Stopped Process 1}
taskkill /IM {Stopped Process 2} /F
taskkill -f -im {Stopped Process 3}
taskkill /IM {Stopped Process 4} /F

It creates the following folders:

%Application Data%\Syfwfpwux

It is injected into the following processes running in memory:

%Windows%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Autostart Technique

This Ransomware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Lcudsgjlb = %Application Data%\Syfwfpwux\Lcudsgjlb.exe

Other System Modifications

This Ransomware deletes the following files:

%User Temp%\Logrpaqfriixribkill$.bat

It deletes the following registry keys:

SOFTWARE\Raccine

SYSTEM\CurrentControlSet\Services\
EventLog\Application\Raccine

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\vssadmin.exe

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\wmic.exe

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\wbadmin.exe

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\bcdedit.exe

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\powershell.exe

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\diskshadow.exe

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\net.exe

SOFTWARE\Microsoft\Windows NT\
CurrentVersion\Image File Execution Options\taskkill.exe

Process Termination

This Ransomware terminates the following services if found on the affected system:

where {Stopped Services 1}:
- U8WorkerService1
- U8WorkerService2
- "memcached Server"
- Apache2.4
- UFIDAWebService
- MSComplianceAudit
- MSExchangeADTopology
- MSExchangeAntispamUpdate
- MSExchangeCompliance
- MSExchangeDagMgmt
- MSExchangeDelivery
- MSExchangeDiagnostics
- MSExchangeEdgeSync
- MSExchangeFastSearch
- MSExchangeFrontEndTransport
- MSExchangeHM
- MSSQL$SQL2008
- MSExchangeHMRecovery
- MSExchangeImap4
- MSExchangeIMAP4BE
- MSExchangeIS
- MSExchangeMailboxAssistants
- MSExchangeMailboxReplication
- MSExchangeNotificationsBroker
- MSExchangePop3
- MSExchangePOP3BE
- MSExchangeRepl
- MSExchangeRPC
- MSExchangeServiceHost
- MSExchangeSubmission
- MSExchangeThrottling
- MSExchangeTransport
- MSExchangeTransportLogSearch
- MSExchangeUM
- MSExchangeUMCR
- MySQL5_OA
- HaoZipSvc
- Realtek11nSU
- xenlite
- XenSvc
- Apache2.2
- "Synology Drive VSS Service x64"
- DellDRLogSvc
- FirebirdGuardianDeafaultInstance
- JWEM3DBAUTORun
- JWRinfoClientService
- JWService
- Service2
- RapidRecoveryAgent
- FirebirdServerDefaultInstance
- AdobeARMservice
- VeeamCatalogSvc
- VeeanBackupSvc
- VeeamTransportSvc
- TPlusStdAppService1300
- TPlusStdTaskService1300
- TPlusStdUpgradeService1300
- TPlusStdWebService1300
- VeeamNFSSvc
- VeeamDeploySvc
- VeeamCloudSvc
- VeeamMountSvc
- VeeamBrokerSvc
- VeeamDistributionSvc
- tmlisten
- ServiceMid
- 360EntPGSvc
- ClickToRunSvc
- RavTask
- AngelOfDeath
- d_safe
- NFLicenceServer
- "NetVault Process Manager"
- RavService
- DFServ
- IngressMgr
- EvtSys
- K3ClouManager
- NFVPrintServer
- RTCAVMCU
- CobianBackup10
- GNWebService
- Mysoft.SchedulingService
- AgentX
- SentinelKeysServer
- DGPNPSEV
- TurboCRM70
- NFSysService
- U8DispatchService
- NFOTPService
- U8EISService
- U8EncryptService
- U8GCService
- U8KeyManagePool
- U8MPool
- U8SCMPool
- U8SLReportService
- U8TaskService
- U8WebPool
- UFAllNet
- UFReportService
- UTUService"
- UIODetect
- VMwareHostd
- TeamViewer8
- VMUSBArbService
- VMAuthdService
- wanxiao-monitor
- WebAttendServer
- mysqltransport
- VMnetDHCP
- "VMware NAT Service"
- Tomcat8
- TeamViewer
- QPCore
- CASLicenceServer
- CASWebServer
- AutoUpdateService
- "Alibaba Security Aegis Detect Service"
- "Alibaba Security Aegis Update Service"
- "AliyunService"
- CASXMLService
- AGSService
- RapService
- DDNSService
- iNethinkSQLBackupSvc
- CASVirtualDiskService
- CASMsgSrv
- "OracleOraDb10g_homeliSQL*Plus"
- OracleDBConsoleilas
- MySQL
- TPlusStdAppService1220
- TPlusStdTaskService1220
- TPlusStdUpgradeService1220
- K3MobileServiceManage
- "FileZilla Server"
- DDVRulesProcessor
- ImtsEventSvr
- AutoUpdatePatchService
- OMAILREPORT
- "Dell Hardware Support"
- SupportAssistAgent
- K3MMainSuspendService
- KpService
- ceng_web_svc_d
- KugouService
- pcas
- U8SendMailAdmin
- "Bonjour Service"
- "Apple Mobile Device Service"
- "ABBYY.Licensing.FineReader.Professional.12.0""
- MSSQLServerADHelper100
- MSSQL$ISARS
- MSSQL$MSFW
- SQLAgent$ISARS
- SQLAgent$MSFW
- SQLBrowser
- ReportServer$ISARS
- SQLWriter
- WinDefend
- mr2kserv
- MSExchange
- ShadowProtectSvc
- SPAdminV4
- SPTimerV4
- SPTraceV4
- SPUserCodeV4
- SPWriterV4
- SPSearch4
- MSSQLServerADHelper100
- IISADMIN
- firebirdguardiandefaultinstance
- ibmiasrw
- QBCFMonitorService
- QBVSS
- QBPOSDBServiceV12
- "IBM Domino Server (CProgramFilesIBMDominodata)"
- "IBM Domino Diagnostics (CProgramFilesIBMDomino)"
- IISADMIN
- "Simply Accounting Database Connection Manager"
- QuickBooksDB1
- QuickBooksDB2
- QuickBooksDB3
- QuickBooksDB4
- QuickBooksDB5
where {Stopped Services 2}:
- U8WorkerService1
- U8WorkerService2
- UIODetect
- HaoZipSvc
- "memcached Server"
- VMwareHostd
- Apache2.4
- UFIDAWebService
- "igfxCUIService2.0.0.0"
- MSComplianceAudit
- MSExchangeADTopology
- MSExchangeAntispamUpdate
- TeamViewer8
- Realtek11nSU
- VMUSBArbService
- MSExchangeCompliance
- xenlite
- VMAuthdService
- XenSvc
- wanxiao-monitor
- WebAttendServer
- MSExchangeDagMgmt
- Apache2.2
- mysqltransport
- MSExchangeDelivery
- VMnetDHCP
- MSExchangeDiagnostics
- "Synology Drive VSS Service x64"
- "VMware NAT Service"
- MSExchangeEdgeSynca
- DellDRLogSvc
- FirebirdGuardianDeafaultInstance
- Tomcat8
- MSExchangeFastSearch
- JWEM3DBAUTORun
- JWRinfoClientService
- MSExchangeFrontEndTransport
- TeamViewer
- MSExchangeHM
- QPCore
- JWService
- CASLicenceServer
- MSSQL$SQL2008
- Service2
- CASWebServer
- MSExchangeHMRecovery
- RapidRecoveryAgent
- AutoUpdateService
- MSExchangeImap4
- FirebirdServerDefaultInstance
- MSExchangeIMAP4BE
- "Alibaba Security Aegis Detect Service"
- AdobeARMservice
- MSExchangeIS
- VeeamCatalogSvc
- "Alibaba Security Aegis Update Service"
- MSExchangeMailboxAssistants
- VeeanBackupSvc
- "AliyunService"
- VeeamTransportSvc
- CASXMLService
- MSExchangeMailboxReplication
- MSExchangeNotificationsBroker
- AGSService
- TPlusStdAppService1300
- RapService
- DDNSService
- MSExchangePop3
- iNethinkSQLBackupSvc
- TPlusStdTaskService1300
- MSExchangePOP3BE
- CASVirtualDiskService
- TPlusStdUpgradeService1300
- MSExchangeRepl
- MSExchangeRPC
- CASMsgSrv
- TPlusStdWebService1300
- "OracleOraDb10g_homeliSQL*Plus"
- VeeamNFSSvc
- MSExchangeServiceHost
- OracleDBConsoleilas
- VeeamDeploySvc
- MSExchangeSubmission
- VeeamCloudSvc
- MySQL
- MSExchangeThrottling
- TPlusStdAppService1220
- VeeamMountSvc
- MSExchangeTransport
- MSExchangeTransportLogSearch
- VeeamBrokerSvc
- TPlusStdTaskService1220
- MSExchangeUM
- VeeamDistributionSvc
- TPlusStdUpgradeService1220
- MSExchangeUMCR
- tmlisten
- MySQL5_OA
- K3MobileServiceManage
- ServiceMid
- "FileZilla Server"
- 360EntPGSvc
- DDVRulesProcessor
- ClickToRunSvc
- ImtsEventSvr
- AutoUpdatePatchService
- RavTask
- OMAILREPORT
- AngelOfDeath
- "Dell Hardware Support"
- d_safe
- SupportAssistAgent
- K3MMainSuspendService
- NFLicenceServer
- "NetVault Process Manager"
- KpService
- RavService
- ceng_web_svc_d
- KugouService
- DFServ
- IngressMgr
- pcas
- U8SendMailAdmin
- EvtSys
- "Bonjour Service"
- K3ClouManager
- "Apple Mobile Device Service"
- NFVPrintServer
- "ABBYY.Licensing.FineReader.Professional.12.0"
- RTCAVMCU
- CobianBackup10
- GNWebService
- Mysoft.SchedulingService
- AgentX
- SentinelKeysServer
- DGPNPSEV
- TurboCRM70
- NFSysService
- U8DispatchService
- NFOTPService
- U8EISService
- U8EncryptService
- U8GCService
- U8KeyManagePool
- U8MPool
- U8SCMPool
- U8SLReportService
- U8TaskService
- U8WebPool
- UFAllNet
- UFReportService
- UTUService

It terminates the following processes if found running in the affected system's memory:

where {Stopped Process 1}:
- db*
- apache*
- mysql*
- Notifier*
- IBM*
- copy*
- store*
- sql*
- vee*
- wrsa*
- postg*
- sage*
- msdt*
- ora*
- microsoft*
- backup*
- http*
- office*
- cube*
- team*
- b1*
- sbo*
- reporting*
- sav*
- fd*
where {Stopped Process 2}:
- sqlservr.exe
- httpd.exe
- java.exe
- fdhost.exe
- fdlauncher.exe
- reportingservicesservice.exe
- softmgrlite.exe
- sqlbrowser.exe
- ssms.exe
- vmtoolsd.exe
- baidunetdisk.exe
- yundetectservice.exe
- ssclient.exe
- GNAupdaemon.exe
- RAVCp164.exe
- igfxEM.exe
- igfxHK.exe
- igfxTray.exe
- 360bdoctor.exe
- GNCEFExternal.exe
- PrivacyIconClient.exe
- UIODetect.exe
- AutoDealService.exe
- IDDAService.exe
- EnergyDataService.exe
- MPService.exe
- TransMain.exe
- DAService.exe
- GoogleCrashHandler.exe
- GoogleCrashHandler64.exe
- GoogleUpdate.exe
- cohernece.exe
- vmware-tray.exe
- MsDtsSrvr.exe
- msmdsrv.exe
- "FileZilla server.exe"
- UpdateData.exe
- WebApi.Host.exe
- VGAuthService.exe
- omtsreco.exe
- TNSLSNR.exe
- oracle.exe
- msdtc.exe
- mmc.exe
- emagent.exe
- Admin.exe
- EnterprisePortal.exe
- tomcat7.exe
- Kingdee.K3.CRM.MMC.MMCService.exe
- Kingdee.k3.Weixin.ClientService.exe
- Kingdee.K3.PUBLIC.BkgSvcHost.exe
- Kingdee.K3.HR.Server.exe
- Kingdee.K3.PUBLIC.KDSvrMgrHost.exe
- tomcat5.exe
- Kingdee.DeskTool.exe
- UserClient.exe
- mysqld.exe
- ImtsEventSvr.exe
- mysqld-nt.exe
- 360EnterpriseDiskUI.exe
- tomcat8.exe
- QQprotect.exe
- isqlplussvc.exe
- nmesrvc.exe
- jusched.exe
- MtxHotPlugService.exe
- jucheck.exe
- wordpad.exe
- SecureCRT.exe
- chrome.exe
- Thunder.exe"
- ThunderPlatform.exe
- iexplore.exe
- vm-agent.exe
- vm-agent-daemon.exe
- eSightService.exe
- cygrunsrv.exe
- wrapper.exe
- nginx.exe
- node.exe
- sshd.exe
- vm-tray.exe
- iempwatchdog.exe
- sqlwriter.exe
- php.exe
- "notepad++.exe"
- "phpStudy.exe"
- OPCClient.exe
- navicat.exe
- SupportAssistAgent.exe
- SunloginClient.exe
- SOUNDMAN.exe
- WeChat.exe
- TXPlatform.exe
- Tencentdll.exe
- jenkins.exe
- QQ.exe
- HaoZip.exe
- HaoZipScan.exe
- TSVNCache.exe
- RAVCpl64.exe
- secbizsrv.exe
- aliwssv.exe
- Helper_Haozip.exe
- acrotray.exe
- "FileZilla Server Interface.exe"
- YoudaoNote.exe
- YNoteCefRender.exe
- idea.exe
- fsnotifier.exe
- picpick.exe
- lantern.exe
- sysproxy-
- service.exe
- pcas.exe
- PresentationFontCache.exe
- RtWlan.exe
- monitor.exe
- Correspond.exe
- ChatServer.exe
- InetMgr.exe
- LogonServer.exe
- GameServer.exe
- ServUAdmin.exe
- ServUDaemon.exe
- update0.exe
- server.exe
- w3wp.exe
- notepad.exe
- PalmInputService.exe
- PalmInputGuard.exe
- UpdateServer.exe
- UpdateGate.exe
- DBServer.exe
- LoginGate.exe
- SelGate.exe
- RunGate.exe
- M2Server.exe
- LogDataServer.exe
- LoginSrv.exe
- sqlceip.exe
- mqsvc.exe
- RefundOrder.exe
- ClamTray.exe
- AdobeARM.exe
- veeam.backup.shell.exe
- VpxClient.exe
- vmware-vmrc.exe
- DSCPatchService.exe
- scktsrvr.exe
- ServerManager.exe
- Dispatcher.exe
- EFDispatcher.exe
- ClamWin.exe
- srvany.exe
- JT_AG-8332.exe
- XXTClient.exe
- clean.exe
- "Net.Service.exe"
- plsqldev.exe
- splwow64.exe
- Oobe.exe
- QQYService.exe
- SGTool.exe
- postgres.exe
- AppVShNotify.exe
- OfficeClickToRun.exe
- EntDT.exe
- EntPublish.exe"
- pg_ctl.exe
- rcrelay.exe
- SogouImeBroker.exe
- CCenter.exe
- ScanFrm.exe
- d_manage.exe
- RsTray.exe
- wampmanager.exe
- RavTray.exe
- mssearch.exe
- sqlmangr.exe
- msftesql.exe
- SyncBaseSvr.exe
- oracle.exe
- TNSLSNR.exe
- SyncBaseConsole.exe
- aspnet_state.exe
- AutoBackUpEx.exe
- redis-server.exe
- MySQLNotifier.exe
- oravssw.exe
- fppdis5.exe
- His6Service.exe
- dinotify.exe
- JhTask.exe
- Executer.exe
- AllPassCBHost.exe
- ap_nginx.exe
- AndroidServer.exe
- XT.exe
- XTService.exe
- AllPassMCService.exe
- IMEDICTUPDATE.exe
- FlashHelperService.exe
- ap_redis-server.exe
- UtilDev.WebServer.Monitor.exe
- UWS.AppHost.Clr2.x86.exe
- FoxitProtect.exe
- ftnlses.exe
- ftusbrdwks.exe
- ftusbrdsrv.exe
- ftnlsv.exe
- Syslogd_Service.exe
- UWS.HighPrivilegeUtilities.exe
- ftusbsrv.exe
- UWS.LowPrivilegeUtilities.exe
- UWS.AppHost.Clr2.AnyCpu.exe
- winguard_x64.exe
- vmconnect.exe
- UWS.AppHost.Clr2.x86.exe
- firefox.exe
- usbrdsrv.exe
- usbserver.exe
- Foxmail.exe
- qemu-ga.exe
- wwbizsrv.exe
- ZTEFileTranS.exe
- ZTEUsbIpc.exe
- ZTEUsbIpcGuard.exe
- AlibabaProtect.exe
- kbasesrv.exe
- ZTEVdservice.exe
- MMRHookService.exe
- extjob.exe
- IpOverUsbSvc.exe
- VMwareTray.exe
- devenv.exe
- PerfWatson2.exe
- ServiceHub.Host.Node.x86.exe
- ServiceHub.IdentityHost.exe
- ServiceHub.VSDetouredHost.exe
- ServiceHub.SettingsHost.exe
- ServiceHub.Host.CLR.x86.exe
- ServiceHub.RoslynCodeAnalysisService32.exe
- ServiceHub.DataWarehouseHost.exe
- Microsoft.VisualStudio.Web.Host.exe
- SQLEXPRWT.exe
- setup.exe
- remote.exe
- setup100.exe
- landingpage.exe
- WINWORD.exe
- KuaiYun.exe
- HwsHostPanel.exe
- NovelSpider.exe
- Service_KMS.exe
- WebServer.exe
- ChsIME.exe
- btPanel.exe
- Protect_2345Explorer.exe
- Pic_2345Svc.exe
- vmware-converter-a.exe
- vmware-converter.exe
- vmware.exe
- vmware-unity-helper.exe
- vmware-vmx.exe
- vmware-vmx.exe
- usysdiag.exe
- PopBlock.exe
- gsinterface.exe
- Gemstar.Group.CRS.Client.exe
- TenpayServer.exe
- RemoteExecService.exe
- VS_TrueCorsManager.exe
- ntpsvr-2019-01-22-wgs84.exe
- rtkjob-ion.exe
- ntpsvr-2019-01-22-no-usrcheck.exe
- NtripCaster-2019-01-08.exe
- BACSTray.exe
- protect.exe
- hfs.exe
- jzmis.exe
- NewFileTime_x64.exe
- 2345MiniPage.exe
- JMJ_server.exe
- cacls.exe
- gpsdaemon.exe
- gpsusersvr.exe
- gpsdownsvr.exe
- gpsstoragesvr.exe
- gpsdataprocsvr.exe
- gpsftpd.exe
- gpsmysqld.exe
- gpstomcat6.exe
- gpsloginsvr.exe
- gpsmediasvr.exe
- gpsgatewaysvr.exe
- gpssvrctrl.exe
- zabbix_agentd.exe"
- BackupExec.exe
- Att.exe
- mdm.exe
- BackupExecManagementService.exe
- bengine.exe
- benetns.exe
- beserver.exe
- pvlsvr.exe
- bedbg.exe
- beremote.exe
- beremote.exe
- beremote.exe
- beremote.exe
- RemoteAssistProcess.exe
- BarMoniService.exe
- GoodGameSrv.exe
- BarCMService.exe
- TsService.exe
- GoodGame.exe
- BarServerView.exe
- IcafeServicesTray.exe
- BsAgent_0.exe
- ControlServer.exe
- DisklessServer.exe
- DumpServer.exe
- NetDiskServer.exe
- PersonUDisk.exe
- service_agent.exe
- SoftMemory.exe
- BarServer.exe
- RtkNGUI64.exe
- Serv-U-Tray.exe
- QQPCSoftTrayTips.exe
- SohuNews.exe
- Serv-U.exe
- QQPCRTP.exe
- EasyFZS.exe
- HaoYiShi.exe
- HysMySQL.exe
- wtautoreg.exe
- ispiritPro.exe
- CAService.exe
- XAssistant.exe
- TrustCA.exe
- GEUU20003.exe
- CertMgr.exe
- eSafe_monitor.exe
- MainExecute.exe
- FastInvoice.exe
- sesvc.exe
- ScanFileServer.exe
- Nuoadehgcgcd.exe
- OpenFastAssist.exe
- FastInvoiceAssist.exe
- Nuoadfaggcje.exe
- OfficeUpdate.exe
- atkexComSvc.exe
- FileTransferAgent.exe
- MasterReplicatorAgent.exe
- CrmAsyncService.exe
- CrmAsyncService.exe
- CrmUnzipService.exe
- NscAuthService.exe
- ReplicaReplicatorAgent.exe
- ASMCUSvc.exe
- OcsAppServerHost.exe
- RtcCdr.exe
- IMMCUSvc.exe
- DataMCUSvc.exe
- MeetingMCUSvc.exe
- QmsSvc.exe
- RTCSrv.exe
- pnopagw.exe
- NscAuth.exe
- Microsoft.ActiveDirectory.WebServices.exe
- DistributedCacheService.exe
- c2wtshost.exe
- Microsoft.Office.Project.Server.Calculation.exe
- schedengine.exe
- Microsoft.Office.Project.Server.Eventing.exe
- Microsoft.Office.Project.Server.Queuing.exe
- WSSADMIN.EXE
- hostcontrollerservice.exe
- noderunner.exe
- OWSTIMER.EXE
- wsstracing.exe
- mssearch.exe
- MySQLInstallerConsole.exe
- EXCEL.EXE
- consent.exe
- RtkAudioService64.exe
- RAVBg64.exe
- FNPLicensingService64.exe
- VisualSVNServer.exe
- MotionBoard57.exe
- MotionBoardRCService57.exe
- LPManService.exe
- RaRegistry.exe
- RaAutoInstSrv.exe
- RtHDVCpl.exe
- DefenderDaemon.exe
- BestSyncApp.exe
- ApUI.exe
- AutoUpdate.exe
- LPManNotifier.exe
- FieldAnalyst.exe
- TimingGenerate.exe
- Detector.exe
- Estimator.exe
- FA_Logwriter.exe
- TrackingSrv.exe
- cbInterface.exe
- ccbService.exe
- dbsrv16.exe
- KICManager.exe
- KICMain.exe
- ServerManagerLauncher.exe
- TbossGate.exe
- iusb3mon.exe
- MgrEnvSvc.exe
- Mysoft.Config.WindowsService.exe
- Mysoft.UpgradeService.UpdateService.exe
- hasplms.exe
- Mysoft.Setup.InstallService.exe
- Mysoft.UpgradeService.Dispatcher.exe
- Mysoft.DataCenterService.WindowsHost.exe
- Mysoft.DataCenterService.DataCleaning.exe
- Mysoft.DataCenterService.DataTracking.exe
- Mysoft.SchedulingService.WindowsHost.exe
- ServiceMonitor.exe
- Mysoft.SchedulingService.ExecuteEngine.exe
- AgentX.exe
- host.exe
- AutoUpdate.exe
- vsjitdebugger.exe"
- VBoxSDS.exe
- TeamViewer_Service.exe
- TeamViewer.exe
- CasLicenceServer.exe
- tv_w32.exe
- tv_x64.exe
- rdm.exe
- SecureCRTPortable.exe
- VirtualBox.exe
- VBoxSVC.exe
- VirtualBoxVM.exe
- abs_deployer.exe
- edr_monitor.exe
- sfupdatemgr.exe
- ipc_proxy.exe
- edr_agent.exe
- edr_sec_plan.exe
- sfavsvc.exe
- DataShareBox.ShareBoxMonitorService.exe
- DataShareBox.ShareBoxService.exe
- Jointsky.CloudExchangeService.exe
- Jointsky.CloudExchange.NodeService.ein
- perl.exe
- TsServer.exe
- AppMain.exe
- easservice.exe
- Kingdee6.1.exe
- QyKernel.exe
- QyFragment.exe
- ComputerZTray.exe
- ComputerZService.exe
- ClearCache.exe
- ProLiantMonitor.exe
- ChsIME.exe
- bugreport.exe
- GNWebServer.exe
- UI0Detect.exe
- GNCore.exe
- gnwayDDNS.exe
- GNWebHelper.exe
- php-cgi.exe
- ESLUSBService.exe
- CQA.exe
- Kekcoek.pif
- Tinuknx.exe
- servers.exe
- ping.exe
- TianHeng.exe
- K3MobileService.exe
- VSSVC.exe
- Xshell.exe
- XshellCore.exe
- FNPLicensingService.exe
- XYNTService.exe
- U8DispatchService.exe
- EISService.exe
- UFSoft.U8.Framework.EncryptManager.exe
- yonyou.u8.gc.taskmanager.servicebus.exe
- U8KeyManagePool.exe
- U8MPool.exe
- U8SCMPool.exe
- UFIDA.U8.Report.SLReportService.exe
- U8TaskService.exe
- U8TaskWorker.exe
- U8WebPool.exe
- U8AllAuthServer.exe
- UFIDA.U8.UAP.ReportService.exe
- UFIDA.U8.ECE.UTU.Services.exe
- U8WorkerService.exe
- UFIDA.U8.ECE.UTU.exe
- ShellStub.exe
- U8UpLoadTask.exe
- UfSysHostingService.exe
- UFIDA.UBF.SystemManage.ApplicationService.exe
- UFIDA.U9.CS.Collaboration.MailService.exe
- NotificationService.exe
- UBFdevenv.exe
- UFIDA.U9.SystemManage.SystemManagerClient.exe
- mongod.exe
- SpusCss.exe
- UUDesktop.exe
- KDHRServices.exe
- Kingdee.K3.Mobile.Servics.exe
- KDSvrMgrService.exe
- pdfServer.exe
- pdfspeedup.exe
- SufAppServer.exe
- Kingdee.K3.Mobile.LightPushService.exe
- iMTSSvcMgr.exe
- kdmain.exe
- KDActMGr.exe
- K3ServiceUpdater.exe
- Aua.exe
- iNethinkSQLBackup.exe
- auaJW.exe
- Scheduler.exe
- bschJW.exe
- SystemTray64.exe
- OfficeDaemon.exe
- OfficeIndex.exe
- OfficeIm.exe
- iNethinkSQLBackupConsole.exe
- OfficeMail.exe
- OfficeTask.exe
- OfficePOP3.exe
- apache.exe
- GnHostService.exe → Terminates the specified process and any child processes which were started by it.
- HwUVPUpgrade.exe → Terminates the specified process and any child processes which were started by it.
- "Kingdee.KIS.UESystemSer.exe" → Terminates the specified process and any child processes which were started by it.
- uvpmonitor.exe → Terminates the specified process and any child processes which were started by it.
- UVPUpgradeService.exe → Terminates the specified process and any child processes which were started by it.
- KDdataUpdate.exe → Terminates the specified process and any child processes which were started by it.
- Portal.exe → Terminates the specified process and any child processes which were started by it.
- U8SMSSrv.exe → Terminates the specified process and any child processes which were started by it.
- "Ufida.T.SM.PublishService.exe" → Terminates the specified process and any child processes which were started by it.
- lta8.exe → Terminates the specified process and any child processes which were started by it.
- UfSvrMgr.exe → Terminates the specified process and any child processes which were started by it.
- AutoUpdateService.exe → Terminates the specified process and any child processes which were started by it.
- MOM.exe → Terminates the specified process and any child processes which were started by it."
where {Stopped Process 3}:
- PccNTMon.exe
- NTRtScan.exe
- TmListen.exe
- TmCCSF.exe
- TmProxy.exe
- TMBMSRV.exe
- TmPfw.exe
- CNTAoSMgr.exe
- sqlbrowser.exe
- sqlwriter.exe
- sqlservr.exe
- msmdsrv.exe
- MsDtsSrvr.exe
- sqlceip.exe
- fdlauncher.exe
- Ssms.exe
- SQLAGENT.EXE
- fdhost.exe
- fdlauncher.exe
- ReportingServicesService.exe
- msftesql.exe
- pg_ctl.exe
- postgres.exe
- UniFi.exe
where {Stopped Process 4}:
- ThunderPlatform.exe
- pg_ctl.exe
- sqlservr.exe
- BackupExec.exe
- VBoxSDS.exe
- iexplore.exe
- Att.exe
- rcrelay.exe
- httpd.exe
- mdm.exe
- vm-agent.exe
- vm-agent-daemon.exe
- SogouImeBroker.exe
- mysqld.exe
- BackupExecManagementService.exe
- eSightService.exe
- TeamViewer_Service.exe
- java.exe
- CCenter.exe
- bengine.exe
- fdhost.exe
- cygrunsrv.exe
- TeamViewer.exe
- ScanFrm.exe
- benetns.exe
- wrapper.exe
- d_manage.exe
- fdlauncher.exe
- CasLicenceServer.exe
- nginx.exe
- beserver.exe
- reportingservicesservice.exe
- tv_w32.exe
- RsTray.exe
- pvlsvr.exe
- wampmanager.exe
- softmgrlite.exe
- node.exe
- tv_x64.exe
- bedbg.exe
- rdm.exe
- RavTray.exe
- sqlbrowser.exe
- beremote.exe
- SecureCRT.exe

Other Details

This Ransomware does the following:

It encrypts files from local drives, removable drives, and network shares
It connects to the following website to download and execute malicious module in memory to perform its malicious routine:
- http://{BLOCKED}.{BLOCKED}.{BLOCKED}.25/arx-Slkmrtswx_Vttmygcq.bmp
It deletes the following services:
- Where {Services Deleted}:

Ransomware Routine

This Ransomware avoids encrypting files with the following strings in their file name:

desktop.ini
ntuser.dat
thumbs.db
iconcache.db
ntuser.ini
ntldr
bootfont.bin
ntuser.dat.log
bootsect.bak
boot.ini
autorun.inf
debugLog.txt
MSBuild.exe
RECOVERY FILES.txt

It avoids encrypting files with the following strings in their file path:

msocache
$windows.~ws
system volume information
intel
appdata
perflogs
programdata
google
application data
tor browser
boot
$windows.~bt
mozilla
boot
windows.old
Windows Microsoft.NET
WindowsPowerShell
Windows NT
Windows
Common Files
Microsoft Security Client
Internet Explorer
Reference
Assemblies
Windows Defender
Microsoft ASP.NET
Core Runtime
Package
Store
Microsoft Help Viewer
Microsoft MPI
Windows Kits
Microsoft.NET
Windows Mail
Microsoft Security Client
Package Store
Microsoft Analysis Services
Windows Portable Devices
Windows Photo Viewer
Windows Sidebar

It appends the following extension to the file name of the encrypted files:

.FARGO3

It leaves text files that serve as ransom notes containing the following text:

{Drive Letter:}\RECOVERY FILES.txt
{Encrypted Directory:}\RECOVERY FILES.txt
$Ransom Note$

SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.320.03

FIRST VSAPI PATTERN DATE:

17 Mar 2023

VSAPI OPR PATTERN File:

18.321.00

VSAPI OPR PATTERN Date:

18 Mar 2023

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

Restart in Safe Mode

[ Learn More ]

Step 4

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- Lcudsgjlb = %Application Data%\Syfwfpwux\Lcudsgjlb.exe

Step 5

Search and delete this file

[ Learn More ]

There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.

%User Temp%\Logrpaqfriixribkill$.bat
{Drive Letter:}\RECOVERY FILES.txt
{Encrypted Directory:}\RECOVERY FILES.txt

Step 6

Search and delete these folders

[ Learn More ]

Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.

%Application Data%\Syfwfpwux

Step 7

Restart in normal mode and scan your computer with your Trend Micro product for files detected as Ransom.MSIL.TARGETCOMP.THHBBBB. 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 this Knowledge Base page for more information.

Step 8

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

Did this description help? Tell us how we did.

Ransom.MSIL.TARGETCOMP.THHBBBB

OVERVIEW

TECHNICAL DETAILS

SOLUTION

資源

支援

關於趨勢科技

香港暨澳門辦事處

Ransom.MSIL.TARGETCOMP.THHBBBB

OVERVIEW

TECHNICAL DETAILS

SOLUTION

資源

支援

關於趨勢科技

香港暨澳門辦事處

美洲

中東及非洲

歐洲

亞太地區