Ransom.Win32.MEGACORTEX.THGACAI
Ransom:Win32/Megacortex.B (Microsoft); Trojan-Ransom.Win32.MegaCortex.b (Kaspersky); Troj/Agent-BAWS (Sophos); Trojan.Win32.Generic!BT (Sunbelt)
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
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 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:
- cipher.exe /w:{Drive Letter}
- vssadmin delete shadows /all /for={Drive Letter}
Process Termination
This Ransomware terminates the following services if found on the affected system:
- Acronis VSS Provider
- AcronisAgent
- AcrSch2Svc
- AdobeARMservice
- Alerter
- Antivirus
- ARSM
- aswBcc
- Avast Business Console Client Antivirus Service
- avast! Antivirus
- avbackup
- AVP
- BackupExecAgentAccelerator
- BackupExecAgentBrowser
- BackupExecDeviceMediaService
- BackupExecJobEngine
- BackupExecManagementService
- BackupExecRPCService
- BackupExecVSSProvider
- bcrservice
- bedbg
- BITS
- BlueStripeCollector
- BrokerInfrastructure
- ccEvtMgr
- ccSetMgr
- Cissesrv
- CpqRcmc3
- CSAdmin
- CSAuth
- CSDbSync
- CSLog
- CSMon
- CSRadius
- CSTacacs
- DB2
- DB2-0
- DB2DAS00
- DB2GOVERNOR_DB2COPY1
- DB2INST2
- DB2LICD_DB2COPY1
- DB2MGMTSVC_DB2COPY1
- DB2REMOTECMD_DB2COPY1
- DCAgent
- EhttpSrv
- ekrn
- Enterprise Client Service
- epag
- EPIntegrationService
- EPProtectedService
- epredline
- EPSecurityService
- EPUpdateService
- EraserSvc11710
- ERSvc
- EsgShKernel
- ESHASRV
- Eventlog
- FA_Scheduler
- GoogleChromeElevationService
- gupdate
- gupdatem
- HealthService
- IBMDataServerMgr
- IBMDSServer41
- IDriverT
- IISAdmin
- IMAP4Svc
- ImapiService
- KAVFS
- KAVFSGT
- kavfsslp
- klnagent
- LogProcessorService
- LRSDRVX
- macmnsvc
- masvc
- MBAMService
- MBEndpointAgent
- McAfeeEngineService
- MCAFEEEVENTPARSERSRV
- McAfeeFramework
- McAfeeFrameworkMcAfeeFramework
- MCAFEETOMCATSRV530
- McShield
- McTaskManager
- mfefire
- mfemms
- mfevtp
- mfewc
- MMS
- mozyprobackup
- MsDtsServer
- MsDtsServer100
- MsDtsServer110
- MsDtsServer130
- MSExchangeES
- MSExchangeIS
- MSExchangeMGMT
- MSExchangeMTA
- MSExchangeSA
- MSExchangeSRS
- msftesql$PROD
- MSMQ
- MSOLAP$SQL_2008
- MSOLAP$SYSTEM_BGC
- MSOLAP$TPS
- MSOLAP$TPSAMA
- MSSQL$BKUPEXEC
- MSSQL$CITRIX_METAFRAME
- MSSQL$ECWDB2
- MSSQL$EPOSERVER
- MSSQL$ITRIS
- MSSQL$NET2
- MSSQL$PRACTICEMGT
- MSSQL$PRACTTICEBGC
- MSSQL$PROD
- MSSQL$PROFXENGAGEMENT
- MSSQL$SBSMONITORING
- MSSQL$SHAREPOINT
- MSSQL$SOPHOS
- MSSQL$SQL_2008
- MSSQL$SQLEXPRESS
- MSSQL$SYSTEM_BGC
- MSSQL$TPS
- MSSQL$TPSAMA
- MSSQL$VEEAMSQL2008R2
- MSSQL$VEEAMSQL2012
- MSSQLFDLauncher
- MSSQLFDLauncher$ITRIS
- MSSQLFDLauncher$PROFXENGAGEMENT
- MSSQLFDLauncher$SBSMONITORING
- MSSQLFDLauncher$SHAREPOINT
- MSSQLFDLauncher$SQL_2008
- MSSQLFDLauncher$SYSTEM_BGC
- MSSQLFDLauncher$TPS
- MSSQLFDLauncher$TPSAMA
- MSSQLLaunchpad$ITRIS
- MSSQLSERVER
- MSSQLServerADHelper
- MSSQLServerADHelper100
- MSSQLServerOLAPService
- msvsmon90
- myAgtSvc
- MySQL57
- Net2ClientSvc
- NetDDE
- NetMsmqActivator
- NetSvc
- NimbusWatcherService
- NtLmSsp
- NtmsSvc
- ntrtscan
- odserv
- OracleClientCache80
- ose
- PDVFSService
- POP3Svc
- ProLiantMonitor
- ReportServer
- ReportServer$SQL_2008
- ReportServer$SYSTEM_BGC
- ReportServer$TPS
- ReportServer$TPSAMA
- RESvc
- RSCDsvc
- RumorServer
- sacsvr
- SamSs
- SAVAdminService
- SAVService
- SDD_Service
- SDRSVC
- SentinelAgent
- SentinelHelperService
- SentinelStaticEngine
- SepMasterService
- SepMasterServiceMig
- ShMonitor
- Smcinst
- SmcService
- SMTPSvc
- SNAC
- SnowInventoryClient
- SntpService
- Sophos Agent
- Sophos AutoUpdate Service
- Sophos Clean Service
- Sophos Device Control Service
- Sophos File Scanner Service
- Sophos Health Service
- Sophos MCS Agent
- Sophos MCS Client
- Sophos Message Router
- Sophos Safestore Service
- Sophos System Protection Service
- Sophos Web Control Service
- sophossps
- SQL Backups
- SQLAgent$BKUPEXEC
- SQLAgent$CITRIX_METAFRAME
- SQLAgent$CXDB
- SQLAgent$ECWDB2
- SQLAgent$EPOSERVER
- SQLAgent$ITRIS
- SQLAgent$NET2
- SQLAgent$PRACTTICEBGC
- SQLAgent$PRACTTICEMGT
- SQLAgent$PROD
- SQLAgent$PROFXENGAGEMENT
- SQLAgent$SBSMONITORING
- SQLAgent$SHAREPOINT
- SQLAgent$SOPHOS
- SQLAgent$SQL_2008
- SQLAgent$SQLEXPRESS
- SQLAgent$SYSTEM_BGC
- SQLAgent$TPS
- SQLAgent$TPSAMA
- SQLAgent$VEEAMSQL2008R2
- SQLAgent$VEEAMSQL2012
- SQLBrowser
- SQLsafe Backup Service
- SQLsafe Filter Service
- SQLSafeOLRService
- SQLSERVERAGENT
- SQLTELEMETRY
- SQLTELEMETRY$ECWDB2
- SQLTELEMETRY$ITRIS
- SQLWriter
- SSISTELEMETRY130
- SstpSvc
- svcGenericHost
- swi_filter
- swi_service
- swi_update
- swi_update_64
- Symantec
- Symantec System Recovery
- sysdown
- System
- Telemetryserver
- TlntSvr
- TmCCSF
- tmlisten
- TmPfw
- TPAutoConnSvc
- TPVCGateway
- TrueKey
- TrueKeyScheduler
- TrueKeyServiceHelper
- TSM
- UI0Detect
- Veeam Backup Catalog Data Service
- VeeamBackupSvc
- VeeamBrokerSvc
- VeeamCatalogSvc
- VeeamCloudSvc
- VeeamDeploymentService
- VeeamDeploySvc
- VeeamEnterpriseManagerSvc
- VeeamHvIntegrationSvc
- VeeamMountSvc
- VeeamNFSSvc
- VeeamRESTSvc
- VeeamTransportSvc
- VGAuthService
- VMTools
- VMware
- vmware-converter-agent
- vmware-converter-server
- vmware-converter-worker
- VMwareCAFCommAmqpListener
- VMwareCAFManagementAgentHost
- W3Svc
- wbengine
- WdNisSvc
- WebClient
- WinDefend
- WinVNC4
- WRSVC
- Zoolz 2 Service
It terminates the following processes if found running in the affected system's memory:
- a2guard.exe
- a2start.exe
- a2service.exe
- aawservice.exe
- acaas.exe
- acaegmgr.exe
- acaif.exe
- acais.exe
- acctmgr.exe
- aclient.exe
- aclntusr.exe
- ad-aware2007.exe
- administrator.exe
- adminserver.exe
- aesecurityservice.exe
- aexagentuihost.exe
- aexnsagent.exe
- aexnsrcvsvc.exe
- aexsvc.exe
- aexswdusr.exe
- aflogvw.exe
- afwserv.exe
- agntsvc.exe
- ahnrpt.exe
- ahnsd.exe
- ahnsdsv.exe
- alert.exe
- alertsvc.exe
- almon.exe
- alogserv.exe
- alsvc.exe
- alunotify.exe
- alupdate.exe
- aluschedulersvc.exe
- amsvc.exe
- amswmagt
- anvir.exe
- aphost.exe
- appsvc32.exe
- aps.exe
- apvxdwin.exe
- ashavast.exe
- ashbug.exe
- ashchest.exe
- ashcmd.exe
- ashdisp.exe
- ashenhcd.exe
- ashlogv.exe
- ashmaisv.exe
- ashpopwz.exe
- ashquick.exe
- ashserv.exe
- ashsimp2.exe
- ashsimpl.exe
- ashskpcc.exe
- ashskpck.exe
- ashupd.exe
- ashwebsv.exe
- asupport.exe
- aswdisp.exe
- aswregsvr.exe
- aswserv.exe
- aswupdsv.exe
- aswwebsv.exe
- atrshost.exe
- atwsctsk.exe
- aupdrun.exe
- aus.exe
- auth8021x.exe
- autoup.exe
- avadmin.exe
- avagent.exe
- avastemupdate.exe
- avastsvc.exe
- avastui.exe
- avcenter.exe
- avconfig.exe
- avconsol.exe
- avengine.exe
- avesvc.exe
- avfwsvc.exe
- avgam.exe
- avgamsvr.exe
- avgas.exe
- avgcc.exe
- avgcc32.exe
- avgcefrend.exe
- avgchsvx.exe
- avgcmgr.exe
- avgcsrva.exe
- avgcsrvx.exe
- avgctrl.exe
- avgdiag.exe
- avgemc.exe
- avgemca.exe
- avgemcx.exe
- avgfws.exe
- avgfws8.exe
- avgfws9.exe
- avgfwsrv.exe
- avgidsagent.exe
- avgidsmonitor.exe
- avgidsui.exe
- avgidswatcher.exe
- avginet.exe
- avgmfapx.exe
- avgmsvr.exe
- avgnsa.exe
- avgnsx.exe
- avgnt.exe
- avgregcl.exe
- avgrsa.exe
- avgrssvc.exe
- avgrsx.exe
- avgscanx.exe
- avgserv.exe
- avgserv9.exe
- avgsvc.exe
- avgsystx.exe
- avgtray.exe
- avguard.exe
- avgui.exe
- avgupd.exe
- avgupdln.exe
- avgupsvc.exe
- avgvv.exe
- avgw.exe
- avgwb.dat
- avgwdsvc.exe
- avgwizfw.exe
- avira.servicehost.exe
- avira.systray.exe
- avkproxy.exe
- avkservice.exe
- avktray.exe
- avkwctl.exe
- avltmain.exe
- avmailc.exe
- avmcdlg.exe
- avnotify.exe
- avp.exe
- avpcc.exe
- avpdtagt.exe
- avpexec.exe
- avpm.exe
- avpncc.exe
- avps.exe
- avpui.exe
- avpupd.exe
- avscan.exe
- avscc.exe
- avserver.exe
- avshadow.exe
- avsynmgr.exe
- avtask.exe
- avwebgrd.exe
- basfipm.exe
- bavtray.exe
- bcreporter.exe
- bcrservice.exe
- bdagent.exe
- bdc.exe
- bdlite.exe
- bdmcon.exe
- bdredline.exe
- bdss.exe
- bdsubmit.exe
- bhipssvc.exe
- bka.exe
- bkavsystemserver.exe
- blackd.exe
- blackice.exe
- bluestripecollector.exe
- blupro.exe
- bmrt.exe
- bullguard.exe
- bullguardbhvscanner.exe
- bullguardscanner.exe
- bullguardtray.exe
- bullguardupdate.exe
- bwgo0000
- ca.exe
- caantispyware.exe
- caav.exe
- caavcmdscan.exe
- caavguiscan.exe
- caf.exe
- cafw.exe
- caissdt.exe
- calogdump.exe
- capfaem.exe
- capfasem.exe
- capfsem.exe
- capmuamagt.exe
- cappactiveprotection.exe
- casc.exe
- casecuritycenter.exe
- caunst.exe
- cavrep.exe
- cavrid.exe
- cavscan.exe
- cavtray.exe
- ccap.exe
- ccapp.exe
- ccemflsv.exe
- ccenter.exe
- ccevtmgr.exe
- ccflic0.exe
- ccflic4.exe
- cclaw.exe
- ccm messaging.exe
- ccnfagent.exe
- ccprovsp.exe
- ccproxy.exe
- ccpxysvc.exe
- ccschedulersvc.exe
- ccsetmgr.exe
- ccsmagtd.exe
- ccsvchst.exe
- ccsystemreport.exe
- cctray.exe
- ccupdate.exe
- cdm.exe
- certificateprovider.exe
- certificationmanagerservicent.exe
- cfftplugin.exe
- cfnotsrvd.exe
- cfp.exe
- cfpconfg.exe
- cfpconfig.exe
- cfplogvw.exe
- cfpsbmit.exe
- cfpupdat.exe
- cfsmsmd.exe
- checkup.exe
- chrome.exe
- cis.exe
- cistray.exe
- cka.exe
- clamscan.exe
- clamtray.exe
- clamwin.exe
- client.exe
- client64.exe
- clps.exe
- clpsla.exe
- clpsls.exe
- clshield.exe
- cmdagent.exe
- cmdinstall.exe
- cmgrdian.exe
- cntaosmgr.exe
- collwrap.exe
- comhost.exe
- config_api_service.exe
- console.exe
- control_panel.exe
- coreframeworkhost.exe
- coreserviceshell.exe
- cpd.exe
- cpdclnt.exe
- cpf.exe
- cpntsrv.exe
- cramtray.exe
- crashrep.exe
- crdm.exe
- crssvc.exe
- csacontrol.exe
- csadmin.exe
- csauth.exe
- csdbsync.exe
- csfalconservice.exe
- csinject.exe
- csinsm32.exe
- csinsmnt.exe
- cslog.exe
- csmon.exe
- csradius.exe
- csrss_tc.exe
- cssauth.exe
- cstacacs.exe
- ctdataload.exe
- cwbunnav.exe
- cylancesvc.exe
- cylanceui.exe
- dao_log.exe
- dbeng50.exe
- dbserv.exe
- dbsnmp.exe
- dbsrv9.exe
- defwatch
- defwatch.exe
- deloeminfs.exe
- deteqt.agent.exe
- diskmon.exe
- djsnetcn.exe
- dlservice.exe
- dltray.exe
- dolphincharge.e
- dolphincharge.exe
- doscan.exe
- dpmra.exe
- dr_serviceengine.exe
- drwagntd.exe
- drwagnui.exe
- drweb.exe
- drweb32.exe
- drweb32w.exe
- drweb386.exe
- drwebcgp.exe
- drwebcom.exe
- drwebdc.exe
- drwebmng.exe
- drwebscd.exe
- drwebupw.exe
- drwebwcl.exe
- drwebwin.exe
- drwinst.exe
- drwupgrade.exe
- dsmcad.exe
- dsmcsvc.exe
- dwarkdaemon.exe
- dwengine.exe
- dwhwizrd.exe
- dwnetfilter.exe
- dwrcst.exe
- dwwin.exe
- edisk.exe
- eeyeevnt.exe
- egui.exe
- ehttpsrv.exe
- ekrn.exe
- elogsvc.exe
- emlibupdateagentnt.exe
- emlproui.exe
- emlproxy.exe
- encsvc.exe
- endpointsecurity.exe
- engineserver.exe
- entitymain.exe
- epmd.exe
- era.exe
- erlsrv.exe
- esecagntservice.exe
- esecservice.exe
- esmagent.exe
- etagent.exe
- etconsole3.exe
- etcorrel.exe
- etloganalyzer.exe
- etreporter.exe
- etrssfeeds.exe
- etscheduler.exe
- etwcontrolpanel.exe
- euqmonitor.exe
- eventparser.exe
- evtarmgr.exe
- evtmgr.exe
- evtprocessecfile.exe
- ewidoctrl.exe
- ewidoguard.exe
- excel.exe
- execstat.exe
- fameh32.exe
- fcappdb.exe
- fcdblog.exe
- fch32.exe
- fchelper64.exe
- fcsms.exe
- fcssas.exe
- fih32.exe
- firefox.exe
- firefoxconfig.exe
- firesvc.exe
- firetray.exe
- firewallgui.exe
- fmon.exe
- fnplicensingservice.exe
- forcefield.exe
- fortiesnac.exe
- fortifw.exe
- fortiproxy.exe
- fortisslvpndaemon.exe
- fortitray.exe
- fortiwf.exe
- fpavserver.exe
- fprottray.exe
- frameworkservic
- frameworkservic.exe
- frameworkservice.exe
- frzstate2k.exe
- fsaa.exe
- fsaua.exe
- fsav32.exe
- fsavgui.exe
- fscuif.exe
- fsdfwd.exe
- fsgk32.exe
- fsgk32st.exe
- fsguidll.exe
- fsguiexe.exe
- fshdll32.exe
- fshoster32.exe
- fshoster64.exe
- fsm32.exe
- fsma32.exe
- fsmb32.exe
- fsorsp.exe
- fspc.exe
- fspex.exe
- fsqh.exe
- fssm32.exe
- fwcfg.exe
- fwinst.exe
- fws.exe
- gcascleaner.exe
- gcasdtserv.exe
- gcasinstallhelper.exe
- gcasnotice.exe
- gcasserv.exe
- gcasservalert.exe
- gcasswupdater.exe
- gdfirewalltray.exe
- gdfwsvc.exe
- gdscan.exe
- gfireporterservice.exe
- ghost_2.exe
- ghosttray.exe
- giantantispywaremain.exe
- giantantispywareupdater.exe
- googlecrashhandler.exe
- googlecrashhandler64.exe
- googleupdate.exe
- guard.exe
- guardgui.exe
- gziface.exe
- gzserv.exe
- hasplmv.exe
- schupd.exe
- sdrservice.exe
- sdtrayapp.exe
- seanalyzertool.exe
- seccenter.exe
- securitycenter.exe
- hdb.exe
- healthservice.exe
- hpqwmiex.exe
- hwapi.exe
- icepack.exe
- idsinst.exe
- iface.exe
- igateway.exe
- ilicensesvc.exe
- inet_gethost.exe
- infopath.exe
- inicio.exe
- inonmsrv.exe
- inorpc.exe
- inort.exe
- inotask.exe
- inoweb.exe
- isafe.exe
- isafinst.exe
- isntsmtp.exe
- isntsysmonitor
- ispwdsvc.exe
- isqlplussvc.exe
- isscsf.exe
- issdaemon.exe
- issvc.exe
- isuac.exe
- iswmgr.exe
- itmrt_supportdiagnostics.exe
- itmrt_trace.exe
- itmrtsvc.exe
- ixaptsvc.exe
- ixavsvc.exe
- ixfwsvc.exe
- kabackreport.exe
- kaccore.exe
- kanmcmain.exe
- kansgui.exe
- kansvr.exe
- kastray.exe
- kav.exe
- kav32.exe
- kavadapterexe.exe
- kavfs.exe
- kavfsgt.exe
- kavfsrcn.exe
- kavfsscs.exe
- kavfswp.exe
- kavisarv.exe
- kavlotsingleton.exe
- kavmm.exe
- kavshell.exe
- kavss.exe
- kavstart.exe
- kavsvc.exe
- kavtray.exe
- kb891711.exe
- keysvc.exe
- kis.exe
- kislive.exe
- kissvc.exe
- klnacserver.exe
- klnagent.exe
- klserver.exe
- klswd.exe
- klwtblfs.exe
- kmailmon.exe
- knownsvr.exe
- knupdatemain.exe
- kpf4gui.exe
- kpf4ss.exe
- kpfw32.exe
- kpfwsvc.exe
- krbcc32s.exe
- kswebshield.exe
- kvdetech.exe
- kvmonxp.kxp
- kvmonxp_2.kxp
- kvolself.exe
- kvsrvxp.exe
- kvsrvxp_1.exe
- kvxp.kxp
- kwatch.exe
- kwsprod.exe
- kxeserv.exe
- leventmgr.exe
- livesrv.exe
- lmon.exe
- log_qtine.exe
- loggetor.exe
- loggingserver.exe
- luall.exe
- lucallbackproxy.exe
- lucoms.exe
- lucomserver.exe
- lucoms~1.exe
- lwdmserver.exe
- macmnsvc.exe
- macompatsvc.exe
- managementagenthost.exe
- managementagentnt.exe
- mantispm.exe
- masalert.exe
- massrv.exe
- masvc.exe
- mbamservice.exe
- mbamtray.exe
- mcafeedatabackup.exe
- mcagent.exe
- mcapexe.exe
- mcappins.exe
- mcconsol.exe
- mcdash.exe
- mcdetect.exe
- mcepoc.exe
- mcepocfg.exe
- mcinfo.exe
- mcmnhdlr.exe
- mcmscsvc.exe
- mcnasvc.exe
- mcods.exe
- mcpalmcfg.exe
- mcpromgr.exe
- mcproxy.exe
- mcregwiz.exe
- mcsacore.exe
- mcscript_inuse.exe
- mcshell.exe
- mcshield.exe
- mcshld9x.exe
- mcsvhost.exe
- mcsysmon.exe
- mctray.exe
- mctskshd.exe
- mcui32.exe
- mcuimgr.exe
- mcupdate.exe
- mcupdmgr.exe
- mcvsftsn.exe
- mcvsrte.exe
- mcvsshld.exe
- mcwce.exe
- mcwcecfg.exe
- mfeann.exe
- mfecanary.exe
- mfeesp.exe
- mfefire.exe
- mfefw.exe
- mfehcs.exe
- mfemactl.exe
- mfemms.exe
- mfetp.exe
- mfevtps.exe
- mfewc.exe
- mfewch.exe
- mgavrtcl.exe
- mghtml.exe
- mgntsvc.exe
- monitoringhost.exe
- monsvcnt.exe
- monsysnt.exe
- mpcmdrun.exe
- mpf.exe
- mpfagent.exe
- mpfconsole.exe
- mpfservice.exe
- mpfsrv.exe
- mpftray.exe
- mps.exe
- mpsevh.exe
- mpsvc.exe
- mrf.exe
- msaccess.exe
- msascui.exe
- mscifapp.exe
- msdtssrvr.exe
- msftesql.exe
- mskagent.exe
- mskdetct.exe
- msksrver.exe
- msksrvr.exe
- msmdsrv.exe
- msmpeng.exe
- mspmspsv.exe
- mspub.exe
- msscli.exe
- msseces.exe
- msssrv.exe
- musnotificationux.exe
- myagttry.exe
- mydesktopqos.exe
- mydesktopservice.exe
- mysqld-nt.exe
- mysqld-opt.exe
- mysqld.exe
- n.exe
- nailgpip.exe
- naprdmgr.exe
- navapsvc.exe
- navapw32.exe
- navectrl.exe
- navelog.exe
- navesp.exe
- navshcom.exe
- navw32.exe
- navwnt.exe
- ncdaemon.exe
- nd2svc.exe
- ndetect.exe
- ndrvs.exe
- ndrvx.exe
- neotrace.exe
- nerosvc.exe
- netalertclient.exe
- netcfg.exe
- netsession_win.exe
- networkagent.exe
- ngctw32.exe
- ngserver.exe
- nimbus.exe
- nimcluster.exe
- nip.exe
- nipsvc.exe
- nisoptui.exe
- nisserv.exe
- nissrv.exe
- nisum.exe
- njeeves.exe
- nlclient.exe
- nlsvc.exe
- nmagent.exe
- nmain.exe
- nod32.exe
- nod32krn.exe
- nod32kui.exe
- nod32view.exe
- nortonsecurity.exe
- npfmntor.exe
- npfmsg.exe
- npfmsg2.exe
- npfsvice.exe
- npmdagent.exe
- nprotect.exe
- npscheck.exe
- npssvc.exe
- nrmenctb.exe
- nscsrvce.exe
- nsctop.exe
- nslocollectorservice.exe
- nsmdemf.exe
- nsmdmon.exe
- nsmdreal.exe
- nsmdsch.exe
- nsmdtr.exe
- ntcaagent.exe
- ntcadaemon.exe
- ntcaservice.exe
- ntevl.exe
- ntrtscan.exe
- ntservices.exe
- nvcoas.exe
- nvcsched.exe
- nymse.exe
- oasclnt.exe
- ocautoupds.exe
- ocomm.exe
- ocssd.exe
- oespamtest.exe
- ofcdog.exe
- ofcpfwsvc.exe
- okclient.exe
- olfsnt40.exe
- omniagent.exe
- omslogmanager.exe
- omtsreco.exe
- onenote.exe
- onlinent.exe
- onlnsvc.exe
- op_viewer.exe
- opscan.exe
- oracle.exe
- outlook.exe
- outpost.exe
- paamsrv.exe
- padfsvr.exe
- pagent.exe
- pagentwd.exe
- pasystemtray.exe
- patch.exe
- patrolagent.exe
- patrolperf.exe
- pavbckpt.exe
- pavfires.exe
- pavfnsvr.exe
- pavjobs.exe
- pavkre.exe
- pavmail.exe
- pavprot.exe
- pavprsrv.exe
- pavreport.exe
- pavsched.exe
- pavsrv50.exe
- pavsrv51.exe
- pavsrv52.exe
- pavupg.exe
- paxton.net2.clientservice.exe
- paxton.net2.commsserverservice.exe
- pccclient.exe
- pccguide.exe
- pcclient.exe
- pccnt.exe
- pccntmon.exe
- pccntupd.exe
- pccpfw.exe
- pcctlcom.exe
- pcscan.exe
- pcscm.exe
- pcscnsrv.exe
- pcsws.exe
- pctsauxs.exe
- pctsgui.exe
- pctssvc.exe
- pctstray.exe
- pep.exe
- persfw.exe
- pmgreader.exe
- pmon.exe
- pnmsrv.exe
- pntiomon.exe
- pop3pack.exe
- pop3trap.exe
- poproxy.exe
- powerpnt.exe
- ppclean.exe
- ppctlpriv.exe
- ppmcativedetection.exe
- ppppwallrun.exe
- pqibrowser.exe
- pqv2isvc.exe
- pralarmmgr.exe
- prcalculationmgr.exe
- prconfigmgr.exe
- prdatabasemgr.exe
- premailengine.exe
- preventmgr.exe
- prevsrv.exe
- prftpengine.exe
- prgateway.exe
- printdevice.exe
- privacyiconclient.exe
- prlicensemgr.exe
- procexp.exe
- proficy administrator.exe
- proficyclient.exe
- proficypublisherservice.exe
- proficyserver.exe
- proficysts.exe
- proutil.exe
- prprintserver.exe
- prproficymgr.exe
- prrds.exe
- prreader.exe
- prrouter.exe
- prschedulemgr.exe
- prstubber.exe
- prsummarymgr.exe
- prunsrv.exe
- prwriter.exe
- psanhost.exe
- psctris.exe
- psctrls.exe
- psh_svc.exe
- pshost.exe
- psimreal.exe
- psimsvc.exe
- pskmssvc.exe
- psuamain.exe
- psuaservice.exe
- pthosttr.exe
- pview.exe
- pviewer.exe
- pwdfilthelp.exe
- pxemtftp.exe
- pxeservice.exe
- qclean.exe
- qdcsfs.exe
- qhactivedefense.exe
- qhsafetray.exe
- qhwatchdog.exe
- qoeloader.exe
- qserver.exe
- rapapp.exe
- rapuisvc.exe
- ras.exe
- rasupd.exe
- rav.exe
- ravalert.exe
- ravmon.exe
- ravmond.exe
- ravservice.exe
- ravstub.exe
- ravtask.exe
- ravtray.exe
- ravupdate.exe
- ravxp.exe
- rcsvcmon.exe
- rdrcef.exe
- realmon.exe
- redirsvc.exe
- regmech.exe
- remupd.exe
- repmgr64.exe
- reportersvc.exe
- reportingservicesservice.exe
- reportsvc.exe
- retinaengine.exe
- rfwmain.exe
- rfwproxy.exe
- rfwsrv.exe
- rfwstub.exe
- rnav.exe
- rnreport.exe
- routernt.exe
- rpcserv.exe
- rscd.exe
- rscdsvc.exe
- rsnetsvr.exe
- rssensor.exe
- rstray.exe
- rtvscan.exe
- rulaunch.exe
- safeservice.exe
- sahookmain.exe
- saservice.exe
- sav32cli.exe
- savadminservice.exe
- savfmsectrl.exe
- savfmselog.exe
- savfmsesjm.exe
- savfmsesp.exe
- savfmsespamstatsmanager.exe
- savfmsesrv.exe
- savfmsetask.exe
- savfmseui.exe
- savmain.exe
- savroam.exe
- savscan.exe
- savservice.exe
- savui.exe
- sbamsvc.exe
- sbserv.exe
- scan32.exe
- scanexplicit.exe
- scanfrm.exe
- scanmailoutlook.exe
- scanmsg.exe
- scanwscs.exe
- scfagent_64.exe
- scfmanager.exe
- scfservice.exe
- scftray.exe
- schdsrvc.exe
- securitymanager.exe
- seestat.exe
- semsvc.exe
- server_eventlog.exe
- server_runtime.exe
- sesclu.exe
- setloadorder.exe
- setupguimngr.exe
- sevinst.exe
- sgbhp.exe
- shstat.exe
- sidebar.exe
- siteadv.exe
- slee81.exe
- smc.exe
- smcgui.exe
- smex_activeupda
- smex_master.exe
- smex_remoteconf
- smex_systemwatc
- smoutlookpack.exe
- sms.exe
- smsectrl.exe
- smselog.exe
- smsesjm.exe
- smsesp.exe
- smsesrv.exe
- smsetask.exe
- smseui.exe
- smsx.exe
- snac.exe
- sndmon.exe
- sndsrvc.exe
- snhwsrv.exe
- snicheckadm.exe
- snichecksrv.exe
- snicon.exe
- snsrv.exe
- spbbcsvc.exe
- spideragent.exe
- spiderml.exe
- spidernt.exe
- spiderui.exe
- spntsvc.exe
- spooler.exe
- spyemergency.exe
- spyemergencysrv.exe
- sqbcoreservice.exe
- sqlagent.exe
- sqlbrowser.exe
- sqlservr.exe
- sqlwriter.exe
- srvload.exe
- srvmon.exe
- sschk.exe
- ssecuritymanager.exe
- ssm.exe
- ssp.exe
- ssscheduler.exe
- starta.exe
- steam.exe
- stinger.exe
- stopa.exe
- stopp.exe
- stwatchdog.exe
- svcgenerichost
- svcharge.exe
- svcntaux.exe
- svdealer.exe
- svframe.exe
- svtray.exe
- swc_service.exe
- swdsvc.exe
- sweepsrv.sys
- swi_service.exe
- swnetsup.exe
- swnxt.exe
- swserver.exe
- symlcsvc.exe
- symproxysvc.exe
- symsport.exe
- symtray.exe
- symwsc.exe
- synctime.exe
- sysdoc32.exe
- sysoptenginesvc.exe
- system.exe
- taskhostw.exe
- tbirdconfig.exe
- tbmon.exe
- tclproc.exe
- tdimon.exe
- teamviewer_service.exe
- tfgui.exe
- tfservice.exe
- tftray.exe
- tfun.exe
- thebat.exe
- thebat64.exe
- thunderbird.exe
- tiaspn~1.exe
- tmas.exe
- tmlisten.exe
- tmntsrv.exe
- tmpfw.exe
- tmproxy.exe
- tnbutil.exe
- tnslsnr.exe
- toolbarupdater.exe
- tpsrv.exe
- traflnsp.exe
- traptrackermgr.exe
- trjscan.exe
- trupd.exe
- tsansrf.exe
- tsatisy.exe
- tscutynt.exe
- tsmpnt.exe
- ucservice.exe
- udaterui.exe
- uiseagnt.exe
- uiwatchdog.exe
- umxagent.exe
- umxcfg.exe
- umxfwhlp.exe
- umxpol.exe
- unsecapp.exe
- unvet32.exe
- up2date.exe
- update_task.exe
- updaterui.exe
- updtnv28.exe
- upfile.exe
- uplive.exe
- uploadrecord.exe
- upschd.exe
- url_response.exe
- urllstck.exe
- usbguard.exe
- useractivity.exe
- useranalysis.exe
- usergate.exe
- usrprmpt.exe
- v2iconsole.exe
- v3clnsrv.exe
- v3exec.exe
- v3imscn.exe
- v3lite.exe
- v3main.exe
- v3medic.exe
- v3sp.exe
- v3svc.exe
- vetmsg.exe
- vettray.exe
- vgauthservice.exe
- visio.exe
- vmacthlp.exe
- vmtoolsd.exe
- vmware-converter-a.exe
- vmware-converter.exe
- vmwaretray.exe
- vpatch.exe
- vpc32.exe
- vpdn_lu.exe
- vprosvc.exe
- vprot.exe
- vptray.exe
- vrv.exe
- vrvmail.exe
- vrvmon.exe
- vrvnet.exe
- vshwin32.exe
- vsmain.exe
- vsmon.exe
- vsserv.exe
- vsstat.exe
- vstskmgr.exe
- webproxy.exe
- webscanx.exe
- websensecontrolservice.exe
- webtrapnt.exe
- wfxctl32.exe
- wfxmod32.exe
- wfxsnt40.exe
- win32sysinfo.exe
- winlog.exe
- winroute.exe
- winvnc4.exe
- winword.exe
- wordpad.exe
- workflowresttest.exe
- wrctrl.exe
- wrsa.exe
- wrspysetup.exe
- wscntfy.exe
- wssfcmai.exe
- wtusystemsuport.exe
- xcommsvr.exe
- xfilter.exe
- xfssvccon.exe
- zanda.exe
- zapro.exe
- zavaux.exe
- zavcore.exe
- zillya.exe
- zlclient.exe
- zlh.exe
- zonealarm.exe
Dropping Routine
This Ransomware drops the following files:
- %System Root%\nxahoft_G2.log -> contains the list of files encrypted by the malware
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Other Details
This Ransomware does the following:
- It checks if the queried directory is %Windows%. If it is, "\temp" will be concatenated to the string, making the target directory %Temp%. This ensures that no other directory or file inside %Windows% becomes a target of encryption.
- It disables the following services, making them unable to start up:
- Acronis VSS Provider
- AcronisAgent
- AcrSch2Svc
- AdobeARMservice
- Alerter
- Antivirus
- ARSM
- aswBcc
- Avast Business Console Client Antivirus Service
- avast! Antivirus
- avbackup
- AVP
- BackupExecAgentAccelerator
- BackupExecAgentBrowser
- BackupExecDeviceMediaService
- BackupExecJobEngine
- BackupExecManagementService
- BackupExecRPCService
- BackupExecVSSProvider
- bcrservice
- bedbg
- BITS
- BlueStripeCollector
- BrokerInfrastructure
- ccEvtMgr
- ccSetMgr
- Cissesrv
- CpqRcmc3
- CSAdmin
- CSAuth
- CSDbSync
- CSLog
- CSMon
- CSRadius
- CSTacacs
- DB2
- DB2-0
- DB2DAS00
- DB2GOVERNOR_DB2COPY1
- DB2INST2
- DB2LICD_DB2COPY1
- DB2MGMTSVC_DB2COPY1
- DB2REMOTECMD_DB2COPY1
- DCAgent
- EhttpSrv
- ekrn
- Enterprise Client Service
- epag
- EPIntegrationService
- EPProtectedService
- epredline
- EPSecurityService
- EPUpdateService
- EraserSvc11710
- ERSvc
- EsgShKernel
- ESHASRV
- Eventlog
- FA_Scheduler
- GoogleChromeElevationService
- gupdate
- gupdatem
- HealthService
- IBMDataServerMgr
- IBMDSServer41
- IDriverT
- IISAdmin
- IMAP4Svc
- ImapiService
- KAVFS
- KAVFSGT
- kavfsslp
- klnagent
- LogProcessorService
- LRSDRVX
- macmnsvc
- masvc
- MBAMService
- MBEndpointAgent
- McAfee SiteAdvisor Enterprise Service
- McAfeeEngineService
- MCAFEEEVENTPARSERSRV
- McAfeeFramework
- McAfeeFrameworkMcAfeeFramework
- MCAFEETOMCATSRV530
- McShield
- McTaskManager
- mfefire
- mfemms
- mfevtp
- mfewc
- MMS
- mozyprobackup
- MsDtsServer
- MsDtsServer100
- MsDtsServer110
- MsDtsServer130
- MSExchangeES
- MSExchangeIS
- MSExchangeMGMT
- MSExchangeMTA
- MSExchangeSA
- MSExchangeSRS
- msftesql$PROD
- MSMQ
- MSOLAP$SQL_2008
- MSOLAP$SYSTEM_BGC
- MSOLAP$TPS
- MSOLAP$TPSAMA
- MSSQL$BKUPEXEC
- MSSQL$CITRIX_METAFRAME
- MSSQL$ECWDB2
- MSSQL$EPOSERVER
- MSSQL$ITRIS
- MSSQL$NET2
- MSSQL$PRACTICEMGT
- MSSQL$PRACTTICEBGC
- MSSQL$PROD
- MSSQL$PROFXENGAGEMENT
- MSSQL$SBSMONITORING
- MSSQL$SHAREPOINT
- MSSQL$SOPHOS
- MSSQL$SQL_2008
- MSSQL$SQLEXPRESS
- MSSQL$SYSTEM_BGC
- MSSQL$TPS
- MSSQL$TPSAMA
- MSSQL$VEEAMSQL2008R2
- MSSQL$VEEAMSQL2012
- MSSQLFDLauncher
- MSSQLFDLauncher$ITRIS
- MSSQLFDLauncher$PROFXENGAGEMENT
- MSSQLFDLauncher$SBSMONITORING
- MSSQLFDLauncher$SHAREPOINT
- MSSQLFDLauncher$SQL_2008
- MSSQLFDLauncher$SYSTEM_BGC
- MSSQLFDLauncher$TPS
- MSSQLFDLauncher$TPSAMA
- MSSQLLaunchpad$ITRIS
- MSSQLSERVER
- MSSQLServerADHelper
- MSSQLServerADHelper100
- MSSQLServerOLAPService
- msvsmon90
- MySQL57
- Net2ClientSvc
- NetDDE
- NetMsmqActivator
- NetSvc
- NimbusWatcherService
- NtLmSsp
- NtmsSvc
- ntrtscan
- odserv
- OracleClientCache80
- ose
- PDVFSService
- POP3Svc
- ProLiantMonitor
- ReportServer
- ReportServer$SQL_2008
- ReportServer$SYSTEM_BGC
- ReportServer$TPS
- ReportServer$TPSAMA
- RESvc
- RSCDsvc
- sacsvr
- SamSs
- SAVAdminService
- SAVService
- SDD_Service
- SDRSVC
- SentinelAgent
- SentinelHelperService
- SentinelStaticEngine
- SepMasterService
- SepMasterServiceMig
- ShMonitor
- Smcinst
- SmcService
- SMTPSvc
- SNAC
- SnowInventoryClient
- SntpService
- Sophos Agent
- Sophos AutoUpdate Service
- Sophos Clean Service
- Sophos Device Control Service
- Sophos File Scanner Service
- Sophos Health Service
- Sophos MCS Agent
- Sophos MCS Client
- Sophos Message Router
- Sophos Safestore Service
- Sophos System Protection Service
- Sophos Web Control Service
- sophossps
- SQL Backups
- SQLAgent$BKUPEXEC
- SQLAgent$CITRIX_METAFRAME
- SQLAgent$CXDB
- SQLAgent$ECWDB2
- SQLAgent$EPOSERVER
- SQLAgent$ITRIS
- SQLAgent$NET2
- SQLAgent$PRACTTICEBGC
- SQLAgent$PRACTTICEMGT
- SQLAgent$PROD
- SQLAgent$PROFXENGAGEMENT
- SQLAgent$SBSMONITORING
- SQLAgent$SHAREPOINT
- SQLAgent$SOPHOS
- SQLAgent$SQL_2008
- SQLAgent$SQLEXPRESS
- SQLAgent$SYSTEM_BGC
- SQLAgent$TPS
- SQLAgent$TPSAMA
- SQLAgent$VEEAMSQL2008R2
- SQLAgent$VEEAMSQL2012
- SQLBrowser
- SQLsafe Backup Service
- SQLsafe Filter Service
- SQLSafeOLRService
- SQLSERVERAGENT
- SQLTELEMETRY
- SQLTELEMETRY$ECWDB2
- SQLTELEMETRY$ITRIS
- SQLWriter
- SSISTELEMETRY130
- SstpSvc
- svcGenericHost
- swi_filter
- swi_service
- swi_update
- swi_update_64
- Symantec
- Symantec System Recovery
- sysdown
- System
- Telemetryserver
- TlntSvr
- TmCCSF
- tmlisten
- TmPfw
- TPAutoConnSvc
- TPVCGateway
- TrueKey
- TrueKeyScheduler
- TrueKeyServiceHelper
- TSM
- UI0Detect
- Veeam Backup Catalog Data Service
- VeeamBackupSvc
- VeeamBrokerSvc
- VeeamCatalogSvc
- VeeamCloudSvc
- VeeamDeploymentService
- VeeamDeploySvc
- VeeamEnterpriseManagerSvc
- VeeamHvIntegrationSvc
- VeeamMountSvc
- VeeamNFSSvc
- VeeamRESTSvc
- VeeamTransportSvc
- VGAuthService
- VMTools
- VMware
- vmware-converter-agent
- vmware-converter-server
- vmware-converter-worker
- VMwareCAFCommAmqpListener
- VMwareCAFManagementAgentHost
- W3Svc
- wbengine
- WdNisSvc
- WebClient
- WinDefend
- WinVNC4
- WRSVC
- Zoolz 2 Service
- Displays the following prompt:
Ransomware Routine
This Ransomware avoids encrypting files with the following strings in their file name:
- .blf
- .config
- .devicemetadata-ms
- .dll
- .exe
- .ico
- .lnk
- .manifest
- .mui
- .regtrans-ms
- .settingcontent-ms
- .sys
- .tlb
- .tmp
- bootmgr
- bootnxt
- desktop.ini
- iconcache.db
- ntuser.dat
- ntuser.dat.log1
- ntuser.dat.log2
- ntuser.ini
- usrclass.dat
- usrclass.dat.log1
- usrclass.dat.log2
It appends the following extension to the file name of the encrypted files:
- .megac0rtx
It drops the following file(s) as ransom note:
- %System Root%\!!!_READ-ME_!!!.txt
NOTES:
- Enable disabled services manually:
- Run Command Prompt
- Run the command: sc config {Service Name} start= auto
SOLUTION
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
Identify and terminate files detected as Ransom.Win32.MEGACORTEX.THGACAI
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- 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
Search and delete this file
- %System Root%\nxahoft_G2.log
Step 5
Scan your computer with your Trend Micro product to clean files detected as Ransom.Win32.MEGACORTEX.THGACAI. 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:
Step 6
Restore encrypted files from backup.
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