Ransom.Win32.SHELLRUN.YPCHDT

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.

However, as of this writing, the said sites are inaccessible.

It drops files as ransom note.

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 files:

• %System%\NTSD.exe → If the following processes are running:
  • sqlwriter.exe
  • sqlservr.exe
  • sqlceip.exe
  • MsDtsSrvr.exe
  • msmdsrv.exe
• %System%\user.txt
• %System%\pass.txt
• %Public%\user.txt
• %Public%\pass.txt

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %Public% is the folder that serves as a repository of files or folders common to all users, which is usually C:\Users\Public in Windows Vista, 7, and 8.)

It adds the following processes:

• NET stop MSSQL$SQLEXPRESS /Y
• NET STOP acrsch2svc /Y
• NET STOP acronisagent /Y
• NET STOP arsm /Y
• NET STOP FirebirdServerDefaultInstance /Y
• NET STOP FirebirdGuardianDefaultInstance /Y
• NET STOP MuzzleServer /Y
• sc stop \"Acronis VSS Provider\" /y
• sc stop \"Enterprise Client Service\" /y
• sc stop \"Sophos Agent\" /y
• sc stop \"Sophos AutoUpdate Service\" /y
• sc stop \"Sophos Clean Service\" /y
• sc stop \"Sophos Device Control Service\"
• sc stop \"Sophos File Scanner Service\" /y
• sc stop \"Sophos Health Service\" /y
• sc stop \"Sophos MCS Agent\" /y
• sc stop \"Sophos MCS Client\" /y
• sc stop \"Sophos Message Router\" /y
• sc stop \"Sophos Safestore Service\" /y
• sc stop \"Sophos System Protection Service\" /y
• sc stop \"Sophos Web Control Service\" /y
• sc stop \"SQLsafe Backup Service\" /y
• sc stop \"SQLsafe Filter Service\" /y
• sc stop \"Symantec System Recovery\" /y
• sc stop \"Veeam Backup Catalog Data Service\"
• sc stop AcronisAgent
• sc stop AcrSch2Svc /y
• sc stop Antivirus /y
• sc stop ARSM /y
• sc stop BackupExecAgentAccelerator /y
• sc stop BackupExecAgentBrowser
• sc stop BackupExecDeviceMediaService /y
• sc stop BackupExecJobEngine /y
• sc stop BackupExecManagementService
• sc stop BackupExecRPCService /y
• sc stop BackupExecVSSProvider /y
• sc stop bedbg /y
• sc stop DCAgent
• sc stop EPSecurityService /y
• sc stop EPUpdateService /y
• sc stop EraserSvc11710 /y
• sc stop EsgShKernel /y
• sc stop FA_Scheduler
• sc stop IISAdmin /y
• sc stop IMAP4Svc /y
• sc stop macmnsvc /y
• sc stop masvc /y
• sc stop MBAMService /y
• sc stop MBEndpointAgent /y
• sc stop McAfeeEngineService /y
• sc stop McAfeeFramework /y
• sc stop McAfeeFrameworkMcAfeeFramework /y
• sc stop McShield /y
• sc stop McTaskManager /y
• sc stop mfemms /y
• sc stop mfevtp /y
• sc stop MMS
• sc stop mozyprobackup /y
• sc stop MsDtsServer /y
• sc stop MsDtsServer100 /y
• sc stop MsDtsServer110 /y
• sc stop MSExchangeFS
• sc stop MSExchangeIS
• sc stop MSExchangeMGMT /y
• sc stop MSExchangeMTA /y
• sc stop MSExchangeSA
• sc stop MSExchangeSRS /y
• sc stop MSSQL$BKUPEXEC /y
• sc stop MSSQL$ECWDB2
• sc stop MSSQL$PRACTICEMGT /y
• sc stop MSSQL$PRACTICEBGC /y
• sc stop MSSQL$PROFXENGAGEMENT /y
• sc stop MSSQL$SBSMONITORING /y
• sc stop MSSQL$SHAREPOINT /y
• sc stop MSSQL$SQL_2008 /y
• sc stop MSSQL$SYSTEM_BGC /y
• sc stop MSSQL$TPS /y
• sc stop MSSQL$TPSAMA
• sc stop MSSQL$VEEAMSQL2008R2 /y
• sc stop MSSQL$VEEAMSQL2012
• sc stop MSSQLFDLauncher$PROFXENGAGEMENT /y
• sc stop MSSQLFDLauncher$SBSMONITORING /y
• sc stop MSSQLFDLauncher$SHAREPOINT /y
• sc stop MSSQLFDLauncher$SQL_2008 /y
• sc stop MSSQLFDLauncher$SYSTEM_BGC /y
• sc stop MSSQLFDLauncher$TPS /y
• sc stop MSSQLFDLauncher$TPSAMA
• sc stop MSSQLSERVER /y
• sc stop MSSQLServerADHelper100
• sc stop MSSQLServerOLAPService
• sc stop MySQL80
• sc stop ntrtscan /y
• sc stop OracleClientCache80 /y
• sc stop PDVFSService
• sc stop POP3Svc
• sc stop ReportServer
• sc stop ReportServer$SQL_2008 /y
• sc stop ReportServer$SYSTEM_BGC /y
• sc stop ReportServer$TPS /y
• sc stop ReportServer$TPSAMA /y
• sc stop RESvc /y
• sc stop sacsvr /y
• sc stop SamSs /y
• sc stop SAVAdminService /y
• sc stop SAVService /y
• sc stop SDRSVC /y
• sc stop SepMasterService /y
• sc stop ShMonitor /y
• sc stop Smcinst
• sc stop SmcService /y
• sc stop SMTPSvc
• sc stop SNAC /y
• sc stop SntpService /y
• sc stop SQLAGENT$ /y
• sc stop SQLAGENT$BKUPEXEC /y
• sc stop SQLAGENT$ECWDB2 /y
• sc stop SQLAGENT$PRACTICEBGC /y
• sc stop SQLAGENT$PRACTICEMGT /y
• sc stop SQLAGENT$PROFXENGAGEMENT /y
• sc stop SQLAGENT$SBSMONITORING
• sc stop SQLAGENT$SHAREPOINT /y
• sc stop SQLAGENT$SQL_2008 /y
• sc stop SQLAGENT$SYSTEM_BGC /y
• sc stop SQLAGENT$TPS
• sc stop SQLAGENT$TPSAMA /y
• sc stop SQLAGENT$VEEAMSQL2008R2 /y
• sc stop SQLAGENT$VEEAMSQL2012 /y
• sc stop SQLBrowser /y
• sc stop SQLSafeORLService /y
• sc stop SQLSERVERAGENT /y
• sc stop SQLTELEMETRY
• sc stop SQLTELEMETRY$ECWDB2 /y
• sc stop SQLWriter /y
• sc stop SstpSvc
• sc stop svcGenericHost /y
• sc stop swi_filter /y
• sc stop swi_service /y
• sc stop swi_update_64 /y
• sc stop TmCCSF /y
• sc stop tmlisten /y
• sc stop TrueKey
• sc stop TrueKeySheduler /y
• sc stop TrueKeyServiceHelper /y
• sc stop UIODetect /y
• sc stop VeeamBackupSvc /y
• sc stop VeeamBrokerSvc /y
• sc stop VeeamCatalogSvc /y
• sc stop VeeamCloudSvc /y
• sc stop VeeamDeploymentSvc
• sc stop VeeamDeploySvc /y
• sc stop VeeamEnterpriseManagerSvc /y
• sc stop VeeamMountSvc /y
• sc stop VeeamNFSSvc /y
• sc stop VeeamRESTSvc
• sc stop VeeamTransportSvc /y
• sc stop W3Svc /y
• sc stop wbengine /y
• sc stop WRSVC /y
• sc stop SQLAgent$VEEAMSQL2008R2 /y
• sc stop VeeamHvIntegrationSvc /y
• sc stop swi_update /y
• sc stop SQLAgent$CXDB /y
• sc stop SQLAgent$CITRIX_METAFRAME /y
• sc stop \"SQL Backups\" /y
• sc stop MSSQL$PROD /y
• sc stop \"Zoolz 2 Service Backups\"
• sc stop MSSQLServerADHelper /y
• sc stop SQLAgent$PROD /y
• sc stop msftesql$PROD /y
• sc stop NetMsmqActivator /y
• sc stop EhttpSrv /y
• sc stop ekrn /y
• sc stop ESHASRV
• sc stop MSSQL$SOPHOS
• sc stop SQLAgent$SOPHOS /y
• sc stop AVP
• sc stop klnagent /y
• sc stop MSSQL$SQLEXPRESS /y
• sc stop SQLAgent$SQLEXPRESS /y
• sc stop kavfsslp /y
• sc stop KAVFSGT
• sc stop KAVFS /y
• sc stop mfefire
• wmic shadowcopy delete
• cmd.exe /c %Public%\Ladon.exe [IP Address]/24 MssqlScan

(Note: %Public% is the folder that serves as a repository of files or folders common to all users, which is usually C:\Users\Public in Windows Vista, 7, and 8.)

It injects codes into the following process(es):

• cmd.exe
• notepad.exe
• mmc.exe
• rekeywiz.exe
• ctfmon.exe

Process Termination

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

• mepocs
• memtas
• veeam
• svc$
• backup
• sql
• vss
• msexchange
• sql$
• mysql
• mysql$
• sophos
• MSExchange
• MSExchange$
• WSBExchange
• PDVFSService
• BackupExecVSSProvider
• BackupExecAgentAccelerator
• BackupExecAgentBrowser
• BackupExecDiveciMediaService
• BackupExecJobEngine
• BackupExecManagementService
• BackupExecRPCService
• GxBlr
• GxVss
• GxClMgrS
• GxCVD
• GxCIMgr
• GXMMM
• GxVssHWProv
• GxFWD
• SAPService
• SAP
• SAP$
• SAPD$
• SAPHostControl
• SAPHostExec
• QBCFMonitorService
• QBDBMgrN
• QBIDPService
• AcronisAgent
• VeeamNFSSvc
• VeeamDeploymentService
• VeeamTransportSvc
• MVArmor
• MVarmor64
• VSNAPVSS
• AcrSch2Svc

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

• sqlwriter.exe
• sqlservr.exe
• sqlceip.exe
• MsDtsSrvr.exe
• msmdsrv.exe
  It terminates these processes by executing NTSD -c q -p [Process ID]

Download Routine

This Ransomware connects to the following URL(s) to download its component file(s):

• http://{BLOCKED}aridper.com/Ladongo.jpg
• http://{BLOCKED}aridper.com/newip.txt

It saves the files it downloads using the following names:

• %Public%\Ladon.exe

(Note: %Public% is the folder that serves as a repository of files or folders common to all users, which is usually C:\Users\Public in Windows Vista, 7, and 8.)

Information Theft

This Ransomware gathers the following data:

• Computer Name
• Processor Name
• OS Version
• Manufacturer
• Current Day and Year
• Running Processes

Other Details

This Ransomware encrypts files with the following extensions:

• 123
• 602
• 3dm
• 3ds
• 3g2
• 3gp
• 7z
• accdb
• aes
• ai
• ARC
• asc
• asf
• asm
• asp
• avi
• backup
• bak
• bat
• bmp
• brd
• bz2
• c
• cgm
• class
• cmd
• cpp
• crt
• cs
• csr
• csv
• dat
• db
• dbf
• dch
• der
• dif
• dip
• djvu
• doc
• docb
• docm
• docx
• dot
• dotm
• dotx
• dwg
• ec
• edb
• eml
• fla
• flv
• frm
• gif
• gpg
• gz
• h
• hwp
• ibd
• iso
• jar
• java
• jpeg
• jpg
• js
• jsp
• key
• lay
• lay6
• ldf
• m3u
• m4u
• max
• mdb
• mdf
• mid
• mkv
• mml
• mov
• mp3
• mp4
• mpeg
• mpg
• msg
• myd
• myi
• nef
• odb
• odg
• odp
• ods
• odt
• onetoc2
• ost
• otg
• otp
• ots
• ott
• p12
• PAQ
• pas
• pdf
• pem
• pfx
• php
• pl
• png
• pot
• potm
• potx
• ppam
• pps
• ppsm
• ppsx
• ppt
• pptm
• pptx
• ps1
• psd
• pst
• rar
• raw
• rb
• rtf
• sch
• sh
• sldm
• sldx
• slk
• sln
• snt
• sql
• sqlite3
• sqlitedb
• stc
• std
• sti
• stw
• suo
• svg
• swf
• sxc
• sxd
• sxi
• sxm
• sxw
• tar
• tbk
• tgz
• tif
• tiff
• txt
• uop
• uot
• vb
• vbs
• vcd
• vdi
• vmdk
• vmx
• vob
• vsd
• vsdx
• wav
• wb2
• wk1
• wks
• wma
• wmv
• xlc
• xlm
• xls
• xlsb
• xlsm
• xlsx
• xlt
• xltm
• xltx
• xlw
• zip

It requires the following additional components to properly run:

• %All Users Profile%\run.txt → Detected as Trojan.Win32.SHELLINJECT.YPCHDT
• %All Users Profile%\abc.jpg

(Note: %All Users Profile% is the common user's profile folder, which is usually C:\Documents and Settings\All Users on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit). )

It does the following:

• Checks if these files are existing:
  • %Windows%\hhhpp1999
  • %Windows%\hhhpp011
• It will only proceed with its encryption routine if the current day is Thursday or Friday
• It avoids encrypting the C drive
• It uses the following credentials to brute-force vulnerable systems:
  • P@ssw0rd
  • Admin123
  • sa123@
  • sa@1
  • sa12345!
  • 525464
  • sa123
  • sa@1234
  • Sa123
  • 123
  • sa@123
  • admin@123
  • sss
  • sql@123
  • enter
  • Password@123
  • 12345
  • sa
  • 1234
  • root@123
  • abc@123
  • server
  • P@$$w0rd
  • password@123
  • Password123
  • regent
  • admin
  • Pa$$w0rd
  • 123456
  • test@123
  • matrix
  • sql@1234
  • test
  • Password1
  • admin123
  • sql2008
  • Passw0rd
  • smooth
  • Pa55w0rd
  • 123456789
  • user
  • Test@123
  • root
  • scott
  • Passw0rd11
  • sa@2017
  • manager
  • p@$$w0rd
  • p@ssw0rd
  • system
  • Password@
  • sasa
  • sa1
  • admin1234
  • a
  • sa1234
  • TEST
  • caonima
  • 1122334455
  • password
  • apollo
  • 987654321
  • college
  • star
  • P@ssw0rd!!!
  • sql
  • P@ssword
  • Password@1234
  • abcd1234
  • 54321
  • test123
  • sa123456!
  • pass
  • sasasasa
  • 321321
  • Changeme_123
  • 1QAZ2wsx
  • 1qaz@wsx
  • !QAZ2wsx
  • Passw0rd321
  • Aa123456.
  • p@ssw0rd!
  • P@ssw0rd123
  • 123.com
  • aaaAAA111
  • abc123456
  • Password@1
  • P@ssw0rd@123
  • 1qaz@WSX
  • P@$$w0rd1234
  • qwe123!@#
  • Melbourne@719%
  • 123.
  • password01!
  • jlkdkfdj34#$
  • 101010
  • smart
  • 123456123
  • 9379992
  • saas
  • 1234567890
  • root123
  • 222222
  • 1
  • toshiba
  • 159951
  • P@ssword1
  • P@ssw0rd1
  • admin123456
  • 123!@#qwe
  • 9999
  • 1qazXSW@
  • brain
  • password@12345
  • letmein
  • 123123
  • p@ssw0rd123
  • 123abc
  • adminadmin
  • abc.123
  • zxcvbn
  • Passw0rd!
  • aaaaaa
  • security
  • a123456
  • sa2017
  • qqq111
  • asd123!
  • 1980
  • qwerty123
  • pa$$w0rd
  • PASSWORD
  • football
  • welcome
  • 12
  • 21
  • 321
  • 123321
  • 111111
  • 654321
  • 666666
  • 121212
  • 000000
  • 888888
  • 1111
  • 555555
  • 1234567
  • 12345678
  • abc123
  • abcd@1234
  • p@ssword
  • P@SSWORD
  • P@SSW0RD
  • P@$$word
  • iloveyou
  • monkey
  • login
  • passw0rd
  • master
  • hello
  • qazwsx
  • password1
  • qwerty
  • baseball
  • qwertyuiop
  • superman
  • 1qaz2wsx
  • fuckyou
  • 123qwe
  • love
  • administrator
  • 123123123
  • 88888888
  • 111111111
  • 112233
  • 123456a
  • 5201314
  • 1q2w3e4r
  • qwe123
  • a123456789
  • 123456789a
  • dragon
  • sunshine
  • princess
  • !@#$%^&*
  • charlie
  • aa123456
  • Aa123456
  • homelesspa
  • 1q2w3e4r5t
  • sql2005
  • sa2008
  • abc
  • abcdefg
  • sapassword
  • Aa12345678
  • ABCabc123
  • sqlpassword
  • 1qaz!QAZ
  • ksa8hd4m@~#$%^&*()
  • 4yqbm4m`~!@~#$%^&*().;
  • 4yqbm4m`~!@~#$%^&*().;
  • A123456
  • database
  • saadmin
  • sql2000
  • sql123
  • sasasa
  • adminsa
  • sql2010
  • sa12345
  • sa123456
  • sqlpass

However, as of this writing, the said sites are inaccessible.

Mobile Malware Routine

This Ransomware sends the gathered information via HTTP POST to the following URL(s):

• http://{BLOCKED}aridper.com/111/upload.php

Ransomware Routine

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

• HOW_TO_DECRYPT
• LOCK
• ddeos

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

• NVIDIA
• Intel
• C:\Windows

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

• .ddeos

It drops the following file(s) as ransom note:

• %Public%\HOW_TO_DECRYPT.txt
• {Drive Letter}\HOW_TO_DECRYPT.txt
• {Encrypted Directory}\HOW_TO_DECRYPT.txt