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Trojan.MulDrop9.41325
Added to the Dr.Web virus database:
2019-08-02
Virus description added:
2019-08-06
Technical Information
To ensure autorun and distribution
Creates or modifies the following files
%ALLUSERSPROFILE%\start menu\programs\startup\ocs inventory ng systray.lnk
Creates the following services
[<HKLM>\System\CurrentControlSet\Services\OCS Inventory Service] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\OCS Inventory Service] 'ImagePath' = '%ProgramFiles%\OCS Inventory Agent\OcsService.exe'
Modifies file system
Creates the following files
%TEMP%\rarsfx0\ocs-ng-setup.exe
%ProgramFiles%\ocs inventory agent\mfcm90.dll
%ProgramFiles%\ocs inventory agent\mfcm90u.dll
%ProgramFiles%\ocs inventory agent\ziparchive.dll
%ProgramFiles%\ocs inventory agent\zlib1.dll
%ProgramFiles%\ocs inventory agent\comhttp.dll
%ProgramFiles%\ocs inventory agent\ocswmi.dll
%ProgramFiles%\ocs inventory agent\sysinfo.dll
%ProgramFiles%\ocs inventory agent\ocsinventory front.dll
%ProgramFiles%\ocs inventory agent\ocsinventory.exe
%ProgramFiles%\ocs inventory agent\download.exe
%ProgramFiles%\ocs inventory agent\ocssystray.exe
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\rand
%ProgramFiles%\ocs inventory agent\ocsnotifyuser.exe
%ProgramFiles%\ocs inventory agent\ocs-transform.xsl
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\admininfo.conf
%TEMP%\nsi3.tmp\ns6.tmp
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\ocsinventory.log
%TEMP%\nsi3.tmp\simplefc.dll
%TEMP%\nsi3.tmp\ns7.tmp
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\ocsinventory.dat
%TEMP%\nsi3.tmp\ns8.tmp
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\ocsinventory.log.bak
%ProgramFiles%\ocs inventory agent\mfc90u.dll
%ProgramFiles%\ocs inventory agent\ocsservice.exe
%ProgramFiles%\ocs inventory agent\mfc90.dll
%TEMP%\nsi3.tmp\nsexec.dll
%TEMP%\nsh2.tmp
%TEMP%\rarsfx0\ocs-ng-windows-agent-setup.log
%TEMP%\nsi3.tmp\system.dll
%TEMP%\nsi3.tmp\server.ini
%TEMP%\nsi3.tmp\proxy.ini
%TEMP%\nsi3.tmp\agent.ini
%TEMP%\nsi3.tmp\local.ini
%TEMP%\nsi3.tmp\splash.bmp
%TEMP%\nsi3.tmp\setacl.exe
%TEMP%\nsi3.tmp\userinfo.dll
%TEMP%\nsi3.tmp\ns4.tmp
%ProgramFiles%\ocs inventory agent\msvcr90.dll
%TEMP%\nsi3.tmp\ns5.tmp
%TEMP%\nsi3.tmp\services.dll
%TEMP%\nsi3.tmp\killprocdll.dll
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\ocsinventory.ini
%ProgramFiles%\ocs inventory agent\libcurl.dll
%ProgramFiles%\ocs inventory agent\libeay32.dll
%ProgramFiles%\ocs inventory agent\ssleay32.dll
%ProgramFiles%\ocs inventory agent\microsoft.vc90.crt.manifest
%ProgramFiles%\ocs inventory agent\msvcm90.dll
%ProgramFiles%\ocs inventory agent\msvcp90.dll
%ProgramFiles%\ocs inventory agent\microsoft.vc90.mfc.manifest
%ProgramFiles%\ocs inventory agent\uninst.exe
Sets the 'hidden' attribute to the following files
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\admininfo.conf
Deletes the following files
%TEMP%\nsi3.tmp\ns4.tmp
%TEMP%\nsi3.tmp\userinfo.dll
%TEMP%\nsi3.tmp\system.dll
%TEMP%\nsi3.tmp\splash.bmp
%TEMP%\nsi3.tmp\simplefc.dll
%TEMP%\nsi3.tmp\setacl.exe
%TEMP%\nsi3.tmp\services.dll
%TEMP%\nsi3.tmp\server.ini
%TEMP%\nsi3.tmp\proxy.ini
%TEMP%\rarsfx0\ocs-ng-setup.exe
%TEMP%\nsi3.tmp\nsexec.dll
%TEMP%\nsi3.tmp\killprocdll.dll
%TEMP%\nsi3.tmp\agent.ini
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\rand
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\ocsinventory.log
%TEMP%\nsi3.tmp\ns8.tmp
%TEMP%\nsi3.tmp\ns7.tmp
%TEMP%\nsi3.tmp\ns6.tmp
%TEMP%\nsi3.tmp\ns5.tmp
%TEMP%\nsi3.tmp\local.ini
%TEMP%\rarsfx0\ocs-ng-windows-agent-setup.log
Substitutes the following files
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\ocsinventory.log
%ALLUSERSPROFILE%\application data\ocs inventory ng\agent\rand
Network activity
UDP
DNS ASK in#.##ksystem.com
Miscellaneous
Searches for the following windows
ClassName: 'EDIT' WindowName: ''
Creates and executes the following
'%TEMP%\rarsfx0\ocs-ng-setup.exe' /S /SERVER=http://in#.##ksystem.com/ocsinventory /TAG="BO"/DEBUG /NOSPLASH /NOW
'%TEMP%\nsi3.tmp\setacl.exe' -on "%ALLUSERSPROFILE%\Application Data\OCS Inventory NG\Agent\Download" -ot file -actn setprot -op "dacl:np;sacl:np" -actn clear -clr "dacl,sacl" -actn rstchldrn -rst "dacl,sacl"
'%TEMP%\nsi3.tmp\ns4.tmp' SetACL -on "%ALLUSERSPROFILE%\Application Data\OCS Inventory NG\Agent" -ot file -actn ace -ace "n:S-1-5-32-545;p:read_ex,change;s:y;m:set" -ace "n:S-1-5-32-547;p:read_ex,change;s:y;m:set" -actn...
'%ProgramFiles%\ocs inventory agent\ocsservice.exe' -install
'%TEMP%\nsi3.tmp\ns5.tmp' SetACL.exe -on "%ALLUSERSPROFILE%\Application Data\OCS Inventory NG\Agent\Download" -ot file -actn setprot -op "dacl:np;sacl:np" -actn clear -clr "dacl,sacl" -actn rstchldrn -rst "dacl,sacl"
'%ProgramFiles%\ocs inventory agent\ocsinventory.exe' /SAVE_CONF /SERVER=http://in#.##ksystem.com/ocsinventory /USER= /PWD= /SSL=1 /CA="cacert.pem" /PROXY_TYPE=0 /PROXY= /PROXY_PORT= /PROXY_USER= /PROXY_PWD= /DEBUG=0 /TAG="BO"
'%TEMP%\nsi3.tmp\setacl.exe' -on "%ALLUSERSPROFILE%\Application Data\OCS Inventory NG\Agent" -ot file -actn ace -ace "n:S-1-5-32-545;p:read_ex,change;s:y;m:set" -ace "n:S-1-5-32-547;p:read_ex,change;s:y;m:set" -actn clear ...
'%ProgramFiles%\ocs inventory agent\ocsservice.exe'
'%TEMP%\nsi3.tmp\ns7.tmp' %ProgramFiles%\OCS Inventory Agent\ocsinventory.exe
'%TEMP%\nsi3.tmp\ns8.tmp' %ProgramFiles%\OCS Inventory Agent\OcsService.exe -install
'%ProgramFiles%\ocs inventory agent\ocsinventory.exe'
'%TEMP%\nsi3.tmp\ns6.tmp' "%ProgramFiles%\OCS Inventory Agent\ocsinventory.exe" /SAVE_CONF /SERVER=http://in#.##ksystem.com/ocsinventory /USER= /PWD= /SSL=1 /CA="cacert.pem" /PROXY_TYPE=0 /PROXY= /PROXY_PORT= /PROXY_USE...
'%TEMP%\nsi3.tmp\ns4.tmp' SetACL -on "%ALLUSERSPROFILE%\Application Data\OCS Inventory NG\Agent" -ot file -actn ace -ace "n:S-1-5-32-545;p:read_ex,change;s:y;m:set" -ace "n:S-1-5-32-547;p:read_ex,change;s:y;m:set" -actn...' (with hidden window)
'%TEMP%\nsi3.tmp\ns7.tmp' %ProgramFiles%\OCS Inventory Agent\ocsinventory.exe' (with hidden window)
'%TEMP%\nsi3.tmp\ns8.tmp' %ProgramFiles%\OCS Inventory Agent\OcsService.exe -install' (with hidden window)
'%TEMP%\nsi3.tmp\ns6.tmp' "%ProgramFiles%\OCS Inventory Agent\ocsinventory.exe" /SAVE_CONF /SERVER=http://in#.##ksystem.com/ocsinventory /USER= /PWD= /SSL=1 /CA="cacert.pem" /PROXY_TYPE=0 /PROXY= /PROXY_PORT= /PROXY_USE...' (with hidden window)
'%TEMP%\nsi3.tmp\ns5.tmp' SetACL.exe -on "%ALLUSERSPROFILE%\Application Data\OCS Inventory NG\Agent\Download" -ot file -actn setprot -op "dacl:np;sacl:np" -actn clear -clr "dacl,sacl" -actn rstchldrn -rst "dacl,sacl"' (with hidden window)
'<SYSTEM32>\cmd.exe' /c "%ProgramFiles%\OCS Inventory Agent\ocsinventory.exe"' (with hidden window)
Executes the following
'<SYSTEM32>\cmd.exe' /c "%ProgramFiles%\OCS Inventory Agent\ocsinventory.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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