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Trojan.KeyLogger.16222
Added to the Dr.Web virus database:
2012-10-30
Virus description added:
2012-10-31
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\MSWinIsmSys] 'Logon' = 'CC_MSWinLeventMngment_1'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\MSWinIsmSys] 'DllName' = '<SYSTEM32>\dMSCCertSecure_InstanceNet32.dll'
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\Windows Installable Resource Access Services] 'Start' = '00000002'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe' = '%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe:*:Enabled:Microsoft Dynamic Resource Server'
Creates and executes the following:
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe ddi
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe infn
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe run
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe start
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe gui
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe topaz1
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe isadmin
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe ten10
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe psr1
%CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe psr
Executes the following:
%WINDIR%\regedit.exe /S "%CommonProgramFiles%\MICROS~2\dpdrvmocpr.reg"
<SYSTEM32>\rundll32.exe <SYSTEM32>\dMSCCertSecure_InstanceNet32.dll CC_WinSysSet
%WINDIR%\regedit.exe /S "%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.reg"
Injects code into
the following system processes:
Installs hooks to intercept notifications
on keystrokes:
Handler for all processes: %CommonProgramFiles%\MICROS~2\sMSCCertSecure_InstanceNet32.dll
Modifies file system :
Creates the following files:
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys
<SYSTEM32>\wisdeskdc1.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\sismhelper21.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\cspmc21.dll
<SYSTEM32>\dpdrvmocpr.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\uMSCCertSecure_InstanceNet32.exe
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.reg
<DRIVERS>\dpdrvmocpr.sys
%WINDIR%\inf\dpdrvmocpr.inf
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll.xp
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys.xp
%TEMP%\nsc2.tmp\System.dll
%TEMP%\nsc2.tmp\NSISArray.dll
%TEMP%\nsc2.tmp\UAC.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.inf
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys.2003
%CommonProgramFiles%\Microsoft Temporary File Cache Files\widmsis1.exe
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll.2003
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll.2000
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys.2000
Sets the 'hidden' attribute to the following files:
<SYSTEM32>\dMSCCertSecure_InstanceNet32.dll
Deletes the following files:
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys.2003
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys.2000
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.sys.xp
%TEMP%\nsc2.tmp\UAC.dll
%TEMP%\nsc2.tmp\System.dll
%TEMP%\nsc2.tmp\NSISArray.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.reg
%CommonProgramFiles%\Microsoft Temporary File Cache Files\cMSCCertSecure_InstanceNet32.dll
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll.2000
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.inf
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll.xp
%CommonProgramFiles%\Microsoft Temporary File Cache Files\dpdrvmocpr.dll.2003
Moves the following files:
from %CommonProgramFiles%\Microsoft Temporary File Cache Files\cspmc21.dll to %CommonProgramFiles%\Microsoft Temporary File Cache Files\cMSCCertSecure_InstanceNet32.dll
from <SYSTEM32>\wisdeskdc1.dll to <SYSTEM32>\dMSCCertSecure_InstanceNet32.dll
from %CommonProgramFiles%\Microsoft Temporary File Cache Files\widmsis1.exe to %CommonProgramFiles%\Microsoft Temporary File Cache Files\wMSCCertSecure_InstanceNet32.exe
from %CommonProgramFiles%\Microsoft Temporary File Cache Files\sismhelper21.dll to %CommonProgramFiles%\Microsoft Temporary File Cache Files\sMSCCertSecure_InstanceNet32.dll
Miscellaneous:
Searches for the following windows:
ClassName: '' WindowName: 'Hardware Installation'
ClassName: '' WindowName: 'Software Installation'
ClassName: 'RegEdit_RegEdit' WindowName: ''
ClassName: '' WindowName: 'Digital Signature Not Found'
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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