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Win32.Expiro.134

Added to the Dr.Web virus database: 2017-07-16

Virus description added: 2019-10-01

Technical Information

To ensure autorun and distribution

Creates the following services

[<HKLM>\System\CurrentControlSet\Services\AdobeARMservice] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\AdobeFlashPlayerUpdateSvc] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\clr_optimization_v2.0.50727_32] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\clr_optimization_v2.0.50727_64] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\clr_optimization_v4.0.30319_32] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\clr_optimization_v4.0.30319_64] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\COMSysApp] 'Start' = '00000002'

Changes the following executable system files

%WINDIR%\syswow64\macromed\flash\flashplayerupdateservice.exe
<SYSTEM32>\alg.exe
%WINDIR%\syswow64\svchost.exe
%WINDIR%\microsoft.net\framework\v2.0.50727\mscorsvw.exe
%WINDIR%\microsoft.net\framework64\v2.0.50727\mscorsvw.exe
%WINDIR%\microsoft.net\framework\v4.0.30319\mscorsvw.exe
%WINDIR%\microsoft.net\framework64\v4.0.30319\mscorsvw.exe
%WINDIR%\syswow64\dllhost.exe
<SYSTEM32>\dllhost.exe
%WINDIR%\ehome\ehrecvr.exe

Infects the following executable files

%CommonProgramFiles(x86)%\adobe\arm\1.0\armsvc.exe
%WINDIR%\syswow64\macromed\flash\flashplayerupdateservice.exe
<SYSTEM32>\alg.exe
%WINDIR%\syswow64\svchost.exe
%WINDIR%\microsoft.net\framework\v2.0.50727\mscorsvw.exe
%WINDIR%\microsoft.net\framework64\v2.0.50727\mscorsvw.exe
%WINDIR%\microsoft.net\framework\v4.0.30319\mscorsvw.exe
%WINDIR%\microsoft.net\framework64\v4.0.30319\mscorsvw.exe
%WINDIR%\syswow64\dllhost.exe
<SYSTEM32>\dllhost.exe
%WINDIR%\ehome\ehrecvr.exe

Modifies file system

Creates the following files

%CommonProgramFiles(x86)%\adobe\arm\1.0\oaloioff.tmp
%WINDIR%\syswow64\macromed\flash\peplmpad.tmp
<SYSTEM32>\cpbfggpq.tmp
%WINDIR%\syswow64\milbcjcj.tmp
%WINDIR%\microsoft.net\framework\v2.0.50727\dojfipgc.tmp
%WINDIR%\microsoft.net\framework64\v2.0.50727\jadpipjd.tmp
%WINDIR%\microsoft.net\framework\v4.0.30319\hfeeoofj.tmp
%WINDIR%\microsoft.net\framework64\v4.0.30319\hdfjdjek.tmp
%WINDIR%\syswow64\onkbhadm.tmp
<SYSTEM32>\ojlicmcl.tmp
%WINDIR%\ehome\pdaegfpg.tmp

Deletes the following files

%CommonProgramFiles(x86)%\adobe\arm\1.0\oaloioff.tmp
%WINDIR%\syswow64\macromed\flash\peplmpad.tmp
<SYSTEM32>\cpbfggpq.tmp
%WINDIR%\syswow64\milbcjcj.tmp
%WINDIR%\microsoft.net\framework\v2.0.50727\dojfipgc.tmp
%WINDIR%\microsoft.net\framework64\v2.0.50727\jadpipjd.tmp
%WINDIR%\microsoft.net\framework\v4.0.30319\hfeeoofj.tmp
%WINDIR%\microsoft.net\framework64\v4.0.30319\hdfjdjek.tmp
%WINDIR%\syswow64\onkbhadm.tmp
<SYSTEM32>\ojlicmcl.tmp
%WINDIR%\ehome\pdaegfpg.tmp

Miscellaneous

Executes the following

'%WINDIR%\syswow64\macromed\flash\flashplayerupdateservice.exe'
'<SYSTEM32>\dllhost.exe' /Processid:{02D4B3F1-FD88-11D1-960D-00805FC79235}