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Win32.HLLM.Reset.484
Added to the Dr.Web virus database:
2015-12-12
Virus description added:
2015-12-12
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,,<LS_APPDATA>\jwaroevi\rarexsdb.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'RarExsdb' = '<LS_APPDATA>\jwaroevi\rarexsdb.exe'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
blocks the following features:
User Account Control (UAC)
Windows Security Center
Creates and executes the following:
Executes the following:
Injects code into
the following system processes:
Modifies file system :
Creates the following files:
%ALLUSERSPROFILE%\Application Data\ybfcuwpc.log
<LS_APPDATA>\lawhwilb.log
<LS_APPDATA>\jwaroevi\rarexsdb.exe
%TEMP%\byjjjqlf.exe
%TEMP%\ifqydaby.exe
Sets the 'hidden' attribute to the following files:
%HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe
Network activity:
Connects to:
'tl####qvearpxq.com':443
'ii###kek.com':443
'mt####dphaqliva.com':443
'tf#####cjoviuvtr.com':443
'fl#####tcedehipox.com':443
'ed#####awurxlobk.com':443
'ub###qkad.com':443
'te##etst.ru':443
'74.##5.232.51':80
'tw####wnrlqcf.com':443
'uu#####wqjujuuprpp.com':443
'wc####ixqutt.com':443
UDP:
DNS ASK tl####qvearpxq.com
DNS ASK ii###kek.com
DNS ASK mt####dphaqliva.com
DNS ASK tf#####cjoviuvtr.com
DNS ASK fl#####tcedehipox.com
DNS ASK ed#####awurxlobk.com
DNS ASK ub###qkad.com
DNS ASK te##etst.ru
DNS ASK google.com
DNS ASK tw####wnrlqcf.com
DNS ASK uu#####wqjujuuprpp.com
DNS ASK wc####ixqutt.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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