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Win32.HLLM.Reset.400
Added to the Dr.Web virus database:
2012-10-07
Virus description added:
2012-10-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MciGkrwk' = '<LS_APPDATA>\eyqtaont\mcigkrwk.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,,<LS_APPDATA>\eyqtaont\mcigkrwk.exe'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\mcigkrwk.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:
%TEMP%\ekdbmtyq.exe admin
%TEMP%\ekdbmtyq.exe elevate
Executes the following:
Hooks the following functions in System Service Descriptor Table (SSDT):
NtOpenKey, handler: tqgnnosw.sys
NtCreateKey, handler: tqgnnosw.sys
Modifies file system :
Creates the following files:
%TEMP%\tqgnnosw.sys
%WINDIR%\Temp\6decd52f
%WINDIR%\Temp\7fffffb1
<LS_APPDATA>\eyqtaont\mcigkrwk.exe
%TEMP%\ekdbmtyq.exe
%ALLUSERSPROFILE%\Application Data\bjdwbfvf.log
<LS_APPDATA>\niuydqre.log
Sets the 'hidden' attribute to the following files:
%HOMEPATH%\Start Menu\Programs\Startup\mcigkrwk.exe
Deletes the following files:
Network activity:
Connects to:
'ca###lnlrou.com':443
'qb###pyyooh.com':443
'74.##5.232.51':80
'ub####qslhqyy.com':443
'vr####jxorlyen.com':443
'go#####vwvgqlretxd.com':443
'mu####pvxvrq.com':443
'nv###npx.com':443
'vw####yyutodtr.com':443
'ti####axvmhsxtk.com':443
'uk####gdbdkd.com':443
'kh#####kbwhfdiufhaj.com':443
'cx#####efolgkokdqy.com':443
'sw###olov.com':443
'ji####yxjibyd.com':443
'ht#####rhtchwlhwklf.com':443
'ou###vkvn.com':443
'tf###oingy.com':443
'sn#####gcwgaafbtqkt.com':443
UDP:
DNS ASK ya###fejdxs.com
DNS ASK pg###yurf.com
DNS ASK ye#####bbprvybwqn.com
DNS ASK oc###ffwnj.com
DNS ASK pu#####fuxgquhguye.com
DNS ASK tf####kcgigiey.com
DNS ASK ld####dyyxacm.com
DNS ASK xw####iqjdsxk.com
DNS ASK ku###xnntsk.com
DNS ASK pp####dwufrb.com
DNS ASK ls#####qxvmogvxifm.com
DNS ASK sp####davslss.com
DNS ASK sj###aml.com
DNS ASK hc###nlr.com
DNS ASK hn#####vhxvuoeuap.com
DNS ASK de###mdyvt.com
DNS ASK mf###hnjp.com
DNS ASK bx###oxw.com
DNS ASK cp#####hyrueqcyxnvo.com
DNS ASK gv###sip.com
DNS ASK jp####bipilmwsc.com
DNS ASK ga###slj.com
DNS ASK nc#####piawmchfylsy.com
DNS ASK ht#####rhtchwlhwklf.com
DNS ASK sn#####gcwgaafbtqkt.com
DNS ASK ou###vkvn.com
DNS ASK google.com
DNS ASK ti####axvmhsxtk.com
DNS ASK tf###oingy.com
DNS ASK sw###olov.com
DNS ASK cx#####efolgkokdqy.com
DNS ASK uk####gdbdkd.com
DNS ASK ji####yxjibyd.com
DNS ASK kh#####kbwhfdiufhaj.com
DNS ASK mu####pvxvrq.com
DNS ASK go#####vwvgqlretxd.com
DNS ASK em#####wjuvvsvrwj.com
DNS ASK vo###yqdinl.com
DNS ASK du#####abkuappgqxhp.com
DNS ASK vw####yyutodtr.com
DNS ASK ca###lnlrou.com
DNS ASK ub####qslhqyy.com
DNS ASK qb###pyyooh.com
DNS ASK nv###npx.com
DNS ASK vr####jxorlyen.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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