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Win32.HLLM.Reset.479
Added to the Dr.Web virus database:
2015-09-14
Virus description added:
2016-10-09
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 execution of the following system utilities:
Windows Update
Windows Security Center
blocks the following features:
User Account Control (UAC)
Windows Security Center
Creates and executes the following:
Executes the following:
'<SYSTEM32>\svchost.exe'
'%TEMP%\byjjjqlf.exe'
Injects code into
the following system processes:
Modifies file system:
Creates the following files:
%TEMP%\nst5.tmp
%TEMP%\nsl6.tmp\System.dll
%TEMP%\nsj3.tmp\System.dll
%TEMP%\byjjjqlf.exe
%ALLUSERSPROFILE%\Application Data\ybfcuwpc.log
<LS_APPDATA>\lawhwilb.log
%TEMP%\ifqydaby.exe
<LS_APPDATA>\jwaroevi\rarexsdb.exe
%TEMP%\UYsBy2yd.FMNp
%TEMP%\xalan-c
%TEMP%\ie6hacks.css
%TEMP%\nsh2.tmp
%TEMP%\embed1419049949.json
%TEMP%\content_5356147.htm891597031.html
%TEMP%\HnJEzYhDZZtfQF6V.m5
%TEMP%\method-servers.jpg
%TEMP%\common.js1903970752.javascript
Sets the 'hidden' attribute to the following files:
%HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe
Network activity:
Connects to:
'de####sasaui.com':443
'vl###lsilgr.com':443
've#####lerqplclarbp.com':443
'vr####txftvpfo.com':443
'gq#####pwgrhxolkhl.com':443
'yl#####kvglamfre.com':443
'nw#####shbwbgdfal.com':443
'ce########ionforinfinitylifeexp.com':443
'74.##5.232.51':80
'hx#####hmnxipiqvi.com':443
'hg####hhebpmkm.com':443
'pl###yms.com':443
UDP:
DNS ASK vr####txftvpfo.com
DNS ASK nb####aairlbtvd.com
DNS ASK yl#####kvglamfre.com
DNS ASK gq#####pwgrhxolkhl.com
DNS ASK xo#####iyerfklhbd.com
DNS ASK yu###wanvky.com
DNS ASK nk####tvubwvp.com
DNS ASK xc#####ywbildnhpg.com
DNS ASK de####sasaui.com
DNS ASK nw#####shbwbgdfal.com
DNS ASK pl###yms.com
DNS ASK google.com
DNS ASK ce########ionforinfinitylifeexp.com
DNS ASK ve#####lerqplclarbp.com
DNS ASK vl###lsilgr.com
DNS ASK hg####hhebpmkm.com
DNS ASK hx#####hmnxipiqvi.com
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