Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'RarExsdb' = '<LS_APPDATA>\jwaroevi\rarexsdb.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,,<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] 'EnableFirewall' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
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
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system:
Creates the following files:
- %TEMP%\byjjjqlf.exe
- %TEMP%\ifqydaby.exe
- <LS_APPDATA>\jwaroevi\rarexsdb.exe
- %ALLUSERSPROFILE%\Application Data\ybfcuwpc.log
- <LS_APPDATA>\lawhwilb.log
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe
Network activity:
Connects to:
- '74.##5.232.51':80
- 'ja####ainproca.com':443
UDP:
- DNS ASK google.com
- DNS ASK at###aay.com
- DNS ASK pa####cuufhrjh.com
- DNS ASK ym#####rtovnjeqihn.com
- DNS ASK vm####vwmrhqxug.com
- DNS ASK ut#####igxbxcevrxvf.com
- DNS ASK fk#####lxhdcgywxc.com
- DNS ASK uf###bbq.com
- DNS ASK wx####srbkts.com
- DNS ASK nw#####ywsiocywtw.com
- DNS ASK iu###icf.com
- DNS ASK rg###cyckb.com
- DNS ASK mw#####otaobquusk.com
- DNS ASK yt###anl.com
- DNS ASK ly###wolu.com
- DNS ASK we####wjxrgs.com
- DNS ASK eh###tvtvm.com
- DNS ASK mi#####fiyuilhrwu.com
- DNS ASK hf###ttpnf.com
- DNS ASK yn####ylmbfywt.com
- DNS ASK df###dyhdg.com
- DNS ASK da###waydyn.com
- DNS ASK by####ydgqws.com
- DNS ASK ti####pgmdknvd.com
- DNS ASK pd#####xqgiswmnuq.com
- DNS ASK rh###xlo.com
- DNS ASK ld###exxo.com
- DNS ASK hd###xgwnl.com
- DNS ASK ja####ainproca.com
- DNS ASK ht####cgpyyjni.com
- DNS ASK yd####txmdecy.com
- DNS ASK uj###lefwe.com
- DNS ASK mg#####mxvdtbwnmm.com
- DNS ASK aj#####iuhhjwsnkbta.com
- DNS ASK tf####ibfdtvl.com
- DNS ASK uk###vtk.com
- DNS ASK nl####sggiuor.com
- DNS ASK am###mjrx.com
- DNS ASK ok####uevqypwq.com
- DNS ASK ik####xfqedtpx.com
- DNS ASK up####xaigfxxmf.com
- DNS ASK lr#####tvkcnknrjuo.com
- DNS ASK wk#####nalviphfnob.com
- DNS ASK tm###trq.com
- DNS ASK yx#####wlvfjqwjoyix.com
- DNS ASK qc####fegsignq.com
- DNS ASK co####stssmw.com
- DNS ASK bo####fvghndmm.com
- DNS ASK lb####euughhj.com
- DNS ASK mo####byntufg.com
- DNS ASK lv####ffjeflr.com
- DNS ASK lo###ldakqj.com
- DNS ASK bing.com
Miscellaneous:
Creates and executes the following:
- '%TEMP%\byjjjqlf.exe'
Executes the following:
- '<SYSTEM32>\svchost.exe'
